The GPU CABARET method for solving the Navier–Stokes equations coupled with the Ffowcs Williams–Hawkings scheme for far-field noise predictions is applied for conditions of the NASA SHJAR experiment corresponding to Set Point 3 and 7 in accordance with Tanna's classification. The questions addressed include the sensitivity of the flow and noise spectra solutions to the grid resolution and the inflow condition at the nozzle exit. To study the grid sensitivity, several “hand-made” multi-block curvilinear grids are considered along with a simple hanging-nodes-type grid that was automatically generated with OpenFOAM, whose solutions are cross-verified. To study the effect of the inflow jet condition, the flow and noise solutions based on the laminar inflow condition for Set Point 7 case are compared with the same based on modifying the interior nozzle geometry with a turbulence grid to generate the initial unsteadiness inside the nozzle so that both the centerline velocity fluctuations and the jet Mach number at the nozzle exit are preserved in accordance with the experiment. The numerical solutions obtained are compared with the experimental data and reference LES solutions available in the literature.
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Anton P. Markesteijn 1, 2; Sergey A. Karabasov 1, 2
@article{CRMECA_2018__346_10_948_0, author = {Anton P. Markesteijn and Sergey A. Karabasov}, title = {CABARET solutions on graphics processing units for {NASA} jets: {Grid} sensitivity and unsteady inflow condition effect}, journal = {Comptes Rendus. M\'ecanique}, pages = {948--963}, publisher = {Elsevier}, volume = {346}, number = {10}, year = {2018}, doi = {10.1016/j.crme.2018.07.004}, language = {en}, }
TY - JOUR AU - Anton P. Markesteijn AU - Sergey A. Karabasov TI - CABARET solutions on graphics processing units for NASA jets: Grid sensitivity and unsteady inflow condition effect JO - Comptes Rendus. Mécanique PY - 2018 SP - 948 EP - 963 VL - 346 IS - 10 PB - Elsevier DO - 10.1016/j.crme.2018.07.004 LA - en ID - CRMECA_2018__346_10_948_0 ER -
%0 Journal Article %A Anton P. Markesteijn %A Sergey A. Karabasov %T CABARET solutions on graphics processing units for NASA jets: Grid sensitivity and unsteady inflow condition effect %J Comptes Rendus. Mécanique %D 2018 %P 948-963 %V 346 %N 10 %I Elsevier %R 10.1016/j.crme.2018.07.004 %G en %F CRMECA_2018__346_10_948_0
Anton P. Markesteijn; Sergey A. Karabasov. CABARET solutions on graphics processing units for NASA jets: Grid sensitivity and unsteady inflow condition effect. Comptes Rendus. Mécanique, Volume 346 (2018) no. 10, pp. 948-963. doi : 10.1016/j.crme.2018.07.004. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2018.07.004/
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