Testing the numerical calculation methods and programs using the example of the problem for estimating the heat flow in the area of a separated flow due to shock wave on a flat sharp plate with a vertical sharp wedge mounted on it

A. A. Aksenov^a, E. V. Babich^b, S. Bakhne^c, V. Ya. Borovoy^c, S. M. Bosnyakov^c, V. V. Vlasenko^c, G. E. Dumnov^d, S. V. Zhluktov^a, R. N. Zhuchkov^e, A. S. Kozelkov^e, E. V. Kolesnik^b, D. A. Korchazhkin^e, N. S. Kuranosov^a, S. V. Matyash^c, S. V. Mikhailov^c, V. E. Mosharov^c, V. N. Radchenko^c, E. M. Smirnov^b, A. A. Sobachkin^d, E. V. Strel'tsov^c, V. A. Talyzin^c, A. I. Troshin^c, N. A. Kharchenko^c, A. Chuprikov^d, M. A. Yakunov<sup>a

a</sup> JSC TESIS, Moscow
^b Peter the Great St. Petersburg Polytechnic University, St. Petersburg
^c Central Aerohydrodynamic Institute n.a. Prof. N.E. Zhukovsky, Zhukovsky
^d JSC TC Integration, Moscow
^e Russian Federal Nuclear Center – All-Russia Research Institute of Experimental Physics, Sarov

Abstract: The description of the TsAGI experimental technique is given, as well as various methods and programs for calculating heat fluxes in the area of a separated flow from the shock wave on a flat plate with a vertical sharp wedge mounted on it. A series of test calculations was carried out. The physical features of the flow are investigated as well as calculated and experimental data are compared. Estimates of the tested programs accuracy are made.

Keywords: Ludwig wind tunnel, supersonic flow, RANS equations, turbulence model, numerical scheme, heat flux, panoramic temperature measurement method, comparison of calculation and experimental results.

Received: 21.05.2025
Revised: 12.07.2025
Accepted: 08.09.2025

DOI: 10.20948/mm-2026-01-08