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Experimental And Computational Investigation Of Divergent Thrust Losses In Rocket Nozzles, Vaibhav Arya Graduate Engineer, Anushka Sunil Kapse Post Graduate Student 2022 Sandip University, MH, INDIA

Experimental And Computational Investigation Of Divergent Thrust Losses In Rocket Nozzles, Vaibhav Arya Graduate Engineer, Anushka Sunil Kapse Post Graduate Student

Graduate Research in Engineering and Technology (GRET)

The nozzle is a critical component of any rocket engine because it transforms high pressure and high temperature (with sluggish net velocity) within the combustion chamber into high velocity but low pressure. Individually, the molecules in the mixed propellants have rapid velocity in the combustion chamber, but directions are randomly pointing in all directions. A convergent-divergent nozzle, also known as a CD nozzle, is fashioned like a tube with two bulging ends and a thin part in the center. This structure/design provides the nozzle with a balanced shape. By turning the flow's heat energy into kinetic energy, the ...


A Study On Concepts De-Laval Nozzle Using Cfd Tool, Krishna Yadav Graduate Engineer, Digambar Daware Mr., Vedant Akolkar, Pallavi Padalwar 2022 Department of Aerospace Engineering Sandip University

A Study On Concepts De-Laval Nozzle Using Cfd Tool, Krishna Yadav Graduate Engineer, Digambar Daware Mr., Vedant Akolkar, Pallavi Padalwar

Graduate Research in Engineering and Technology (GRET)

A device that is used to control the characteristics of fluid is known as a nozzle. Its primary function is to increase the fluid's rate of motion. A traditional De-Laval nozzle will have three distinct parts: a throat, a converging section, and a diverging part. This paper will attempt to detail the bulk of the nozzle concepts developed by De Laval. This paper provides a comprehensive analysis of the nozzle's operational philosophy. In addition, theoretical flow analysis is carried out at a number of locations along the length of the nozzle. The dynamic changes in flow parameters such ...


Two Dimensional Cfd Analysis On Different Rocket Nozzles, Yogesh Bhawarker Mr., Digambar Daware Mr., Krishna Yadav, Vedant Akolkar, Pallavi Padalwar, Prakash Katdare 2022 Department of Aerospace Engineering, Sandip University, SOET, NASHIK, MH

Two Dimensional Cfd Analysis On Different Rocket Nozzles, Yogesh Bhawarker Mr., Digambar Daware Mr., Krishna Yadav, Vedant Akolkar, Pallavi Padalwar, Prakash Katdare

Graduate Research in Engineering and Technology (GRET)

The reduction of Earth-to-orbit launch costs in conjunction with an increase in launcher reliability and operational Efficiency is the key demands on future space transportation systems, like single-stage-to-orbit vehicles (SSTO). The realization of these vehicles strongly depends on the performance of the engines, which should deliver high performance with low system complexity. Performance data for rocket engines are practically always lower than the theoretically attainable values because of imperfections in the mixing, combustion, and expansion of the propellants. The main part of the project addresses different nozzle concepts with improvements in performance as compared to conventional nozzles achieved by Different ...


Cfd Analysis Of Nozzle Flow With Sudden Expansion In Aerospace Engineering, Yogesh Bhawarker Mr., Ritik Patidar, Prakash Katdare 2022 Department of Aerospace Engineering, Sandip University, SOET, NASHIK, MH

Cfd Analysis Of Nozzle Flow With Sudden Expansion In Aerospace Engineering, Yogesh Bhawarker Mr., Ritik Patidar, Prakash Katdare

Graduate Research in Engineering and Technology (GRET)

As the need for missiles and rockets has increased exponentially, the challenges associated with the gas dynamics of these vehicles continues to be a concern. The pressure in the downstream is sub atmospheric whenever there is a sudden expansion. This low pressure in the recirculation zone causes significant drag, accounting for almost two-thirds of the net drag of the aerospace vehicles. Hence, the purpose of this paper is to deliver a Computational Fluid Dynamic (CFD) analysis of the impact geometry and flow parameters have on the thrust force generated by the flow from convergent divergent nozzles to a suddenly expanded ...


