On a Novel Dual-Grid Level-Set Method for Two-Phase Flow Simulation
DSpace at IIT Bombay
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Title |
On a Novel Dual-Grid Level-Set Method for Two-Phase Flow Simulation
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Creator |
GADA, VH
SHARMA, A |
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Subject |
OF-FLUID METHOD
FRONT-TRACKING METHOD NUMERICAL-SIMULATION SURFACE-TENSION VOLUME-TRACKING PHASE-CHANGE COMPUTATIONS FORMULATION EQUATIONS SOLIDIFICATION |
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Description |
In this work, a hypothesis is proposed for two-phase flow simulation: The number of grid points required for the grid-independent solution of the flow field is lesser than that required to capture the grid-independent interface. Based on this, a dual-grid level-set(LS) method (DGLSM) is proposed, where the LS and energy equations are solved on a uniform grid which is twice finer than the continuity and momentum equations. This novel grid arrangement is aimed at improving interface resolution with only a slight increase in computational time. Qualitative and quantitative results of the DGLSM are compared against analytical, experimental, and numerical results on three stringent test problems: dam break, Rayleigh-Taylor instability, and film boiling. The results show that the DGLSM is accurate and robust, even for surface tension-dominant flows. Moreover, the hypothesis is corroborated by showing that the DGLSM is nearly as accurate as the completely refined traditional LS method at substantially less computational expense.
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Publisher |
TAYLOR & FRANCIS INC
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Date |
2012-06-26T09:59:27Z
2012-06-26T09:59:27Z 2011 |
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Type |
Article
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Identifier |
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS,59(1)26-57
1040-7790 http://dx.doi.org/10.1080/10407790.2011.540956 http://dspace.library.iitb.ac.in/jspui/handle/100/14349 |
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Language |
English
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