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Articles 181 - 210 of 962
Full-Text Articles in Mechanical Engineering
Computational Study Of Air-Cooled Servers With Improved Ducting And Chassis Re-Design, Himanshu Girishchandra Modi
Computational Study Of Air-Cooled Servers With Improved Ducting And Chassis Re-Design, Himanshu Girishchandra Modi
Mechanical and Aerospace Engineering Theses - Archive
In recent years there has been a phenomenal increase in cloud computing, net-working, virtualization, and storage which has led to an increase in demand for data centers. To meet this demand, there is a need for the latest computing nodes which causes an increase in power consumption. The cooling system occupy almost 40% portion of total energy consumption. Per ASHRAE TC 9.9, IT equipment needs to operate within recommended and allowable temperatures and humidity zone based on the circumstances. As the inlet air temperature increases, fan power consumption increases too and the Central Processing Units (CPUs) and high heat-generating components …
Experimental Study Of Dynamic Cooling Of Racks Using Flow Control Devices, Fnu Akash
Experimental Study Of Dynamic Cooling Of Racks Using Flow Control Devices, Fnu Akash
Mechanical and Aerospace Engineering Theses - Archive
A data center is a cluster of multiple servers that a company uses to store and process large amounts of data. Due to never-ending demands, the processor densities are increasing every day. A higher processor density would result in the servers heating up more than it would normally creating a need for an efficient cooling system. On an average a water-cooled system would consume up to 40% of the total power required by a data center. Studies are being conducted on improving the overall efficiency of the system by either improving the thermal properties of the system or by improving …
Modeling, Fabrication, And Characterization Of Porous Inconel 718 Structures Using Selective Laser Melting Process, Srihari Srivathsan
Modeling, Fabrication, And Characterization Of Porous Inconel 718 Structures Using Selective Laser Melting Process, Srihari Srivathsan
Mechanical and Aerospace Engineering Theses - Archive
Bio-inspired cellular structures are of great interest these days for many applications, from engineering research to industries. Honeycomb, Body-Centered Cubic with/without Z-struts (BCC-Z/ BCC), Face Centered Cubic with/without Z-struts (FCC-Z/ FCC), and Triply Periodic Minimal Surface (TPMS) such as Gyroid, Diamond, and Schwartz lattices are the most common bio-inspired lattice structures. These structures can be tailored based on their structural organization resulting in superior materials with lightweight properties, adequate strength, and low stiffness. Thankfully, additive manufacturing (AM) has made the fabrication of these complex cellular materials realistic. However, the use of AM could lead to several defects, such as damaged …
Cfd Analysis On Liquid Cooled Cold Plate Using Copper Nanoparticles, Sarthak Agarwal
Cfd Analysis On Liquid Cooled Cold Plate Using Copper Nanoparticles, Sarthak Agarwal
Mechanical and Aerospace Engineering Theses - Archive
In today’s world, most data centres have multiple racks with numerous servers in each of them. The high amount of heat dissipation has become the largest server-level cooling problem for the data centres. The higher dissipation required, the higher is the total energy required to run the data centre. Although still the most widely used cooling methodology, air cooling has reached its cooling capabilities especially for High-Performance Computing data centres. Liquid-cooled servers have several advantages over their air-cooled counterparts, primarily of which are high thermal mass, lower maintenance and eventually lower costs by maintenance by labour. Nano-fluids have been used …
Prediction And Validation Of Continuous Fiber Stiffened Plates Manufactured With Continuous Fiber Fabrication, Nabeel Ahmed Khan
Prediction And Validation Of Continuous Fiber Stiffened Plates Manufactured With Continuous Fiber Fabrication, Nabeel Ahmed Khan
Mechanical and Aerospace Engineering Theses - Archive
The purpose of this thesis was to develop an analytical method for predicting the structural properties of continuous fiber stiffened plates, which was then validated both experimentally and via finite element analysis. The MarkForged Mark Two 3D printer enables parts to be printed with continuous carbon fibers embedded within them. A manufacturing process was developed for printing stiffened grids with our without skins, with continuous fiber reinforcement on the top and bottom of the stiffening ribs, which allows bending stiffness can be maximized. An orthotropic grid was printed using Continues Filament Fabrication (CFF), an additive manufacturing process that embeds reinforcing …
Impact Of Viscoelastic Properties Of Low Loss Printed Circuit Boards (Pcbs) On Reliability Of Wcsp Packages Under Drop Test, Akshay Boovanahally Lakshminarayana
