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[세미나] 2012.07.12 계산과학 세미나 공지
계산과학전공   2013.07.11   1969

7월 12일 계산과학 세미나 공지

장소 : 25동 114호

제목 : Modeling and Simulation of Non-Newtonian Fluids Flows.

연사 : Prof. Young-Ju Lee

초록 :  
Unlike Newtonian fluids, the viscosity of non-Newtonian fluids is variable based on applied stress or stress history. There are abundant daily life examples of such non-Newtonian fluids, just to cite a few, cornstarch dissolved in water, ketchup, toothpaste, paint and shampoo, from which it is often possible to understand physics in an exciting hands-on way. In this talk, we introduce stable discretizations and fast solvers that can handle rate-type non-Newtonian fluid equations in a unified fashion and demonstrate their performance and validity by using both benchmark problems and mathematical theory. We apply these methodologies to investigate and attempt to identify a mathematical model for the unusual phenomenon observed in motion of the sphere falling through a wormlike micellar fluid in 2003. We shall then discuss some open issues as well as potential solutions in mathematical modelings.







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