Aerodynamic analysis of M33 projectile using the CFX code
Wong, Chee Heng
Platzer, Maximilian F.
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The M33 projectile has been analyzed using the ANSYS CFX code that is based on the numerical solution of the full Navier-Stokes equations. Simulation data were obtained against various Mach numbers ranging from M= 0.5 to M2.6 at 0 and 2 angles of attack. Simulation data were also obtained against various angles of attack from 0 to 85 for M= 0.5. For Mach numbers between M= 0.5 to 2.6, the results obtained using the combined k-epsilon and Shear Stress Transport model show good agreement with the experimental range data for the normal force and pitching moment coefficient. The drag coefficient at zero angle of attack tended to be over predicted by an average error of 11.6% with the highest error occurring at M= 1.5. For varying angle of attack up to 85 at M= 0.5, the results obtained from CFX code were compared with simulation results obtained from AP09. The data showed good agreement only up to 20 angles of attack.
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