A hybrid scheme for computing incompressible two-phase flows |
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Authors: | Zhou Jun Cai Li and Zhou Feng-Qi |
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Institution: | Institute of the Precision Guidance and Control,
Northwestern Polytechnical University, Xi'an 710072,
China |
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Abstract: | We propose a hybrid scheme for computations of incompressible
two-phase flows. The incompressible constraint has been replaced by
a pressure Poisson-like equation and then the pressure is updated by
the modified marker and cell method. Meanwhile, the moment equations
in the incompressible Navier--Stokes equations are solved by our
semi-discrete Hermite central-upwind scheme, and the interface
between the two fluids is considered to be continuous and is
described implicitly as the 0.5 level set of a smooth function being
a smeared out Heaviside function. It is here named the hybrid
scheme. Some numerical experiments are successfully carried out,
which verify the desired efficiency and accuracy of our hybrid
scheme. |
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Keywords: | two-phase flow incompressible
flow numerical method |
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