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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/14349

Title: On a Novel Dual-Grid Level-Set Method for Two-Phase Flow Simulation
Authors: GADA, VH
SHARMA, A
Keywords: OF-FLUID METHOD
FRONT-TRACKING METHOD
NUMERICAL-SIMULATION
SURFACE-TENSION
VOLUME-TRACKING
PHASE-CHANGE
COMPUTATIONS
FORMULATION
EQUATIONS
SOLIDIFICATION
Issue Date: 2011
Publisher: TAYLOR & FRANCIS INC
Citation: NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS,59(1)26-57
Abstract: 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.
URI: http://dx.doi.org/10.1080/10407790.2011.540956
http://dspace.library.iitb.ac.in/jspui/handle/100/14349
ISSN: 1040-7790
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