A finite scale model for shock structure

In this paper we explore the use of a finite scale model of fluid dynamics to predict the finite structure of a shock wave in a perfect gas. We begin by documenting the history and issues that have arisen when Navier–Stokes theory is applied to the shock structure problem, and continue by motivating...

Full description

Saved in:

Bibliographic Details
Published in:	Physica. D Vol. 403; no. C
Main Authors:	Margolin, Len G., Plesko, Catherine Suzanne, Reisner, Jon Michael
Format:	Journal Article
Language:	English
Published:	United States Elsevier 27-12-2019
Subjects:	CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	In this paper we explore the use of a finite scale model of fluid dynamics to predict the finite structure of a shock wave in a perfect gas. We begin by documenting the history and issues that have arisen when Navier–Stokes theory is applied to the shock structure problem, and continue by motivating the improvement that finite scale theory might provide from its representation of inviscid (anomalous) dissipation. Furthermore, our primary results include the formulation of a traveling wave equation from finite scale theory, an analysis of the solutions of that equation as regards shock width and monotonicity properties, and an estimation of the critical parameter of the theory from experimental data.
Bibliography:	89233218CNA000001 LA-UR-19-26111 USDOE National Nuclear Security Administration (NNSA)
ISSN:	0167-2789 1872-8022