Numerical study on turbulent mixed convection in a vertical plane channel using hybrid RANS/LES and LES models

Puxian Ding; Shuangfeng Wang; Kai Chen

doi:10.1016/j.cjche.2019.04.007

Your Location：

Home >

Browse articles >

Numerical study on turbulent mixed convection in a vertical plane channel using hybrid RANS/LES and LES models

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Numerical study on turbulent mixed convection in a vertical plane channel using hybrid RANS/LES and LES models
- Chinese Journal of Chemical Engineering Vol. 28, Issue 1, Pages: 1-8(2020)
- Affiliations：
  
  Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology,Guangzhou,China,510640
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.04.007
  CLC：
- Published：2020
- Accepted：
Scan QR Code
Puxian Ding, Shuangfeng Wang, Kai Chen. Numerical study on turbulent mixed convection in a vertical plane channel using hybrid RANS/LES and LES models[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 1-8.
DOI：

Puxian Ding, Shuangfeng Wang, Kai Chen. Numerical study on turbulent mixed convection in a vertical plane channel using hybrid RANS/LES and LES models[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 1-8. DOI： 10.1016/j.cjche.2019.04.007.

摘要

Abstract

Two Delayed-Detached Eddy Simulation (DDES) models

and a Large-Eddy Simulation (LES) model are used to investigate the turbulent flows and mixed convection between a hot plate and a cold plate

via

the software FLUENT. The two DDES models include Production-limited DDES (PL-DDES) and Improved DDES (IDDES) models. The Wall-Adapting Local Eddy-Viscosity (WALE) model is the used LES model. The numerical computations are performed at Reynolds number

=4494 and different Richardson numbers

=0.025

0.048

0.1. The comparing data is from the Direct Numerical Simulation (DNS) at

=4494 and

=0.048. The comparison reveals that the two DDES models have better performance in predicting time-averaged parameters than the WALE model in the aiding flow. The best predicted time-averaged results are obtained by the PL-DDES model in the opposing flow. Furthermore

the results of different

obtained by the PL-DDES model agree well with the DNS data.

关键词

Keywords

references

Views

142

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Non-phosgene synthesis processes of isocyanates: One-step and two-step routes

Unraveling the methane decomposition mechanism on Fe-Ni-Ca-O composite catalysts: A combined density functional theory and microdynamic study

CFD-PBM simulation of liquid-liquid dispersions in an industrial pulsed disc and doughnut column with directly measured breakup and coalescence kernels

COS generation behavior during desulfurization for H2S over zeolite in simulated blast furnace gas

Experimental and numerical studies of holdup and velocity behavior for inclined bubbly oil-water pipe flows

Related Author

No data

Related Institution

No data

⁰