Impact Of Viscoelastic Properties Of Low Loss Printed Circuit Boards (Pcbs) On Reliability Of Wcsp Packages Under Drop Test, Akshay Boovanahally Lakshminarayana
Mechanical and Aerospace Engineering Theses - Archive
Reliability of electronic packages is a major concern as different failure modes are induced due to factors such as temperature loads, mechanical stresses, humidity, corrosion and so on. Finite element analysis (FEA) is often performed to assess reliability under different loading conditions such as thermal cycling, drop testing, power cycling and vibrational loads. Having accurate material property data is one of the key requirements to perform successful FEA study, and a significant amount of time and money is spent to perform accurate material characterizations. Lump modeling approach, where components are represented by a block and assigned effective properties, is commonly …
Measurement Of Change In Cte Of Pcbs Due To Single Phase Immersion Cooling And Impact Of Changed Properties Of Pcbs On Solder Joint Reliability Of Bga Package, Sameer Hemant Dhandarphale
Measurement Of Change In Cte Of Pcbs Due To Single Phase Immersion Cooling And Impact Of Changed Properties Of Pcbs On Solder Joint Reliability Of Bga Package, Sameer Hemant Dhandarphale
Mechanical and Aerospace Engineering Theses - Archive
Oil immersion cooling in high-density data centers is emerging as an alternative for traditional air cooling because of the less power consumption, capacity to handle high power density and less space requirement. To adopt this technique extensively, effect of immersion on reliability of server components in dielectric coolant needs to be evaluated. One of the major reliability concerns in BGA package is 2nd level solder joint failure. The primary reason of solder joint failure is CTE mismatch between the PCB and the package. Also, difference in stiffness of the PCB and the package affects the solder joint reliability. As properties …
Design Optimization Of An Elastically Supported Multi-Beam Rotordynamic System To Minimize Flexural Response With Considerations For Robustness, Bret R. Hauser
Design Optimization Of An Elastically Supported Multi-Beam Rotordynamic System To Minimize Flexural Response With Considerations For Robustness, Bret R. Hauser
Mechanical and Aerospace Engineering Dissertations - Archive
Modern rotating machines are often required to operate with a small physical footprint and/or overall weight; necessitating that they utilize wide-ranging shaft speed to accomplish needed power levels. It is not uncommon that these designs also be required to support operation through a speed range encompassing multiple Critical Speeds while also limiting flexural vibrations to acceptable levels. Design optimization of this class of problem can be particularly difficult in that responses can be highly multi-modal and, when coupled with Finite Element (FE) solvers meet the conditions of a High Dimensional, Computationally Expensive Black Box (HEB) system. Because of this, some …
Pulsed Detonation Engine Nozzle Design And Analysis, Rahul Kumar
Pulsed Detonation Engine Nozzle Design And Analysis, Rahul Kumar
Mechanical and Aerospace Engineering Dissertations - Archive
For a hypersonic flight mission, different flight regimes have been recognized. The successful and efficient operation of the aircraft to traverse through all the flight regimes requires the integration of various propulsion cycles into a single flow path. Using the phenomenon of detonation initiation and propagation, a multi-mode detonation based propulsion concept was proposed for hypersonic flight. Of the different modes proposed, it was recognized that the efficient operation of Normal Detonation Wave Engine (NDWE) mode and Oblique Detonation Wave Engine (ODWE) mode played an important role as they delivered thrust at critical parts of the trajectory. For this study, …
Improving Compressive Strength Of High Modulus Carbon-Fiber Reinforced Polymeric Composite With Varying Modulus Fibers, Sarvenaz Ghaffari
Improving Compressive Strength Of High Modulus Carbon-Fiber Reinforced Polymeric Composite With Varying Modulus Fibers, Sarvenaz Ghaffari
Mechanical and Aerospace Engineering Dissertations - Archive
There has been a strong demand in using high-modulus (HM) carbon-fiber composites potentially enabling lightweight aircraft structures with significant weight savings. However, extremely low fiber-direction compressive strength has been a well-recognized weakness of the HM composites, preventing their implementation in aircraft platforms. Fiber-direction compressive strength of HM and intermediate-modulus (IM) carbon fiber-reinforced polymers (CFRP’s) is presumably governed by microstructural stability. However, strong decrease in fiber-direction compressive strength of HM carbon-fiber composites, compared to their intermediate modulus (IM) counterparts, contradicts predictions from available microstructural buckling theories. A recent work demonstrated that significant improvement in the fiber-direction compressive strength of HM carbon-fiber …
