Reinterpreting Shock Wave Structure Predictions using the Navier-Stokes Equations
Abstract
Classical Navier-Stokes equations fail to predict shock wave profiles accurately. In this paper, the Navier-Stokes system is fully transformed using a velocity variable transformation. The transformed equations termed the re-casted Navier-Stokes equations display physics not initially included. We then analyse the stationary shock structure problem in a monatomic gas by solving both the classical and the re-casted Navier-Stokes equations numerically using a finite difference global solution (FDGS) scheme. The numerical results are presented for different upstream Mach numbers ranging from supersonic to hypersonic flows. We found that the re-casted Navier-Stokes equations show better agreements with the experimentally measured density and reciprocal shock thickness profiles.
Cite
@article{arxiv.1909.02631,
title = {Reinterpreting Shock Wave Structure Predictions using the Navier-Stokes Equations},
author = {M. H. Lakshminarayana Reddy and S. Kokou Dadzie},
journal= {arXiv preprint arXiv:1909.02631},
year = {2021}
}