STUDYING WALL SHEAR LAYER IN ULTRASONIC CAVITY FLOW USING NUMERICAL SIMULATION

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MIRMOHAMMADI ALI; ROSTAIY SAEED

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: FUEL AND COMBUSTION Year:2018 | Volume:11 | Issue:1 Page(s): 69-82

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Information Journal Paper

Title

STUDYING WALL SHEAR LAYER IN ULTRASONIC CAVITY FLOW USING NUMERICAL SIMULATION

Author(s)

MIRMOHAMMADI ALI | ROSTAIY SAEED | Issue Writer Certificate

Keywords

RAM- JETQ1

SCRAM- JETQ1

COMBUSTION STABILITYQ1

SST-K-ε MODELQ1

CAVITY SHEAR LAYERQ1

Abstract

Ultrasonic RAM- JET and ScRAM- JET are high technology engines in aerospace industries. ScRAM- JET engines can achieve higher velocity than the common Ram-Jet engines, because the combustion in these engines occur in ultrasonic velocity. Combustion in ultrasonic velocity needs stability. Since cavities are very important in the stability of ultrasonic reacting flows, different parameters affecting the wall shear layer in ultrasonic cavity flow is investigated in this paper using numerical simulations with various turbulence modeling approaches. Firstly, the best turbulence model in accuracy and speed is introduced for wall shear layer solution in ultrasonic cavity flow. Then, the solution is used for various cavity wall angles and the results are presented, that show the SST-k-e turbulence model is the best model in accuracy and speed for the problem under investigation. In addition, the results of different angles for back normal wall shows that in a cavity with steep angle, the temperature increases sharply. Therefore, the temperature is a very important parameter in indicating the value of the angle and the limitation of the melting point may affect the angle selection.

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APA: Copy

MIRMOHAMMADI, ALI, & ROSTAIY, SAEED. (2018). STUDYING WALL SHEAR LAYER IN ULTRASONIC CAVITY FLOW USING NUMERICAL SIMULATION. FUEL AND COMBUSTION, 11(1 ), 69-82. SID. https://sid.ir/paper/138475/en

Vancouver: Copy

MIRMOHAMMADI ALI, ROSTAIY SAEED. STUDYING WALL SHEAR LAYER IN ULTRASONIC CAVITY FLOW USING NUMERICAL SIMULATION. FUEL AND COMBUSTION[Internet]. 2018;11(1 ):69-82. Available from: https://sid.ir/paper/138475/en

IEEE: Copy

ALI MIRMOHAMMADI, and SAEED ROSTAIY, “STUDYING WALL SHEAR LAYER IN ULTRASONIC CAVITY FLOW USING NUMERICAL SIMULATION,” FUEL AND COMBUSTION, vol. 11, no. 1 , pp. 69–82, 2018, [Online]. Available: https://sid.ir/paper/138475/en

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