Hybrid Rocket Propulsion Development And Application, AKSHAY GHARAT Assistant Professor, VINAYAK HASTAK Graduate Engineer 2022 SOET, Sandip University, MH, INDIA

Hybrid Rocket Propulsion Development And Application, Akshay Gharat Assistant Professor, Vinayak Hastak Graduate Engineer

Graduate Research in Engineering and Technology (GRET)

Satellite technology is advancing. Satellite propulsion requires several desired rocket properties. This is necessary for 1 kg of payload. Launch vehicles no longer need rocket engines. Application includes satellite movement, orbit transfer, and probe and lander propulsion. Space travel is inventive and exciting.

Research, production, and use costs must be decreased to make space transportation systems generally available. Security shouldn't be affected. Rocket propellants must be high-performing, non-toxic, and safe. Rocket engines have other parts. Restarting and throttling are crucial. These are inaccessible to solid rocket motors. Developing a liquid rocket engine is hard and expensive, but it can ...


Engine Performance On Atomization Of Fuel Injector: A Review, Ankit Patil Er., Akshay C. Bedke Er., Vedant A. Deshmukh Er., Pratiksha Y. Shevare Er. 2022 Department of Aerospace Engineering, SOET, Sandip University, Nashik, INDIA

Engine Performance On Atomization Of Fuel Injector: A Review, Ankit Patil Er., Akshay C. Bedke Er., Vedant A. Deshmukh Er., Pratiksha Y. Shevare Er.

Graduate Research in Engineering and Technology (GRET)

The impact of the fuel injection of fuel atoms on engine performance has been investigated to improve fuel efficiency and waste disposal features. The fuel swirl method for injection atomization was evaluated both by the analysis of the fuel flow and the sample test. The goal of the paper is to establish good fuel atomization over the range of engine performance. As a result of our studies, it has been concluded that the desired atomization can be achieved when gasoline is thrown into a circular motion. Fuel spray and atomization features play an important role in the performance of internal ...


Thrust Generation By Ion Propulsion Technology, Vishal Kaushik Prof., Raghav M. Katwale Mr., Dhiraj N. Sakore Mr. 2022 Assistant Professor Department of Aeronautical Engineering, Priyadarshini College of Engineering, Nagpur, Maharashtra

Thrust Generation By Ion Propulsion Technology, Vishal Kaushik Prof., Raghav M. Katwale Mr., Dhiraj N. Sakore Mr.

Graduate Research in Engineering and Technology (GRET)

Electric propulsion system proven to be a suitable and efficient alternative for conventional propulsion systems .Ion thrusters is one of the electric propulsion systems. It has very high specific impulse generation (Isp) and consumes very low amount of fuel. Ion thrusters can easily compete with chemical rockets propulsion, even if the thrust produce is very low compares to chemical propulsion. Ion propulsion system can be used for various space missions like orbit station keeping for geostationary satellite, orbit and altitude controlling, multi-goal missions. Ion thrusters are more compatible for deep space missions as they are tested for endurance test where ...


A Critical Study On Missile And Missile Guidance, Jay Vavdiya Engineer, Vishal Kaushik Prof. 2022 Department of Aerospace Engineering, Sandip University, Nashik, Maharashtra

A Critical Study On Missile And Missile Guidance, Jay Vavdiya Engineer, Vishal Kaushik Prof.

Graduate Research in Engineering and Technology (GRET)

As a result of advancements in armament technology, traditional conceptions of battle are going through a profound transformation. The use of technology as a force multiplier is extremely prevalent in modern combat. In the modern battlefield, autonomous weapons are absolutely necessary. In this day and age, the presence of missiles is almost always indicative of a country's level of military power. The employment of guided weapons is an unavoidable need in the arsenals of modern militaries. The study will primarily concentrate on several types of weapons, ranging in range from extremely short to medium, long, and automated. This study ...


