Optimization of Two-dimensional Wedge Flow Field at Supersonic Mach Number

Sher Afghan  Khan; Abdul  Aabid; Imran  Mokashi; Abdulrahman Abdullah  Al-Robaian; Ali Sulaiman  Alsagri

Authors

Sher Afghan Khan Department of Mechanical Engineering, Faculty of Engineering, International Islamic University Malaysia, 53100, Kuala Lumpur, Malaysia
Abdul Aabid Department of Mechanical Engineering, Faculty of Engineering, International Islamic University Malaysia, 53100, Kuala Lumpur, Malaysia
Imran Mokashi Department of Mechanical Engineering, Faculty of Engineering, International Islamic University Malaysia, 53100, Kuala Lumpur, Malaysia
Abdulrahman Abdullah Al-Robaian Department of Mechanical Engineering, Qassim University, Saudi Arabia
Ali Sulaiman Alsagri Department of Mechanical Engineering, Qassim University, Saudi Arabia

Keywords:

CFD method, supersonic flow, wedge, FEM, Mach number

Abstract

In the present condition, there is a high demand for exact solutions through analytical, computational and measurements in the field of aerospace engineering. For wind tunnel testing it is difficult to bear the cost because of highly expensive materials needed for wind tunnel testing and the time needed to accomplish the experiments. Therefore, in this paper, analytical and numerical methods are used to evaluate the flow field over a wedge at supersonic Mach numbers for attached as well as detached shock cases. The wedge with the various half-wedge angle at Mach number 2 has been considered for the simulation. Closed form solutions are obtained for the various semi-vertex angle of the wedge. Supersonic similarity parameter has been used to obtain the pressure distribution over wedge at a different angle of attack with attached and detached shock wave cases. Results are in good agreement with the theoretical results of the shock-expansion theory. The analytical results are compared with those obtained by simulation. The results are obtained for pressure, temperature, Mach number, and the density using ANSYS code are in good agreement with the results obtained analytically.