Numerical Study Of Detonation Flame Arrestor Performance And Detonation Interaction With The Arrestor Element, Hoden Ali Farah
Numerical Study Of Detonation Flame Arrestor Performance And Detonation Interaction With The Arrestor Element, Hoden Ali Farah
Mechanical and Aerospace Engineering Dissertations - Archive
A numerical study of detonation propagation and interaction with a flame arrestor product in a combustible gas/vapor transport pipeline system is conducted. The flame arrestor element is modeled as a porous medium using the Forchheimer equation, which is incorporated in the governing conservation equations as a momentum sink. The Forchheimer porous medium model is then used to model the flow through a representative four-inch detonation flame arrestor and is validated with experimental data. The detonation propagation simulation is modeled with the Reynolds averaged Navier-Stokes (RANS) equations extended for reacting flow. A 21-step chemical kinetic mechanism with 10 species is used …
Numerical Study Of High–Frequency Fluidic Valve Injectors For Detonation Engine Applications, Sushma Yalavarthi
Numerical Study Of High–Frequency Fluidic Valve Injectors For Detonation Engine Applications, Sushma Yalavarthi
Mechanical and Aerospace Engineering Dissertations - Archive
The feasibility of fluidic valves for use in detonation-based engines was studied numerically. The fluidic valve acted by shutting off reactant flow through the high pressure behind detonation waves propagating past the valve opening. The valve which featured a plenum cavity was mounted to the side of a pulsed detonation engine, an arrangement that allowed the valve to be characterized under a sustained operation. A series of different cavity lengths were studied. Further, a numerical study of the high-frequency fluidic valve was conducted by using a two-dimensional reactive Euler solver. A 19–step elementary mechanism was employed for the stoichiometric oxyhydrogen …
Dynamics Of A Pulse Detonation Engine Driven Linear Power Generator, Umang Umeshkumar Dighe
Dynamics Of A Pulse Detonation Engine Driven Linear Power Generator, Umang Umeshkumar Dighe
Mechanical and Aerospace Engineering Dissertations - Archive
The dynamics of a pulse detonation engine driven linear power generator were studied. For an ideal pulse detonation engine, the thrust generated is in the form of a piecewise function given by the Endo-Fujiwara model. Nonlinear electromagnetic damping is also introduced in the system due to the rare earth permanent magnets present in the linear generator architecture. Various linear generator topologies were studied using static magnetic analysis. Two configurations of a single degree-of-freedom oscillator system, one with a linear spring restoring force and another with geometric nonlinear spring restoring force, were investigated to study any potential advantages of using nonlinear …
Droplet-Based Microextraction Of Dna Enabled By Electrowetting-On-Dielectric Digital Microfluidics, Shubhodeep Paul
Droplet-Based Microextraction Of Dna Enabled By Electrowetting-On-Dielectric Digital Microfluidics, Shubhodeep Paul
Mechanical and Aerospace Engineering Dissertations - Archive
In recent years there have been significant advances in micro/nanotechnologies employing miniaturized platforms to achieve efficient sample pre-processing, separation, and quantification processes. The idea of bringing several lab-scale protocols on to a single chip, i.e., a lab-on-a-chip (LOC) device along with automation, is a reality now. Miniaturization of biochemical operations usually handled in a laboratory has numerous advantages, such as cost effectiveness, multiplexing, assay speed, and sensitivity. Microfluidic technologies used in LOC devices can manipulate tiny volumes of samples and reagents to perform on-chip protocols with minimal human intervention. Electrowetting-on-dielectric (EWOD)-based digital microfluidics (DMF) is one of the LOC platforms …
Assessment Of Material State In Composites Using Global Dielectric State Variable, Vamsee Vadlamundi
Assessment Of Material State In Composites Using Global Dielectric State Variable, Vamsee Vadlamundi
Mechanical and Aerospace Engineering Dissertations - Archive
Composites are heterogeneous in nature and a fundamental understanding of the material response to applied mechanical, thermal, electrical and other multi-physical fields is required to efficiently design and synthesize the material system and demands attention to long-term behavior in particular. Unlike metals, composites are designed to develop distributed damage and initiation of a single microscopic crack does not individually affect the strength/life of these materials. Therefore, the primary interest is not in single local events but in the process of interaction of multiple events that have a collective global effect on the material behavior. The interaction of these local events …
