|
Accession Number
|
ADA565292
|
|
Title
|
Convection Regularization of High Wavenumbers in Turbulence ANS Shocks.
|
|
Publication Date
|
Jul 2011
|
|
Media Count
|
13p
|
|
Personal Author
|
K. Mohseni
|
|
Abstract
|
This manuscript discusses the recent results in the research project on inviscid regularization techniques with emphasis on applications to compressible gas flows. It is well-established that general systems of quasilinear, first-order hyperbolic PDEs exhibit finite-time blowup of smooth solutions, thus restricting well-posedness of classical solutions in short- time. For instance, with conservation laws, one must generally seek global-in- time solutions in a larger class of discontinuous solutions. Further physically motivated admissibility conditions are placed in order to obtain the uniqueness and stability of such solutions.
|
|
Keywords
|
Burgers equation
Compressible flow
Euler equations
Inviscid regularization techniques
Partial differential equations
Shock waves
Smoothing(Mathematics)
Spatial filters
Turbulence
Wavenumbers
|
|
|
Source Agency
|
Non Paid ADAS
|
|
NTIS Subject Category
|
72B - Algebra, Analysis, Geometry, & Mathematical Logic
46B - Fluid Mechanics
|
|
Corporate Author
|
Colorado Univ. at Boulder. Dept. of Aerospace Engineering Sciences.
|
|
Document Type
|
Technical report
|
|
Title Note
|
Final rept. 1 Marf 2009-30 Apr 2011.
|
|
NTIS Issue Number
|
1304
|
|
Contract Number
|
FA9550-09-1-0158
|
