Simulation of flow-field above airfoil, under transonic speeds, based on small disturbance equation

Keqing Hu

doi:10.1117/12.2682010

16 June 2023 Simulation of flow-field above airfoil, under transonic speeds, based on small disturbance equation

Keqing Hu

Proceedings Volume 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023); 126392Z (2023) https://doi.org/10.1117/12.2682010
Event: Third International Conference on Mechanical Design and Simulation (MDS 2023), 2023, Xi'an, China

Abstract

CFD is no longer strange to the public and industry in view of the rapid development of technology, some commercial software like Ansys Fluent has sprung up in the market, but their simulation is sometimes more complex and has certain limitations, so some self coding programme is used in order to cope with better simulation. In this paper, a python program was developed to simulate the transonic flow field above an airfoil, and some comparisons of results from the python program and fluent were discussed, as well as some potential improvements regarding to drawbacks of the python program were mentioned. As results, when mach number is 0.9, the velocity is about 260 m/s at the two edges of the wing, and have maximum around 680 m/s on the top, magnitude decreases as the distance to the aerofoil increases. When Mach number is 1.5, velocity is about 390 at the leading edge with an oblique shock and about 460 at the trailing edge. The runtime for programs are both about 35 s. For improvements, potentially can use list index method to optimize time complexity and add environment participation by introducing a new file as background environment.

Citation Download Citation

Keqing Hu "Simulation of flow-field above airfoil, under transonic speeds, based on small disturbance equation", Proc. SPIE 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023), 126392Z (16 June 2023); https://doi.org/10.1117/12.2682010

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