Development And Testing Of A Control Strategy For Dynamic Cooling At Rack Level In Data Centers, Amrutha Valli Rachakonda
Development And Testing Of A Control Strategy For Dynamic Cooling At Rack Level In Data Centers, Amrutha Valli Rachakonda
Mechanical and Aerospace Engineering Theses - Archive
Cooling is a critical part of data center’s infrastructure, and with ongoing demands in data processing and storage, thermal management issues are of great concern. Some imperative methods of removing heat are either using air or liquid (preferably water or refrigerant). When high power density modules are involved, liquid cooling addresses some of the problems faced by air cooling as liquid coolants have higher thermal capacitance. Also, in the case of multi-chip modules, a non-uniform heating due to multi-core generates hot-spots and increases temperature gradients across the module. A dynamic cold plate along with a self-regulated flow control device was …
Autonomous Carrier Landing Of A Fixed-Wing Uav With Airborne Deck Motion Estimation, Metin Kus
Autonomous Carrier Landing Of A Fixed-Wing Uav With Airborne Deck Motion Estimation, Metin Kus
Mechanical and Aerospace Engineering Theses - Archive
This study focuses on the design, implementation, and evaluation of an autonomous carrier landing system featuring an airborne deck motion estimation module. The three-dimensional dynamics of a fixed-wing UAV with the actuator and engine dynamics are considered. A carrier motion model that accounts for the perturbations caused by various sea states is built. An airborne measurement system, which is composed of a calibrated camera and light-emitting beacons, is utilized to detect several coplanar target points on the moving carrier deck. The known correspondence between the locations of the target points and their coordinates on the focal plane of the camera …
Static Response Calibration Of 3d Printed Thin Walled Structures Using Fused Deposition Modelling, Akhilesh Ravindra Kulkarni
Static Response Calibration Of 3d Printed Thin Walled Structures Using Fused Deposition Modelling, Akhilesh Ravindra Kulkarni
Mechanical and Aerospace Engineering Theses - Archive
3-D printing has enabled flexible, tool-less fabrication that yields numerous benefits. One benefit is unique and complex structural arrangements that increase design freedom to minimize weight. Such arrangements can be guided by advanced topology, shape, and sizing optimization tools using appropriate process constraints to ensure a printable design and can include highly integrated structural details such as stiffeners, flanges, frames, and other connections. 3D printing thin wall aircraft structures presents challenges for material and structural characterization. 3D printing enables integrated structural details, each detail is affected by the print process capability to fabricate the local geometry and deviations from designed …
Backstepping Approach For Design Of Cascaded Pid Controller With Guaranteed Trajectory Tracking Performance For Micro-Air Uav, Yusuf Kartal
Backstepping Approach For Design Of Cascaded Pid Controller With Guaranteed Trajectory Tracking Performance For Micro-Air Uav, Yusuf Kartal
Mechanical and Aerospace Engineering Theses - Archive
Flight controllers for micro-air UAVs are generally designed using Proportional- Integral-Derivative (PID) methods, where the tuning of gains is difficult and time-consuming, and performance is not guaranteed. In this thesis, we develop a rigorous method based on the sliding mode analysis and nonlinear backstepping to design a PID controller with guaranteed performance. This technique provides the structure and gains for the PID controller, such that a robust and fast response of the UAV for trajectory tracking is achieved. First, the second-order sliding variable errors are used in a rigorous nonlinear backstepping design to obtain guaranteed performance for the nonlinear UAV …
Analysis Of Laminated Curved Beam With And Without Defects And Imperfections, Wei-Tsen Lu
Analysis Of Laminated Curved Beam With And Without Defects And Imperfections, Wei-Tsen Lu
Mechanical and Aerospace Engineering Dissertations - Archive
Several studies have focused on the modeling and response characterization of composite structural members, with particular emphasis on composite curved beams. The class of curved beam is explored to determine mechanical response in primary aerospace structural applications. The present work focuses on developing analytical closed-form solutions for investigating composite curved beams with and without fiber waviness and delamination. The present work can efficiently characterize the structural behavior of composite curved beams under bending. This work shows the development of a novel mathematical approach to predict structural performance by investigating axial stiffness, bending stiffness with consideration of shear deformation in composite …
