Mohammad Moumivand; hasan mohammadkhani; javad heydari; mohammad hosein vaezi
Volume 10, Issue 2 , September 2017, , Pages 65-72
Abstract
Determining aerodynamic coefficients and control and stability derivatives play animportant role in the development of flight vehicles. In this paper, roll damping coefficientof BASIC FINNER standard model is determined at different attack angles and withvarious Mach numbers using numerical Sliding Mesh ...
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Determining aerodynamic coefficients and control and stability derivatives play animportant role in the development of flight vehicles. In this paper, roll damping coefficientof BASIC FINNER standard model is determined at different attack angles and withvarious Mach numbers using numerical Sliding Mesh method. Also, the impact of theeffective parameters such as amplitude and frequency of oscillation, time step and numberof iteration in each step in numerical solution are investigated to determine the rolldamping coefficients. Geometry modeling and grid generation and the flow analysis aredone by ANSYS CFX and ANSYS FLUENT software, respectively. In this simulation,Euler’s flow equations, compressible and unsteady flow, finite volume method and densitybased solver with explicit formulation and first-order accuracy for a numerical solutionare used. To evaluate the results of a numerical study, a comparison is made between theexperimental data and MD results, indicating that the results have a good accuracy.
