Les of Flow Past a Square Cylinder Using Embedded Meshes

Nozawa, Kojiro; Tamura, Tetsuro

doi:10.1007/978-94-011-5624-0_39

Cited by 5 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…scheme for the convection term [10]. The correlation between our numerical results and theirs (il l ) / V o along the centreline appears satisfactory in the range of I.OD < x, < 3.0D (see Fig.…”

Section: Numerical Examplessupporting

confidence: 60%

“…The workability and validity of the present approach are demonstrated through flow around a rectangular cylinder at a Reynolds number of 22,000 as a test ease. The numerical results are also compared with experimental data by Lyn et al [5][6][7] an other existing numerical data [10].…”

Section: Governing Equanonsmentioning

confidence: 87%

“…Workshop on Direct and Large-Eddy Simulation in September 1996, the same flow was used and discussed in detail by Voke [8] through comparison between the experimental data and the computational simulations using various approaches [9,10]. In the light of the great variation in predictions of the simulations around the cylinder; Voke concluded that it was still not possible to make any recommendations apart from the obvious one that higher resolution is required at the walls.…”

Section: Governing Equanonsmentioning

confidence: 99%

See 2 more Smart Citations

Large Eddy Simulation of Flow around a Rectangular Cylinder Using the Finite Element Method

Miura

Kakuda

Tosafca

1999

International Journal of Computational Fluid Dynamics

View full text Add to dashboard Cite

In previous papers, we proposed finite element schemes based on the Petrov-Galerkin weak formulation using exponential weighting functions for solving accurately, and in a stable manner, the flow field of an incompressible viscous fluid. In this paper, we present the Petrov-Galerkin finite element scheme for turbulent flow fields based on large eddy simulation using the standard Smagorinsky model with the Van Driest damping function. The filtered incompressible Navier-Stokes equations are numerically integrated in time by using a fractional step strategy with second-order accurate Adams-Bashforth explicit differencing for both convection an diffusion terms. In order to evaluate more accurately a mass matrix, the well-known multi-pass algorithm was also adopted in this study. Numerical results obtained are compared through flow around a rectangular cylinder at Re = 22,000 with the experimental data and other existing numerical data.

show abstract

Section: Numerical Examplessupporting

confidence: 60%

Section: Governing Equanonsmentioning

confidence: 87%

Section: Governing Equanonsmentioning

confidence: 99%

See 1 more Smart Citation

Large Eddy Simulation of Flow around a Rectangular Cylinder Using the Finite Element Method

Miura

Kakuda

Tosafca

1999

International Journal of Computational Fluid Dynamics

View full text Add to dashboard Cite

show abstract

Heterogeneous CPU+GPU approaches for mesh refinement over Lattice‐Boltzmann simulations

Valero-Lara

Jansson

2016

Concurrency and Computation

View full text Add to dashboard Cite

Summary The use of mesh refinement in CFD is an efficient and widely used methodology to minimize the computational cost by solving those regions of high geometrical complexity with a finer grid. In this work, the author focuses on studying two methods, one based on Multi‐Domain and one based on Irregular meshing, to deal with mesh refinement over LBM simulations. The numerical formulation is presented in detail. It is proposed two approaches, homogeneous GPU and heterogeneous CPU+GPU, on each of the refinement methods. Obviously, the use of the two architectures, CPU and GPU, to compute the same problem involves more important challenges with respect to the homogeneous counterpart. These challenges and the strategies to deal with them are described in detail into the present work. We pay a particular attention to the differences among both methodologies/implementations in terms of programmability, memory management, and performance. The size of the refined sub‐domain has important consequences over both methodologies; however, the influence on Multi‐Domain approach is much higher. For instance, when dealing with a big refined sub‐domain, the Multi‐Domain approach achieves an important fall in performance with respect to other cases, where the size of the refined sub‐domain is smaller. Otherwise, using the Irregular approach, there is no such a dramatic fall in performance when increasing the size of the refined sub‐domain. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Flow Past a Square Cylinder: Test Case LES2

Voke

1997

Direct and Large-Eddy Simulation II

View full text Add to dashboard Cite

Les of Flow Past a Square Cylinder Using Embedded Meshes

Cited by 5 publications

References 2 publications

Large Eddy Simulation of Flow around a Rectangular Cylinder Using the Finite Element Method

Large Eddy Simulation of Flow around a Rectangular Cylinder Using the Finite Element Method

Heterogeneous CPU+GPU approaches for mesh refinement over Lattice‐Boltzmann simulations

Flow Past a Square Cylinder: Test Case LES2

Contact Info

Product

Resources

About