skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: IMPLICIT TURBULENE MODELING FOR HIGH REYNOLDS NUMBER FLOWS

Abstract

No abstract prepared.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
788296
Report Number(s):
LA-UR-01-5836
TRN: US200306%%180
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Oct 2001
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; REYNOLDS NUMBER; SIMULATION; LANL

Citation Formats

L. G. MARGOLIN, P. K. SMOLARIKIEWICZ, and A. A. WYSZOGRODZKI. IMPLICIT TURBULENE MODELING FOR HIGH REYNOLDS NUMBER FLOWS. United States: N. p., 2001. Web.
L. G. MARGOLIN, P. K. SMOLARIKIEWICZ, & A. A. WYSZOGRODZKI. IMPLICIT TURBULENE MODELING FOR HIGH REYNOLDS NUMBER FLOWS. United States.
L. G. MARGOLIN, P. K. SMOLARIKIEWICZ, and A. A. WYSZOGRODZKI. Mon . "IMPLICIT TURBULENE MODELING FOR HIGH REYNOLDS NUMBER FLOWS". United States. doi:. https://www.osti.gov/servlets/purl/788296.
@article{osti_788296,
title = {IMPLICIT TURBULENE MODELING FOR HIGH REYNOLDS NUMBER FLOWS},
author = {L. G. MARGOLIN and P. K. SMOLARIKIEWICZ and A. A. WYSZOGRODZKI},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 01 00:00:00 EDT 2001},
month = {Mon Oct 01 00:00:00 EDT 2001}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • We continue our investigation of the implicit turbulence modeling property of the nonoscillatory finite volume scheme MPDATA. We start by comparing MPDATA simulations of decaying turbulence in a triply periodic cube with analogous pseudospectral studies. In the regime of direct numerical simulation, MPDATA is shown to agree closely with the pseudospectral model. As viscosity is reduced, the two model results diverge. We study the MPDATA results in the inviscid limit, using a combination of mathematical analysis and computational experiment. We validate the inviscid MPDATA results as representing the turbulent flow in the limit of very high Reynolds number.
  • The classical 'turbulence problem' is narrowed down and redefined for scientific and engineering applications. From an application perspective, accurate computation of large-scale transport of the turbulent flows is needed. In this paper, a scaling analysis that allows for the large-scales of very high Reynolds number turbulent flows - to be handled by the available supercomputers is proposed. Current understanding of turbulence interactions of incompressible turbulence, which forms the foundation of our argument, is reviewed. Furthermore, the data redundancy in the inertial range is demonstrated. Two distinctive interactions, namely, the distance and near-grid interactions, are inspected for large-scale simulations. The distantmore » interactions in the subgrid scales in an inertial range can be effectively modelled by an eddy damping. The near-grid interactions must be carefully incorporated.« less
  • A general, user oriented computer program, called VNAP2, has been developed to calculate high Reynolds number, internal/external flows. VNAP2 solves the two-dimensional, time-dependent Navier-Stokes equations. The turbulence is modeled with either a mixing-length, a one transport equation, or a two transport equation model. Interior grid points are computed using the explicit MacCormack scheme with special procedures to speed up the calculation in the fine grid. All boundary conditions are calculated using a reference plane characteristic scheme with the viscous terms treated as source terms. Several internal, external, and internal/external flow calculations are presented.