The nonlinear coupled constitutive relations (NCCR) model has recently gained great success in stable numerical predictions of high-speed flows over three-dimensional complex flight configurations. However, there is an urgent demand for performing essential experimental measurements to validate the new theoretical model before further promotion to engineering applications. In this paper, the numerical simulations of the NCCR model with Jiang’s undecomposed algorithm and Navier–Stokes-Fourier (NSF) equations by in-house code are in comparison with experimental measurements to validate the applicability and accuracy of the NCCR theory in hypersonic flows. The wind tunnel experiments of HB-2 model were conducted at Ma 5 with five different angles of attack (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{\alpha }=\pm 4^\circ , \pm 2^\circ , 0$$\end{document}) in the Φ120 mm hypersonic wind tunnel. It was found that the flow field simulation results by NSF equations and the NCCR model, including aerodynamic force and shock wave structure position, are consistent with the experimental results. Most importantly, the NCCR model could completely recover the flow field solutions of NSF equations in hypersonic continuum flows. Thus, the accuracy and physical consistency of the NCCR model is critically examined and validated for hypersonic flow in continuum region.
Experimental Validation of Nonlinear Coupled Constitutive Relations in Continuum Flows
Lect. Notes Electrical Eng.
Asia-Pacific International Symposium on Aerospace Technology ; 2021 ; Korea (Republic of) November 15, 2021 - November 17, 2021
The Proceedings of the 2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2021), Volume 1 ; Chapter : 22 ; 297-308
2022-08-31
12 pages
Article/Chapter (Book)
Electronic Resource
English