Numerical study of swirling impinging jets with heat-transfer
(2004) ASME Heat Transfer/Fluids Engineering Summer Conference, 2004- Abstract
- This paper deals with numerical simulations of circular impinging jets with heat transfer, by means of Large Eddy Simulation (LES). The LES code uses higher order finite-differences on staggered Cartesian non-uniform grids. The current LES have the potential of dealing with transition as well as providing data on details of larger scale structures, statistical correlations and turbulent spectral content. The impinging circular jet has a nozzle-to-plate spacing ranging from 0.5 to 2 nozzle diameters and the Reynolds number is 20000. Three different swirl numbers have been considered, ranging from non-swirling to strongly swirling flow. From the LES results the transition process in the jet is clearly detected. Swirling flow strongly... (More)
- This paper deals with numerical simulations of circular impinging jets with heat transfer, by means of Large Eddy Simulation (LES). The LES code uses higher order finite-differences on staggered Cartesian non-uniform grids. The current LES have the potential of dealing with transition as well as providing data on details of larger scale structures, statistical correlations and turbulent spectral content. The impinging circular jet has a nozzle-to-plate spacing ranging from 0.5 to 2 nozzle diameters and the Reynolds number is 20000. Three different swirl numbers have been considered, ranging from non-swirling to strongly swirling flow. From the LES results the transition process in the jet is clearly detected. Swirling flow strongly influences the development of the jet. The wall heat transfer rates become obstructed, even though the turbulence level increases. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/834954
- author
- Hällqvist, Tomas and Fuchs, Laszlo LU
- organization
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- [Host publication title missing]
- publisher
- American Soceity of Mechanical Engineers
- conference name
- ASME Heat Transfer/Fluids Engineering Summer Conference, 2004
- conference location
- Charlotte, North Carolina, United States
- conference dates
- 2004-07-11 - 2014-07-15
- external identifiers
-
- other:ASME paper no. HT-FED2004-56478
- scopus:21544446389
- language
- English
- LU publication?
- yes
- id
- 7ec65103-4b03-4ad8-9a5e-cb21c632d9f3 (old id 834954)
- date added to LUP
- 2016-04-04 11:12:20
- date last changed
- 2022-01-29 21:31:01
@inproceedings{7ec65103-4b03-4ad8-9a5e-cb21c632d9f3,
abstract = {{This paper deals with numerical simulations of circular impinging jets with heat transfer, by means of Large Eddy Simulation (LES). The LES code uses higher order finite-differences on staggered Cartesian non-uniform grids. The current LES have the potential of dealing with transition as well as providing data on details of larger scale structures, statistical correlations and turbulent spectral content. The impinging circular jet has a nozzle-to-plate spacing ranging from 0.5 to 2 nozzle diameters and the Reynolds number is 20000. Three different swirl numbers have been considered, ranging from non-swirling to strongly swirling flow. From the LES results the transition process in the jet is clearly detected. Swirling flow strongly influences the development of the jet. The wall heat transfer rates become obstructed, even though the turbulence level increases.}},
author = {{Hällqvist, Tomas and Fuchs, Laszlo}},
booktitle = {{[Host publication title missing]}},
language = {{eng}},
publisher = {{American Soceity of Mechanical Engineers}},
title = {{Numerical study of swirling impinging jets with heat-transfer}},
year = {{2004}},
}