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http://dx.doi.org/10.3795/KSME-B.2005.29.5.609

Modified SIMPLE Algorithm for the Numerical Analysis of Incompressible Flows with Free Surface  

Hong Chun Pyo (연세대학교 금속시스템공학과)
Lee Jin ho (연세대학교 기계공학부)
Mok Jin ho (Nano Cast Korea)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.5, 2005 , pp. 609-616 More about this Journal
Abstract
While the SIMPLE algorithm is most widely used for the simulations of flow phenomena that take place in the industrial equipments or the manufacturing processes, it is less adopted for the simulations of the free surface flow. Though the SIMPLE algorithm is free from the limitation of time step, the free surface behavior imposes the restriction on the time step. As a result, the explicit schemes are faster than the implicit scheme in terms of computation time when the same time step is applied to, since the implicit scheme includes the numerical method to solve the simultaneous equations in its procedure. If the computation time of SIMPLE algorithm can be reduced when it is applied to the unsteady free surface flow problems, the calculation can be carried out in the more stable way and, in the design process, the process variables can be controlled based on the more accurate data base. In this study, a modified SIMPLE algorithm is presented fur the free surface flow. The broken water column problem is adopted for the validation of the modified algorithm (MoSIMPLE) and for comparison to the conventional SIMPLE algorithm.
Keywords
Free Surface; SIMPLE; Implicit Method; Time Saving;
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Times Cited By KSCI : 2  (Citation Analysis)
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