The Lagrangian-Eulerian algorithm was used for simulating flow past a confined cylinder with 1∶2 diameter/wall ratio.The one-mode Phan-Thien and Tanner(PTT) constitutive model was used in the present calculation.Profiles of both velocity and stresses are obtained at different sections of the steady flow

and compared with laser Doppler velocimetry and flow-induced birefringence data given by Baaijens et al. for a polyisobutylene/tetradecane(PIB/C14) contraction flow at Deborah number De =0.93.Overall

the simulation has reproduced the experimental results is fairly well. In addition

the dimensionless drag on the cylinder is reported to be a monotonically decreasing function of the Deborah numer

and agrees well with the numerical results of Dou and Phan-Thien.