High Performance Computation of a Jet in Crossflow by Lattice Boltzmann Based Parallel Direct Numerical Simulation

المؤلفون المشاركون

Lei, Jiang
Xie, Gong-Nan
Wang, Xian

المصدر

Mathematical Problems in Engineering

العدد

المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2015-04-22

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

هندسة مدنية

الملخص 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.

نمط استشهاد جمعية علماء النفس الأمريكية (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

نمط استشهاد الجمعية الأمريكية للغات الحديثة (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

نمط استشهاد الجمعية الطبية الأمريكية (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

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1075183