Electrowetting-On-Dielectric (Ewod) Digital Microfluidic Device For Synthetic Organic Chemistry, Matin Torabinia
Electrowetting-On-Dielectric (Ewod) Digital Microfluidic Device For Synthetic Organic Chemistry, Matin Torabinia
Mechanical and Aerospace Engineering Dissertations - Archive
Over the past decades, microscale chemical reaction technology has been attractive in diverse areas of chemistry. It allows the precise control of quantified reagents and highly efficient heat and mass transfer, because of a large interface-to-volume ratio–particularly in case of the exothermic reaction and mixing–, reduced consumption of toxic or expensive agents, improved reaction profiles, and enhanced selectivity compared to macro-scale reactions. The mainstream microscale reaction processes were established using continuous microchannel flow systems, which has emerged as a powerful complement to batch chemistry on the laboratory scale due to relative advantages, some of which include: increased safety, more accurate …
An Implementation Of The Regularized Extended Finite Element Method In Abaqus, Yu-Jui Liang
An Implementation Of The Regularized Extended Finite Element Method In Abaqus, Yu-Jui Liang
Mechanical and Aerospace Engineering Dissertations - Archive
The Regularized eXtended Finite Element Method (Rx-FEM) methodology is a discrete damage modeling (DDM) technique, which represents an approach to the progressive damage analysis (PDA) in laminated composites when multiple damage events such as matrix cracks and delamination are introduced into the model via the displacement discontinuities. In the Rx-FEM, the Heaviside step function that is typically used to introduce a displacement discontinuity across a crack surface in the eXtended Finite Element Method (x-FEM) is replaced by a continuous function approximated by using the finite element (FE) shape functions. This regularization offers unique possibility for the implementation of the Rx-FEM …
Material Characterization And Fracture Prediction Of Fdm Printed Parts, Sanchita Sheth
Material Characterization And Fracture Prediction Of Fdm Printed Parts, Sanchita Sheth
Mechanical and Aerospace Engineering Theses - Archive
In order to take advantage of the design freedom that Additive Manufacturing offers, most applications require reliable material characterization. This can ensure that a design performs within its environment and life requirements. This work discusses two models. One investigates the raster angle dependency of stiffness properties and the other numerically predicts fracture in Fused Deposition Modeling (FDM) printed polymer parts. Pre-processing of FDM geometry was done in Abaqus CAE (SIMULIA TM). FEA and post-processing was done in BSAM, which is a damage prediction software developed for composites. BSAM uses a regularized extended finite element approach of Discrete Damage Modeling. In …
A Robust Controller Design For A Tailless Uav With Effective Control Allocation, Ethem Hakan Orhan
A Robust Controller Design For A Tailless Uav With Effective Control Allocation, Ethem Hakan Orhan
Mechanical and Aerospace Engineering Theses - Archive
Attempts to completely remove the tails from aircraft can be dated back to the early days of modern aviation. A number of stability and control problems arising from the unique characteristics of the configuration resulted in poor handling qualities and some dangerous flight characteristics in the early designs. Lately, this configuration is becoming widespread again and the current state-of-the-art of fly-by wire technology and modern control design techniques enable design of tailless aircraft which are safe to fly. In this thesis, a study on the application of modern robust control design techniques on a tailless UAV is presented. A nonlinear …
Characterization Of Thermo-Mechanical Properties Of Copper Nano-Particles Infused Acrylonitrile Butadiene Styrene (Abs)- 3d Printed Specimens, Viswajit Talluru
Characterization Of Thermo-Mechanical Properties Of Copper Nano-Particles Infused Acrylonitrile Butadiene Styrene (Abs)- 3d Printed Specimens, Viswajit Talluru
Mechanical and Aerospace Engineering Theses - Archive
Now a days the use of metal nanoparticle infused polymer is becoming widespread, since the development of polymer with enhanced thermal properties are being used for the growth of electronic packaging industry. In this study, copper nanoparticles are mixed with the Acrylonitrile Butadiene Styrene (ABS) thermoplastic in varying mass proportions, to observe the changes in thermal and structural properties of ABS. As expected, the extruded wire with high nano-particle concentration exhibited much higher thermal conductivity than its raw ABS form. For the case of 2% copper nanoparticle infused ABS using one dimensional steady state heat flux method though extrude wire …