Missile Materials, Pranjali Pandurang Sankpal Engineer-Graduate, Varun Vourganti Dr. 2022 Aerospace Engineering, Sandip University, Maharashtra, INDIA

Missile Materials, Pranjali Pandurang Sankpal Engineer-Graduate, Varun Vourganti Dr.

Graduate Research in Engineering and Technology (GRET)

The development of missile materials is the key to indigenous materials and their components. The selection of materials includes some the properties such as high strength to weight ratio, easy fabrication, good corrosion resistance, reliable quality, and high fracture toughness. The materials used for the airframe and propulsion system are alloys of aluminum, titanium, magnesium, and maraging steel. Non-metallic materials are also used such as carbon-carbon composites and polymer materials. High purity materials like phosphorous, and silicon are also important for material advancements. The paper outlines the needs and challenges of research and its solutions.


Film Cooling Method In Liquid Rocket Engine, Pradnya Cherkupalli Engineer Graduate, Juluru Sandeep Prof. 2022 Department of Aerospace Engineering, Sandip University, Nashik, Maharashtra, INDIA

Film Cooling Method In Liquid Rocket Engine, Pradnya Cherkupalli Engineer Graduate, Juluru Sandeep Prof.

Graduate Research in Engineering and Technology (GRET)

Design Criteria, Experimental Studies of Supersonic Shock Wave Interaction with Film Cooling, and High-Pressure Subscale Combustion Chamber of Film Cooling Liquid-Propellant Rocket Engines are all covered in this review study. Using earth-storable, space-storable, and cryogenic propellant combinations, the study establishes the applicability of film cooling to rocket engines in the high thrust range. The study's findings are given in this publication. Additionally, data from studies mixing different types of propellant were used to evaluate the analytical model's accuracy. Tests employing supersonic film cooling were done in the wind tunnel to investigate the impact of external shock waves on ...


Aerospace Components Made By Polymer Material, Minal Babar Graduate Engineer, Priyansh Saxena Graduate Engineer, Nilesh Vilash Thube Graduate Engineer, GOKUL RAJ S Engineering Graduate 2022 Department of Aerospace Engineering, Sandip University, MH, INDIA

Aerospace Components Made By Polymer Material, Minal Babar Graduate Engineer, Priyansh Saxena Graduate Engineer, Nilesh Vilash Thube Graduate Engineer, Gokul Raj S Engineering Graduate

Graduate Research in Engineering and Technology (GRET)

The aerospace and aviation industry have fasted growing industries on a global scale. Reliable aircraft demands many top rubber components. These rubber components must-have high performance and endurance properties, since they will be exposed to a range of extreme weather conditions, such as excessively hot or cold temperatures, and different types of oils and gases. Rubber products are becoming more famous because of their durability under extreme environmental conditions and cost-effectiveness. The rubber used for aircraft must be of high quality, and this factor is most important in the production of the necessary parts. To study the effect of all ...


Unmanned Aerial Vehicles An Overview And Applications, Ashish Rahuldeo Pande UG - student, Pranav Sanjay Nerkar UG-student, Bhushan Borse UG-Student, Kirubakaran V Engineer 2022 SOET, Sandip University

Unmanned Aerial Vehicles An Overview And Applications, Ashish Rahuldeo Pande Ug - Student, Pranav Sanjay Nerkar Ug-Student, Bhushan Borse Ug-Student, Kirubakaran V Engineer

Graduate Research in Engineering and Technology (GRET)

A drone that is not manned Automated vehicles are rational admirers of the latest planes, and they're always looking for ways to improve. Wartime and re-exploration capabilities are the primary emphases of the current generation of UAVs, leaving the existing market impacted by UAV technology unaffected. UAV technology has a wide range of current uses, ranging from emergency response to media to agriculture to communications experts. However, the adaptable unmanned aerial vehicle is not yet available to the general public. As a result, a UAV that can carry a wide range of flexible tools should be light and lightweight ...


