Abstract
A new method of numelical analysis of a viscoelastic fluid flow is presented. The present method is derived by applying Lax's scheme to the constitutive equation and makes it possible to deal with a flow at a high Weissenberg number and a finite Reynolds number. The present numerical results are compared with experimental observations of Cochrane et al. on a flow over a protuberance, and the numerical predictions of a vortex behind a protuberance agree with the experimental reaults. A planar contraction flow is simulated numerically by the present method and the behaviour of the secondary flow vortex is investigated in detail. As a result, three pattelns of entry flow are observed.
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