Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows

Franco Rispoli, Pierpaolo Borrelli, Tayfun E. Tezduyar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Stabilized formulations are now widely used in the computation of turbulent flows. The Streamline-Upwind/Petrov-Galerkin (SUPG) and Pressure-Stabilizing/ Petrov-Galerkin (PSPG) methods are among the most popular stabilized formulations. The Discontinuity Capturing Directional Dissipation (DCDD) was first introduced as a complement to the SUPG and PSPG stabilizations for the computation of incompressible flows in the presence of sharp solution gradients. The DCDD stabilization takes effect where there is a sharp gradient in the velocity field and introduces dissipation in the direction of that gradient. The length scale used in defining the DCDD stabilization is based on the solution gradient. Here we describe how the DCDD stabilization, in combination with the SUPG and PSPG stabilizations, can be applied to computation of turbulent flows. We examine the similarity between the DCDD stabilization and a purely dissipative energy cascade model. To evaluate the performance of the DCDD stabilization, we compute as test problems a plane channel flow and an axial flow fan rotor.

Original languageEnglish
Title of host publicationECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering
Publication statusPublished - 2004
Externally publishedYes
EventEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyvaskyla
Duration: 2004 Jul 242004 Jul 28

Other

OtherEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
CityJyvaskyla
Period04/7/2404/7/28

Fingerprint

Turbulent Flow
Turbulent flow
Petrov-Galerkin
Dissipation
Discontinuity
Stabilization
Streamlines
Gradient
Petrov-Galerkin Method
Formulation
Channel Flow
Axial flow
Incompressible flow
Galerkin methods
Channel flow
Incompressible Flow
Length Scale
Rotor
Velocity Field
Test Problems

Keywords

  • Advective and diffusive length scales
  • DCDD stabilization
  • Stabilization parameters
  • Stabilized formulations
  • SUPG and PSPG stabilizations

ASJC Scopus subject areas

  • Artificial Intelligence
  • Applied Mathematics

Cite this

Rispoli, F., Borrelli, P., & Tezduyar, T. E. (2004). Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows. In ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering

Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows. / Rispoli, Franco; Borrelli, Pierpaolo; Tezduyar, Tayfun E.

ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering. 2004.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rispoli, F, Borrelli, P & Tezduyar, TE 2004, Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows. in ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering. European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, 04/7/24.
Rispoli F, Borrelli P, Tezduyar TE. Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows. In ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering. 2004
Rispoli, Franco ; Borrelli, Pierpaolo ; Tezduyar, Tayfun E. / Discontinuity-capturing directional dissipation (DCDD) in computation of turbulent flows. ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering. 2004.
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