Numerical Simulation of Compressible Two-Phase Condensing Flows
Publish place: Journal of Applied Fluid Mechanics، Vol: 9، Issue: 2
Publish Year: 1395
Type: Journal paper
Language: English
View: 254
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Document National Code:
JR_JAFM-9-2_036
Index date: 25 January 2022
Numerical Simulation of Compressible Two-Phase Condensing Flows abstract
In the present paper, the hybrid AUSM-van Leer scheme is extended to solve the governing equations of twophase condensing flows. The method of moments with the classical homogeneous nucleation theory is used to model the non-equilibrium condensation phenomenon. Firstly, the hybrid method is validated using two test cases (i.e. Laval nozzle and rotor-tip cascade) and the results are compared with the MacCormack method. Then the hybrid method is used to solve two other problems (i.e. wavy channel and VKI stage). Based on the numerical results of the paper, the hybrid AUSM-van Leer scheme is an accurate method to simulate twophase transonic flows with nucleation. If the super cooling degree reaches to its maximum value, the nonequilibrium condensation begins and wetness fraction increases suddenly. Also across a shock the wetness fraction decreases due to evaporation of the droplets.
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Numerical Simulation of Compressible Two-Phase Condensing Flows authors
H. Bagheri Esfe
Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), ۱۵۸۷۵- ۴۴۱۳Tehran, Iran.
M. J. Kermani
Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), ۱۵۸۷۵- ۴۴۱۳Tehran, Iran.
M. Saffar Avval
Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), ۱۵۸۷۵- ۴۴۱۳Tehran, Iran.