Study on the performance of spatial discretization schemes for hypersonic flow
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 13 September 2018
Issue publication date: 19 October 2018
Abstract
Purpose
With the continuous increase of space activities and insight into space exploration, the velocity of near space hypersonic vehicles becomes higher and higher, which leads to the aerothermodynamic phenomenon getting worse around a vehicle; therefore, the exploration of numerical scheme applicability is essential for hypersonic flow simulations.
Design/methodology/approach
The implicit finite volume schemes are derived from axisymmetric Navier–Stokes equations for chemical equilibrium flow and programmed in Fortran. Taking the atmosphere at 30 km as an example, the performance of spatial discretization schemes such as AUSMPW and AUSMPW+ are analyzed in a range of Mach numbers from 17 to 32.
Findings
The AUSMPW scheme appears pressure jump near the stagnation if the Mach number is over 18, but AUSMPW+ scheme shows better performance in comparison.
Originality/value
This study will help the aerothermodynamic design in near space hypersonic vehicles.
Keywords
Acknowledgements
This work is supported by the National Natural Science Foundation of China (11472037 and 11772042) and the opening project of State Key Laboratory of Explosion Science and Technology (BIT, KFJJ15-12M).
Citation
Huang, H. and Hu, Y. (2018), "Study on the performance of spatial discretization schemes for hypersonic flow", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 28 No. 8, pp. 1791-1808. https://doi.org/10.1108/HFF-01-2018-0005
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited