Abstract
Shock tube problem of a van der Waals fluid with a relaxation model was investigated. In the limit of relaxation parameter tending towards zero, this model yields a specific Riemann solver. Relaxing and relaxed schemes were derived. For an incident shock in a fixed tube, numerical simulations show convergence toward the Riemann solution in one space dimension. Impact of parameters was studied theoretically and numerically. For certain initial shock profiles, nonclassical reflecting wave was observed. In two space dimensions, the effect of curved wave fronts was studied, and some interesting wave patterns were exposed.
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Communicated by HUANG Yong-nian
Project supported by the Major State Basic Research Project “Nonlinear Science” of China (No. G2000077305) and the National Natural Science Foundation of China (Nos. 10002002 and 90407021)
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Wang, P., Tang, Sq. Numerical study of dynamic phase transitions in shock tube. Appl Math Mech 28, 921–929 (2007). https://doi.org/10.1007/s10483-007-0709-z
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DOI: https://doi.org/10.1007/s10483-007-0709-z