A numerical study of effect of initial condition on large eddy simulation of thermal plume
(2003) In Numerical Heat Transfer Part B: Fundamentals 43(2). p.167-178- Abstract
- Large eddy simulations of thermal plume in two different scenarios have been carried out using a self-developed parallel computational fluid dynamics (CFD) code, SMAFS (Smoke Movement And Flame Spread), with subgrid-scale turbulence modeled using the Smagorinsky model. Two different initial conditions were used in the simulations, and the results were compared to show that the initial condition has a significant effect on the prediction of the plume's evolution behavior. The filtered governing equations were discretized using the finite-volume method, with the variables at the cell faces in the finite-volume discrete equations approximated by a second-order bounded QUICK scheme and the diffusion term computed based on the central... (More)
- Large eddy simulations of thermal plume in two different scenarios have been carried out using a self-developed parallel computational fluid dynamics (CFD) code, SMAFS (Smoke Movement And Flame Spread), with subgrid-scale turbulence modeled using the Smagorinsky model. Two different initial conditions were used in the simulations, and the results were compared to show that the initial condition has a significant effect on the prediction of the plume's evolution behavior. The filtered governing equations were discretized using the finite-volume method, with the variables at the cell faces in the finite-volume discrete equations approximated by a second-order bounded QUICK scheme and the diffusion term computed based on the central difference scheme. All the computations were explicitly time-marched, with the momentum equations solved based on a second-order fractional-step Adams-Bashford scheme and the enthalpy computed using a second-order Runge-Kutta method. The Poisson equation for pressure from the continuity equation was solved using a multigrid solver. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/320235
- author
- Yan, Zhenghua LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Numerical Heat Transfer Part B: Fundamentals
- volume
- 43
- issue
- 2
- pages
- 167 - 178
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000180223100004
- scopus:0242709821
- ISSN
- 1040-7790
- DOI
- 10.1080/713836173
- language
- English
- LU publication?
- yes
- id
- 236a3f56-6775-4d2d-9c7f-c0410181ba3b (old id 320235)
- date added to LUP
- 2016-04-01 16:40:31
- date last changed
- 2022-01-28 21:17:47
@article{236a3f56-6775-4d2d-9c7f-c0410181ba3b, abstract = {{Large eddy simulations of thermal plume in two different scenarios have been carried out using a self-developed parallel computational fluid dynamics (CFD) code, SMAFS (Smoke Movement And Flame Spread), with subgrid-scale turbulence modeled using the Smagorinsky model. Two different initial conditions were used in the simulations, and the results were compared to show that the initial condition has a significant effect on the prediction of the plume's evolution behavior. The filtered governing equations were discretized using the finite-volume method, with the variables at the cell faces in the finite-volume discrete equations approximated by a second-order bounded QUICK scheme and the diffusion term computed based on the central difference scheme. All the computations were explicitly time-marched, with the momentum equations solved based on a second-order fractional-step Adams-Bashford scheme and the enthalpy computed using a second-order Runge-Kutta method. The Poisson equation for pressure from the continuity equation was solved using a multigrid solver.}}, author = {{Yan, Zhenghua}}, issn = {{1040-7790}}, language = {{eng}}, number = {{2}}, pages = {{167--178}}, publisher = {{Taylor & Francis}}, series = {{Numerical Heat Transfer Part B: Fundamentals}}, title = {{A numerical study of effect of initial condition on large eddy simulation of thermal plume}}, url = {{http://dx.doi.org/10.1080/713836173}}, doi = {{10.1080/713836173}}, volume = {{43}}, year = {{2003}}, }