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Full-Text Articles in Aerodynamics and Fluid Mechanics
Numerical Simulation Of Flow Past An Airfoil With Ice Accretion On Leading Edge, Boyu Wang
Numerical Simulation Of Flow Past An Airfoil With Ice Accretion On Leading Edge, Boyu Wang
McKelvey School of Engineering Theses & Dissertations
The focus of this research is on aerodynamic simulation of flow past NACA 23012 airfoil with clean surface and with ice accretion on its leading edge by using the commercial CFD solver ANSYS Fluent. Reynolds-Averaged Navier-Stokes (RANS) computations are performed using Spalart-Allmaras (SA) and Wray-Agarwal (WA) turbulence models. ANSYS mesh package ICEM is used to model the geometry and generate the mesh. The computations are performed at 0, 2, 4, 6, 8, 10, and 12 degrees angle of attack which are compared with experimental data. For the case of ice accretion at the leading edge, the physical geometry becomes more …
Foundations For The Coupled Inflow And Structural Dynamics Of Multi-Rotor Helicopters, Ethan Genter
Foundations For The Coupled Inflow And Structural Dynamics Of Multi-Rotor Helicopters, Ethan Genter
McKelvey School of Engineering Theses & Dissertations
In this work, the Peters-Seidel finite-state model is expanded to calculate the coupled inflow and rotor dynamics of tandem rotor configurations. This establishes the foundation for a more complete multi-rotor, dynamic inflow model with finite-state methods. The derivation presented in this work is for the general case of two rotors in the same plane, overlapping and separated to varying degrees. It is the purpose of this work to study the unique and interesting dynamics and characteristics of various tandem systems heretofore not studied in a dynamic system. Moreover, it is the goal of this work to investigate how these systems …