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Hybrid RANS/LES of plane impinging jets on a flat plate at small nozzle-plate distances

Slawomir Kubacki (UGent) , Jacek Rokicki, Erik Dick (UGent) , Joris Degroote (UGent) and Jan Vierendeels (UGent)
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Abstract
A k-ω based hybrid RANS/LES (Reynolds Averaged Navier Stokes/Large Eddy Simulation) model is tested for simulation of plane impinging jets at various nozzle-plate distances (H/B, where H is the distance and B is the slot width) and various Reynolds numbers (based on the slot width and the velocity in the symmetry plane). The studied combinations are H/B=2 for Re=10000, H/B=4 for Re=18000 and H/B=9.2 for Re=20000. The focus is on small distance of the nozzle exit to the plate. This means for impact of the jet onto the plate before complete mixing of the shear layers. The centre of the impact zone is then in laminar state and the developing boundary layer on the plate undergoes transition to turbulent state. The transitional flow cannot be correctly simulated with a RANS turbulence model, but we will demonstrate that a hybrid model is basically correct.
Keywords
turbulence modelling, hybrid RANS/LES, Plane impinging jets

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MLA
Kubacki, Slawomir et al. “Hybrid RANS/LES of Plane Impinging Jets on a Flat Plate at Small Nozzle-plate Distances.” 20th Fluid Mechanics Conference, Proceedings. Ed. Tadeusz Chmielniak & Wlodzimierz Wroblewski. Gliwice, Poland: Silesian University of Technology, 2012. Print.
APA
Kubacki, Slawomir, Rokicki, J., Dick, E., Degroote, J., & Vierendeels, J. (2012). Hybrid RANS/LES of plane impinging jets on a flat plate at small nozzle-plate distances. In T. Chmielniak & W. Wroblewski (Eds.), 20th Fluid Mechanics Conference, Proceedings. Presented at the XX Fluid Mechanics Conference (KKMP - 2012), Gliwice, Poland: Silesian University of Technology.
Chicago author-date
Kubacki, Slawomir, Jacek Rokicki, Erik Dick, Joris Degroote, and Jan Vierendeels. 2012. “Hybrid RANS/LES of Plane Impinging Jets on a Flat Plate at Small Nozzle-plate Distances.” In 20th Fluid Mechanics Conference, Proceedings, ed. Tadeusz Chmielniak and Wlodzimierz Wroblewski. Gliwice, Poland: Silesian University of Technology.
Chicago author-date (all authors)
Kubacki, Slawomir, Jacek Rokicki, Erik Dick, Joris Degroote, and Jan Vierendeels. 2012. “Hybrid RANS/LES of Plane Impinging Jets on a Flat Plate at Small Nozzle-plate Distances.” In 20th Fluid Mechanics Conference, Proceedings, ed. Tadeusz Chmielniak and Wlodzimierz Wroblewski. Gliwice, Poland: Silesian University of Technology.
Vancouver
1.
Kubacki S, Rokicki J, Dick E, Degroote J, Vierendeels J. Hybrid RANS/LES of plane impinging jets on a flat plate at small nozzle-plate distances. In: Chmielniak T, Wroblewski W, editors. 20th Fluid Mechanics Conference, Proceedings. Gliwice, Poland: Silesian University of Technology; 2012.
IEEE
[1]
S. Kubacki, J. Rokicki, E. Dick, J. Degroote, and J. Vierendeels, “Hybrid RANS/LES of plane impinging jets on a flat plate at small nozzle-plate distances,” in 20th Fluid Mechanics Conference, Proceedings, Gliwice, Poland, 2012.
@inproceedings{3009437,
  abstract     = {A k-ω based hybrid RANS/LES (Reynolds Averaged Navier Stokes/Large Eddy Simulation) model is tested for simulation of plane impinging jets at various nozzle-plate distances (H/B, where H is the distance and B is the slot width) and various Reynolds numbers (based on the slot width and the velocity in the symmetry plane). The studied combinations are H/B=2 for Re=10000, H/B=4 for Re=18000 and H/B=9.2 for Re=20000. The focus is on small distance of the nozzle exit to the plate. This means for impact of the jet onto the plate before complete mixing of the shear layers. The centre of the impact zone is then in laminar state and the developing boundary layer on the plate undergoes transition to turbulent state. The transitional flow cannot be correctly simulated with a RANS turbulence model, but we will demonstrate that a hybrid model is basically correct.},
  author       = {Kubacki, Slawomir and Rokicki, Jacek and Dick, Erik and Degroote, Joris and Vierendeels, Jan},
  booktitle    = {20th Fluid Mechanics Conference, Proceedings},
  editor       = {Chmielniak, Tadeusz and Wroblewski, Wlodzimierz},
  isbn         = {9788392734086},
  keywords     = {turbulence modelling,hybrid RANS/LES,Plane impinging jets},
  language     = {eng},
  location     = {Gliwice, Poland},
  pages        = {17},
  publisher    = {Silesian University of Technology},
  title        = {Hybrid RANS/LES of plane impinging jets on a flat plate at small nozzle-plate distances},
  year         = {2012},
}