TY - JOUR
T1 - Finite element computation of turbulent flows with the discontinuity-capturing directional dissipation (DCDD)
AU - Rispoli, Franco
AU - Corsini, Alessandro
AU - Tezduyar, Tayfun E.
N1 - Funding Information:
Partial support for this work was provided by the Italian Ministry of University and Academic Research, under the Visiting Professor Program, 2004–2005. The third author was supported by the US Army Natick Soldier Center and NASA Johnson Space Center. We thank Dr. Pierpaolo Borrelli for his contributions in the earlier stages of this work.
PY - 2007/1
Y1 - 2007/1
N2 - The streamline-upwind/Petrov-Galerkin (SUPG) and pressure-stabilizing/Petrov-Galerkin (PSPG) methods are among the most popular stabilized formulations in finite element computation of flow problems. 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 problem a plane channel flow at friction Reynolds number Reτ = 180.
AB - The streamline-upwind/Petrov-Galerkin (SUPG) and pressure-stabilizing/Petrov-Galerkin (PSPG) methods are among the most popular stabilized formulations in finite element computation of flow problems. 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 problem a plane channel flow at friction Reynolds number Reτ = 180.
UR - http://www.scopus.com/inward/record.url?scp=33750358053&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750358053&partnerID=8YFLogxK
U2 - 10.1016/j.compfluid.2005.07.004
DO - 10.1016/j.compfluid.2005.07.004
M3 - Article
AN - SCOPUS:33750358053
VL - 36
SP - 121
EP - 126
JO - Computers and Fluids
JF - Computers and Fluids
SN - 0045-7930
IS - 1
ER -