著者

秋元 梢 本間 俊司 古閑 二郎 松本 史朗

出版者

埼玉大学工学部

雑誌

埼玉大学紀要. 工学部 第1編 第1部 論文集 (ISSN:18804446)

巻号頁・発行日

vol.38, pp.35-39, 2005-03

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Unsteady mass transfer from a two-dimensional drop is solved numerically with boundary element method. The domain is decomposed into two sub-domains for cylindrical drop and surrounding fluid, and boundary elements are arranged between the sub-domains. The system equation for boundary elements is derived by a direct method and by a finite difference approximation for time derivative. The solutions are independent of the number of elements on the interface of the drop and the external boundary of the domain. The number of meshes inside the domain, on the other hand, affects the numerical solutions. It is necessary for good approximation to select appropriate resolution of the computational domain and the time step.