NUMERICAL SOLUTION OF LIQUID- VAPOR FLOW IN VARIABLE CROSS- SECTION DUCTS BY USING FLUX- VECTOR SPLITTING METHOD

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NOURI A.; SHAFIEI G. A.

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Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2016 | Volume:48 | Issue:1 Page(s): 1-4

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Title

NUMERICAL SOLUTION OF LIQUID- VAPOR FLOW IN VARIABLE CROSS- SECTION DUCTS BY USING FLUX- VECTOR SPLITTING METHOD

Author(s)

NOURI A. | SHAFIEI G. A. | Issue Writer Certificate

Keywords

TWO-PHASE FLOWQ2

HOMOGENEOUS EQUILIBRIUM MODELQ2

CONVERGING-DIVERGING NOZZLEQ2

FLUX-VECTOR SPLITTING METHODQ2

Abstract

The purpose of this study is to numerically simulate water-vapor TWO-PHASE FLOW in ducts with variable cross-section. The HOMOGENEOUS EQUILIBRIUM MODEL is used to describe the two-phase in a CONVERGING-DIVERGING NOZZLE with the inlet vapor quality in the rage of 0.05<x<0.8 and back pressure in the range of Pb>0.1 atm. The flow passage is assumed to be adiabatic and frictional. Fluid properties are calculated basis on the thermodynamic tables. The governing equations are solved by FLUX-VECTOR SPLITTING METHOD explicitly. The numerical results indicate that the vapor quality decreases along the nozzle before the location of the shock wave and it increases after that. In other words, the behavior of the nozzle depends on the inlet vapor quality. Therefore, the condensing behavior of the nozzle changes to the evaporating behavior when the flow passes over the shock wave with the inlet vapor quality greater than about 0.5. In addition, the pressure distribution along the nozzle with the inlet vapor quality of 0.73 is in a good agreement with the experimental data.

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APA: Copy

NOURI, A., & SHAFIEI G., A.. (2016). NUMERICAL SOLUTION OF LIQUID- VAPOR FLOW IN VARIABLE CROSS- SECTION DUCTS BY USING FLUX- VECTOR SPLITTING METHOD. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 48(1), 1-4. SID. https://sid.ir/paper/165955/en

Vancouver: Copy

NOURI A., SHAFIEI G. A.. NUMERICAL SOLUTION OF LIQUID- VAPOR FLOW IN VARIABLE CROSS- SECTION DUCTS BY USING FLUX- VECTOR SPLITTING METHOD. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2016;48(1):1-4. Available from: https://sid.ir/paper/165955/en

IEEE: Copy

A. NOURI, and A. SHAFIEI G., “NUMERICAL SOLUTION OF LIQUID- VAPOR FLOW IN VARIABLE CROSS- SECTION DUCTS BY USING FLUX- VECTOR SPLITTING METHOD,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 48, no. 1, pp. 1–4, 2016, [Online]. Available: https://sid.ir/paper/165955/en

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