Manufacturing Process And Emerging Advantage Of Graphene Based Composites In Aerospace- A Review, Vaibhav Arya Graduate Engineer, Arjun N Prof. 2022 Sandip University, MH, INDIA

Manufacturing Process And Emerging Advantage Of Graphene Based Composites In Aerospace- A Review, Vaibhav Arya Graduate Engineer, Arjun N Prof.

Graduate Research in Engineering and Technology (GRET)

The cardinal pillar for this paper is to showcase the composition of Graphene-based composites and reveal the hidden uses of Graphene-based composites in aerospace dominion. This paper briefly discusses the different methods by which graphene-based composites can be synthesized mostly those with functional polymers and inorganic nanostructures and additionally covers a few of the applications of graphene-based composites such as lightweight, fire retardancy, and additive manufacturing. Moreover, this detailed paper also brings up crucial highlights where graphene-based composites have covered long distances from the research lab to commercialization, specifically focusing on aerospace industries.


Engine Use In Hybrid Rocket - A Review, Shantanu. U. Bayaskar Er., Vaibhav Arya Graduate Engineer, Shiva Prasad U Prof. 2022 Sandip University

Engine Use In Hybrid Rocket - A Review, Shantanu. U. Bayaskar Er., Vaibhav Arya Graduate Engineer, Shiva Prasad U Prof.

Graduate Research in Engineering and Technology (GRET)

Despite all the other rocket motors on the market such as solid and liquid. A historically failed motor was in the market which was handicapped in performance but now with technological development in the previous years, hybrid rocket motor is the most influential talk in the market.

Deeper in the paper we will discuss the hybrid motor focusing on the fuel used in Hybrid rocket engines and the performance depending on the design. Furthermore, this review paper will help us to study the different materials for the betterment of the engine performance. We will also be focusing on the methods ...


Editorial, Shiva Prasad U Mr., M. Suresh Kumar Prof.(Dr.) 2022 Sr. Asst. Professor Department of Aerospace Engineering, Sandip University, SOET, NASHIK, MH

Editorial, Shiva Prasad U Mr., M. Suresh Kumar Prof.(Dr.)

Graduate Research in Engineering and Technology (GRET)

This special edition is devoted to Rockets and Missile Technology, a developing sector that will likely increase significantly as rocket and missile design technology progress. Modern military arsenals must contain advanced guided-weapons technology. As the need for missile and rocket technology grows, they are employed in various applications. Technological advancements additionally highlight the system's capabilities, functions, and applications, improving its efficacy and use. When it comes to combat aircraft, the armaments that go with them decide the price. New technology and applications such as hypersonic weaponry, long-range rockets and missiles, and space-based military equipment produce market upheaval. Current rocket ...


4d Gas Geological Research On Coal Seam With Gas Hazard Potential In Mining Panel, Hongqing Cui, Xin He, Zehua Wang 2022 Henan Polytechnic University (HPU), School of Safety Science and Engineering, China

4d Gas Geological Research On Coal Seam With Gas Hazard Potential In Mining Panel, Hongqing Cui, Xin He, Zehua Wang

Journal of Sustainable Mining

According to regulations of the mining industry in China, it is necessary to carry out gas hazard prevention projects in advance when mining coal seams with gas hazard potential, and gas geological research should be taken as the basic work for optimal design and effective construction of gas hazard prevention projects. Research on coal seam with gas hazard potential have shown that anomalous geological area could be the gas hazard potential area as well, where superimposed tectonic and mining stress field usually results in tectonically disturbed coal and pressured gas. A 4D gas geological research method is used to find ...


