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Transport control of shear‐thinning fluids within corrugated microannulus
Author(s) -
Chu Z.KwangHua,
Qin Chen
Publication year - 2008
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.200700142
Subject(s) - shear thinning , thinning , rheology , materials science , mechanics , shear (geology) , surface finish , shear flow , composite material , physics , ecology , biology
The rheological characteristics and volume flow rates (up to the second order) of shear‐thinning fluids inside the transversely corrugated microannuli were obtained by using the verified fluid model and boundary perturbation method. Our results show that the temperature as well as wavy‐roughness could influence the transport of the shear‐thinning fluids significantly. Meanwhile, the phase shift between the outer and inner walls of microannuli could tune the transport of shear‐thinning fluids significantly when the wavy‐roughness (of the microannuli) is larger enough and the external forcing is small. Our results could be applied to the flow control in biofluidics and microfluidics.