Revisit to Grad's Closure and Development of Physically Motivated Closure for Phenomenological High-Order Moment Model

Journal Article · Fri May 20 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3562633· OSTI ID:21511571

Myong, R S; Nagdewe, S P ^[1]

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1. Dept. of Mechanical and Aerospace Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam 660-701 (Korea, Republic of)

The Grad's closure for the high-order moment equation is revisited and, by extending his theory, a physically motivated closure is developed for the one-dimensional velocity shear gas flow. The closure is based on the physical argument of the relative importance of various terms appearing in the moment equation. Also, the closure is derived such that the resulting theory may be inclusive of the well established linear theory (Navier-Stokes-Fourier) as limiting case near local thermal equilibrium.

• OSTI ID: 21511571
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1333; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALCULATION METHODS
CLOSURES
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUILIBRIUM
FLUID FLOW
GAS FLOW
MOMENTS METHOD
NAVIER-STOKES EQUATIONS
ONE-DIMENSIONAL CALCULATIONS
PARTIAL DIFFERENTIAL EQUATIONS
SUPERSONIC FLOW
THERMAL EQUILIBRIUM
VELOCITY