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High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation
Joint Authors
Lei, Jiang
Xie, Gong-Nan
Wang, Xian
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-22
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Direct numerical simulation (DNS) of a round jet in crossflow based on lattice Boltzmann method (LBM) is carried out on multi-GPU cluster.
Data parallel SIMT (single instruction multiple thread) characteristic of GPU matches the parallelism of LBM well, which leads to the high efficiency of GPU on the LBM solver.
With present GPU settings (6 Nvidia Tesla K20M), the present DNS simulation can be completed in several hours.
A grid system of 1.5 × 108 is adopted and largest jet Reynolds number reaches 3000.
The jet-to-free-stream velocity ratio is set as 3.3.
The jet is orthogonal to the mainstream flow direction.
The validated code shows good agreement with experiments.
Vortical structures of CRVP, shear-layer vortices and horseshoe vortices, are presented and analyzed based on velocity fields and vorticity distributions.
Turbulent statistical quantities of Reynolds stress are also displayed.
Coherent structures are revealed in a very fine resolution based on the second invariant of the velocity gradients.
American Psychological Association (APA)
Lei, Jiang& Wang, Xian& Xie, Gong-Nan. 2015. High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1075183
Modern Language Association (MLA)
Lei, Jiang…[et al.]. High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation. Mathematical Problems in Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1075183
American Medical Association (AMA)
Lei, Jiang& Wang, Xian& Xie, Gong-Nan. High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1075183
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1075183