AAST  Vol.7 No.2 , June 2022
Calculation of Aerodynamic Characteristics of Hypersonic Vehicles Based on the Surface Element Method
Abstract: A program for calculating the aerodynamic properties of hypersonic vehicles based on the surface element method was developed using the general-purpose programming language C++. The calculated values of lift coefficients, drag coefficients, and surface pressure coefficients are discussed with the results of wind tunnel experiments using the HL-20 lift body and the NASA hypersonic aircraft STS Columbia OV-102 as research subjects. Finally, the results of the experimental and wind tunnel studies of the aerodynamic characteristics of the HL-20 lift body at an altitude of 65 km and Mach numbers of 6 and 10 Ma are discussed. The maximum error in the aerodynamic characteristics at 6 Ma does not exceed 3%, consistent with the results. The maximum error at 10 Ma occurs in the 11° - 14° angle of attack and does not exceed 10%, which is still within the error tolerance. The STS results for NASA’s hypersonic aircraft were also tested using this procedure. Experimental aerodynamic data for the Colombian OV-102 aircraft. The results show that the program takes only 10 minutes to calculate the results, with no more than 2% error from the wind tunnel experimental results.
Cite this paper: Huang, T. , He, G. and Wang, Q. (2022) Calculation of Aerodynamic Characteristics of Hypersonic Vehicles Based on the Surface Element Method. Advances in Aerospace Science and Technology, 7, 112-122. doi: 10.4236/aast.2022.72007.

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