THE WAVE CHARACTERISTICS OF TWO-PHASE FLOWS PREDICTED BY HLL SCHEME USING INTERFACIAL FRICTION TERMS

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Wave propagation in the two-phase flows has been numerically investigated. The waves have been generated by various means such as two-phase shock tube, pressure pulse, and void pulse wave. The six compressible two-fluid conservation laws with the interfacial friction terms are solved in the two fractional steps. The first PDE operator step makes use of analytic eigenvalues of an approximate Jacobian matrix in HLL scheme. The second source operator step makes use of the stiff ODE solver in a semi-implicit form. The waves in the two-phase flow field resolved by the present method have shown very small numerical diffusion. An assessment is made on the effect of interfacial friction terms included in the formulation.
Publisher
Taylor & Francis Inc
Issue Date
2010
Language
English
Article Type
Article
Keywords

APPROXIMATE JACOBIAN MATRIX; 2-FLUID MODEL; NUMERICAL-SIMULATION; MULTIPHASE FLOWS; PROPAGATION; RESOLUTION

Citation

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, v.58, no.5, pp.356 - 384

ISSN
1040-7782
DOI
10.1080/10407782.2010.505160
URI
http://hdl.handle.net/10203/96534
Appears in Collection
AE-Journal Papers(저널논문)
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