2014
DOI: 10.7566/jpscp.1.015051
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Abstract: It is well-known that conventional (one-pressure) two-fluid model equation system is mathematically ill-posed as an initial-value problem, since Lyczkowski et al. [1] pointed out that it has complex eigenvalues. Numerical solution resulted from the ill-posed equation system may instantaneously be amplified at least in the limit of short wavelength, and then it has no physical meaning. To improve this defect, numerical simulations with low accuracy of bubbly flows have been conducted by adopting a rough grid…

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