Nonlinear Control Of Unmanned Aerial Vehicles With Cable Suspended Payloads, Ameya Godbole
Nonlinear Control Of Unmanned Aerial Vehicles With Cable Suspended Payloads, Ameya Godbole
Mechanical and Aerospace Engineering Dissertations - Archive
The research focuses on the mathematical modeling and control of an unmanned aerial vehicle with cable suspended payload. A comprehensive mathematical model is derived for a quadcopter with a cable suspended payload using the Newton-Euler method and the Euler-Lagrange formulation. These methods assume that the cable is massless and always taut and cannot be used to simulate the cases when the cable is flexible. Hence, an alternative approach to model the flexibility of the cable is presented using Lagrangian mechanics by approximating the cable to be a chain of serially connected links. The motion of the payload induces disturbances on …
Modeling And Simulation Of Contact And Impact Dynamics In Multibody Systems, Abhishek Chatterjee
Modeling And Simulation Of Contact And Impact Dynamics In Multibody Systems, Abhishek Chatterjee
Mechanical and Aerospace Engineering Dissertations - Archive
Contact and impact analyses are an essential part of multibody dynamic simulations. Modeling of contact and impact problems have applications in a wide variety of areas including robotics, earthquake engineering, computer graphics, and manufacturing. Collisions between objects typically take place over surfaces that are represented by a set of points in the operation space, thereby requiring multi-point contact and impact analysis. Analysis of multi-point contact and impact may lead to indeterminate (underdetermined) problems with more number of unknowns (contact forces) than equations. This work pertains to the problem of resolving multi-point contact and impact problems in multibody systems consisting of …
Numerical Simulation Of Biodiesel Synthesis In A Continuous Flow Microreactor And A Porous Media Reactor, Terdsak Neadkratoke
Numerical Simulation Of Biodiesel Synthesis In A Continuous Flow Microreactor And A Porous Media Reactor, Terdsak Neadkratoke
Mechanical and Aerospace Engineering Dissertations - Archive
Biodiesel has become an increasingly popular fossil fuel substitute in recent years. Constant attempts are being made to develop new technology that increases the efficiency and yield of biodiesel production units. Numerical simulation can play an integral role in evaluating new reactor designs or optimizing existing ones. Various attempts have been made to develop an accurate computational model that represents biodiesel production. Many computational models for transesterification are based on simplified kinetic models that do not include the effect of saponification. Furthermore, many models assume isothermal conditions and uniform spatial concentrations. Therefore, these models would not be appropriate for evaluating …
Predicting Crack Initiation And Early Crack Growth Behavior Of Pure Nickel Using Surface Topography Analysis, Jalal Fathi Sola
Predicting Crack Initiation And Early Crack Growth Behavior Of Pure Nickel Using Surface Topography Analysis, Jalal Fathi Sola
Mechanical and Aerospace Engineering Dissertations - Archive
Fatigue has long been studied as the most critical loading mode for man-made structures. Despite the advances in material behavior characterization and numerical calculation, many structures unexpectedly fail before their designed life. Most of the studies in crack initiation are solely for describing the material and failure behavior and are not capable of predicting the failure before it starts. In addition, most of the fatigue crack growth models are based on the Paris Model with some modifications, which their application is limited to long crack. This implies that finding new methods which can reliably predict material failure is very important. …
A Numerical Study Of Cavitating Flows Based On Plic-Vof Method For Arbitrary Unstructured Meshes, Dezhi Dai
A Numerical Study Of Cavitating Flows Based On Plic-Vof Method For Arbitrary Unstructured Meshes, Dezhi Dai
Mechanical and Aerospace Engineering Dissertations - Archive
Cavitation appears when local static pressure drops below the water vapor pressure and causes significant impacts on marine propeller blades. The Volume of Fluid (VOF) method, which is also referred to as the Transport Equation-based Model (TEM), has been extensively adopted in the cavitating flow simulations. Piecewise Linear Interface Calculation (PLIC) schemes have been extensively employed in the VOF method for interface capturing in numerical simulations of multiphase flows. Polyhedral unstructured meshes are often adopted due to their geometric flexibility and superiority in gradient calculation. Four analytical interface reconstruction algorithms in the PLIC-VOF method for arbitrary convex polyhedral cells have …