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## CFD Analysis of a Backward Facing Step Flows

#### Thabit Thabit [1] , Senan Thabet [2] , Yaser Jasim [3]

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This paper introduces a lot of situations about the Computational Fluid Dynamics (CFD) analysis of backward facing step flows. The main point of this paper is incompressible flow in a backward step, measured by drivers and Seegmiller experiments.

The researchers concluded that validation parameters chosen for the study are the locations of the surface hydrostatic pressure and the reattachment compression impact downstream of the step. The surface static pressures predicted by WIND using a two-equation SST turbulence model are shown below. This figure includes a comparison of earlier versions of NPARC and WIND with experimental data. The WIND code slightly overestimates the surface pressure drop from the free flow value to about 5% of the corner value of the separation area (base pressure). This may be due to the fact that the transition point is experimentally unknown and not accurately predicted by the natural transition of the turbulence model. However, this over-forecasting predicts the previous pressure drop closer to the experimental results than the AEDC PARC, TUFF, and GASP codes using the Baldwin Lomax, KE, and Cebeci, and Smith models, respectively. The rest of the forecast for WIND pressure is in good agreement with the forecast pressure.

CFD, Turbulence, Backward-Step
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• Thabet, Senan, and Thabit, Thabit H. (2018). CFD Simulation of the Air Flow around a Car Model (Ahmed Body), International Journal of Scientific and Research Publications, Vol.8, No.7, pp.517-525.
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Birincil Dil en Mühendislik, Makine Volumes Orcid: 0000-0003-2033-6110Yazar: Thabit ThabitKurum: Ninevah UniversityÜlke: Iraq Yazar: Senan Thabet (Sorumlu Yazar)Kurum: University of South WalesÜlke: United Kingdom Yazar: Yaser JasimKurum: Cihan UniversityÜlke: Iraq
 Bibtex @araştırma makalesi { ijastech447973, journal = {International Journal of Automotive Science and Technology}, issn = {}, eissn = {2587-0963}, address = {Otomotiv Mühendisleri Derneği}, year = {2018}, volume = {2}, pages = {10 - 16}, doi = {10.30939/ijastech..447973}, title = {CFD Analysis of a Backward Facing Step Flows}, key = {cite}, author = {Jasim, Yaser and Thabit, Thabit and Thabet, Senan} } APA Thabit, T , Thabet, S , Jasim, Y . (2018). CFD Analysis of a Backward Facing Step Flows. International Journal of Automotive Science and Technology, 2 (3), 10-16. DOI: 10.30939/ijastech..447973 MLA Thabit, T , Thabet, S , Jasim, Y . "CFD Analysis of a Backward Facing Step Flows". International Journal of Automotive Science and Technology 2 (2018): 10-16 Chicago Thabit, T , Thabet, S , Jasim, Y . "CFD Analysis of a Backward Facing Step Flows". International Journal of Automotive Science and Technology 2 (2018): 10-16 RIS TY - JOUR T1 - CFD Analysis of a Backward Facing Step Flows AU - Thabit Thabit , Senan Thabet , Yaser Jasim Y1 - 2018 PY - 2018 N1 - doi: 10.30939/ijastech..447973 DO - 10.30939/ijastech..447973 T2 - International Journal of Automotive Science and Technology JF - Journal JO - JOR SP - 10 EP - 16 VL - 2 IS - 3 SN - -2587-0963 M3 - doi: 10.30939/ijastech..447973 UR - http://dx.doi.org/10.30939/ijastech..447973 Y2 - 2018 ER - EndNote %0 International Journal of Automotive Science and Technology CFD Analysis of a Backward Facing Step Flows %A Thabit Thabit , Senan Thabet , Yaser Jasim %T CFD Analysis of a Backward Facing Step Flows %D 2018 %J International Journal of Automotive Science and Technology %P -2587-0963 %V 2 %N 3 %R doi: 10.30939/ijastech..447973 %U 10.30939/ijastech..447973 ISNAD Thabit, Thabit , Thabet, Senan , Jasim, Yaser . "CFD Analysis of a Backward Facing Step Flows". International Journal of Automotive Science and Technology 2 / 3 (Eylül 2018): 10-16. http://dx.doi.org/10.30939/ijastech..447973