article · Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering · 1998
Two parallel plane jets: Comparison of the performance of three turbulence models
Cited by 46Abstract and details only
Abstract
There have been many investigations in the literature to examine the performance of different turbulence models in predicting flow over backward-facing steps where the flow is bounded by solid boundaries. However, the evaluation of different turbulence models in predicting free shear layers with no solid boundaries, such as two parallel plane jets, is limited. In this paper, the velocity field of two parallel plane jets with a small nozzle separation ratio of s/ w = 4:25 determined by laser Doppler anemometry (LDA) is first presented. These experimental results are used to examine the performance of three turbulence models (i.e. k - ɛ, RNG k - ɛ and Reynolds stress) in predicting this flow field. The effects of computational domain size, grid resolution and different discretization schemes on the predictions are discussed. The existence of a recirculation flow region, a merging region and a combined region in the two parallel plane jet configuration has been predicted qualitatively by all three turbulence models. On the other hand, quantitative agreement between predictions and measurements varied by as much as 18 per cent for the merging length while the jet spread in the outer shear layer has been substantially under- predicted by all three models.
Cite this paper
Lai, J. C. S., & Nasr, A. (1998). Two parallel plane jets: Comparison of the performance of three turbulence models. Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering, 212(6), 379–391. https://doi.org/10.1243/0954410981532351
Lai, Joseph C. S., and A. Nasr. “Two parallel plane jets: Comparison of the performance of three turbulence models.” Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering, vol. 212, no. 6, 1998, pp. 379–91, https://doi.org/10.1243/0954410981532351.
Lai, Joseph C. S., and A. Nasr. 1998. “Two parallel plane jets: Comparison of the performance of three turbulence models.” Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering 212 (6): 379–91. https://doi.org/10.1243/0954410981532351.
Lai, J.C.S. and Nasr, A. (1998) ‘Two parallel plane jets: Comparison of the performance of three turbulence models’, Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering, 212(6), pp. 379–391. Available at: https://doi.org/10.1243/0954410981532351.
@article{lai1998parallel,
title = {{Two parallel plane jets: Comparison of the performance of three turbulence models}},
author = {Lai, Joseph C. S. and Nasr, A.},
journal = {Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering},
volume = {212},
number = {6},
pages = {379--391},
year = {1998},
doi = {10.1243/0954410981532351}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.