Mathematical and Numerical Analysis of a Turbulent Viscosity Model.

reportActive / Technical Report | Accession Number: ADA116176 | Open PDF

Abstract:

The turbulent viscosity assumption is the simplest turbulent closure of the Navier-Stokes equations. Of the possible models, some are of physical interest. In the case of the plane duct, a model based on the length scale, Uf, of the flow seems appropriate. Moreover, the introduction of such a model in the Navier-Stokes equations leads to a novel nonlinear parabolic equation, whose mathematical study is the subject of this paper. Author

Author(s):
Brauner, C. M. ; Laine, C.
Author Organization(s):
WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER
Descriptive Note:
Technical summary rept.,
Pagination:
0026

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MRC-TSR-2366
Contract/Grant Number(s):
DAAG29-80-C-0041
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_3.2.1_Kinetic Means; JCA_1.2.3_Educating
Modernization Areas:
Fully Networked C3
Communities of Interest:
Air Platforms
Descriptor(s):
*Numerical analysis, *Viscosity, *Turbulent flow, *Models, Viscous flow, Navier Stokes equations, Mathematical analysis, Nonlinear systems, Parabolas, Closures, Scale, Length
Field(s)/Group(s):
Numerical Mathematics, Fluid Mechanics
Keyword(s):
Turbulent viscosity models, Plane duct
Report Date:
1982 Apr 01