Exploring The Metabolic Landscape Of Pancreatic Ductal Adenocarcinoma Cells Using Genome-Scale Metabolic Modeling, Mohammad Mazharul Islam, Andrea Goertzen, Pankaj K. Singh, Rajib Saha 2022 University of Nebraska-Lincoln

Exploring The Metabolic Landscape Of Pancreatic Ductal Adenocarcinoma Cells Using Genome-Scale Metabolic Modeling, Mohammad Mazharul Islam, Andrea Goertzen, Pankaj K. Singh, Rajib Saha

Chemical and Biomolecular Engineering -- All Faculty Papers

Pancreatic ductal adenocarcinoma (PDAC) is a major research focus because of its poor therapy response and dismal prognosis. PDAC cells adapt their metabolism to the surrounding environment, often relying on diverse nutrient sources. Because traditional experimental techniques appear exhaustive to find a viable therapeutic strategy, a highly curated and omics-informed PDAC genome-scale metabolic model was reconstructed using patient-specific transcriptomics data. From the model-predictions, several new metabolic functions were explored as potential therapeutic targets in addition to the known metabolic hallmarks of PDAC. Significant downregulation in the peroxisomal beta oxidation pathway, flux modulation in the carnitine shuttle system, and upregulation in ...


Investigation Of Material, Process, And Environmental Factors In Bubble Defect Formation For Labels Of Bottled Essential Oils, Joseph Lloyd Andrus 2022 Brigham Young University

Investigation Of Material, Process, And Environmental Factors In Bubble Defect Formation For Labels Of Bottled Essential Oils, Joseph Lloyd Andrus

Theses and Dissertations

Labeling of consumer products is not only required by regulatory bodies for product identification, but it also serves as a symbol of product quality and prestige. Bubbles under the label are unsightly and impact customer satisfaction. Pressure Sensitive Adhesive (PSA) labels currently make up more than eighty percent of all labels in the market today, yet little research could be found addressing causes of bubbling in an industrial setting. A root cause analysis for bubble development included four aspects: label application, environmental conditions of shipping and storage, defects in glass bottle geometry, and oil contamination. The most significant findings from ...


Data Parallel Frameworks For Training Machine Learning Models, Guoyi Zhao 2022 University of Massachusetts Amherst

Data Parallel Frameworks For Training Machine Learning Models, Guoyi Zhao

Doctoral Dissertations

Machine learning is the study of computer algorithms that focuses on analyzing and interpreting patterns and structures in data. It has been successfully applied to many areas in computer science and achieved state-of-the-art results to enable learning, reasoning, and decision-making without human interactions. This research aims to develop innovated data parallel frameworks to accommodate the computing resources to parallelize different machine learning and deep learning algorithms and speed up the training. To achieve that, we explore three interesting frameworks in this dissertation: (1) Sync-on-the-fly framework for gradient descent algorithms on transient resources; (2) Asynchronous Proactive Data Parallel framework for both ...


The Influence Of Flow Mechanotransduction On Endothelial Cells In The Lymphatic Valve Sinus, Joshua Daniel Hall 2022 University of Massachusetts Amherst

The Influence Of Flow Mechanotransduction On Endothelial Cells In The Lymphatic Valve Sinus, Joshua Daniel Hall

Doctoral Dissertations

Fluid flow in the cardiovascular and lymphatic systems influences the phenotype of endothelial cells that line the interior to the vessel via mechanotransduction. Geometric features in a vessel such as curvature, bifurcation, and valves promote heterogeneous fluid flow profiles, inducing a heterogeneous endothelial phenotype within a vessel region. Certain flow conditions are associated with vascular dysfunction, and diseases such as atherosclerosis preferentially develop in areas of flow disturbance. Lymphatic vessels are highly analogous to blood vessels, although lymphatic flow characteristics and its effect on lymphatic endothelial cells (LECs) via mechanotransduction have been comparatively less examined. The most significant geometric features ...


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