Paper Info
Title
A Multiphysics Approach to the Direct Numerical Simulation of Turbulent Flows on Parallel Computers
Abstract
The objective of the present work is the simultaneous solution of different physical problems on local memory parallel computers in the frame of the computational Direct Numerical Simulation (DNS) of turbulent flows. The background is the investigation of the influence of compressibility on the turbulence properties as the flow is subjected to a rapid isentropic expansion, as for the flow through a Laval-Nozzle. Our approach to the parallel treatment of such physically complex flow simulations can be described as a heterogeneous task-shearing problem. The DNS-part, i.e. the time accurate integration of the Navier Stokes equations, is solved on a chosen number of parallel processors, while a synthetic turbulence field is generated as a separate task on one separate processor to provide suitable boundary conditions for the DNS. Similar coupling-problems arise e.g. in the simulation of fluid / structure-dynamics interactions. The target computer of the present work is the Meiko CS-2.
Year
DOI
Venue
1996
10.1007/3-540-61142-8_603
HPCN Europe
Keywords
Field
DocType
turbulent flows,direct numerical simulation,parallel computers,multiphysics approach,boundary condition,turbulent flow,structural dynamics,parallel computer
Direct numerical simulation,Compressibility,Boundary value problem,Multiphysics,Computer science,Parallel computing,Turbulence,Flow (psychology),Computational science,Mechanics,Turbulence kinetic energy,Navier–Stokes equations
Conference
ISBN
Citations 
PageRank 
3-540-61142-8
0
0.34
References 
Authors
1
3
Name
Order
Citations
PageRank
Gunther Brenner131.61
Thilo Schönfeld200.34
Norberto Mangiavacchi352.03