TRACTION SINGULARITIES ON SHARP CORNERS AND EDGES IN STOKES FLOWS
作者:
PEYMAN PAKDEL,
SANGTAE KIM,
期刊:
Chemical Engineering Communications
(Taylor Available online 1996)
卷期:
Volume 148-150,
issue 1
页码: 257-269
ISSN:0098-6445
年代: 1996
DOI:10.1080/00986449608936518
出版商: Taylor & Francis Group
关键词: Boundary integral equations;Corner singularities
数据来源: Taylor
摘要:
An integral identity developed by Brenner (1964) is used in the “reversed” context to derive a fixed point iterative scheme for the surface tractions on a rigid particle of arbitrary shape submerged in Stokes flows. The iterative approach facilitates the solution of very large systems of equations and thus the employment of high resolution discretization schemes. The utility of the approach is demonstrated by illustrative computations of the tractions on regular polyhedra, with special emphasis on the results near the edges and corners where (integrable) singular behavior is expected to provide a stringent test for the numerical method. Excellent agreement between our numerical estimates for the exponent of these singularities with the analytical result (local 2-D analysis) were obtained. The emphasis in this work is on validation of the approach, but references to applications, such as fluidic self-assembly of semiconductor microstructures, are provided.
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