A Hybrid Method for Low Reynolds Number Flow Past anAsymmetric Cylindrical
نویسندگان
چکیده
Low Reynolds number uid ow past a cylindrical body of arbitrary shape in an unbounded, two-dimensional domain is a singular perturbation problem involving an innnite logarithmic expansion in the small parameter ", representing the Reynolds number. We apply a hybrid asymptotic-numerical method to compute the drag coeecient, C D , and lift coeecient, C L , to within all logarithmic terms. The hybrid method solution involves a matrix M, depending only on the shape of the body, which we compute using a boundary integral method. We illustrate the hybrid method results on an elliptic object and on a more complicated proole.
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