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|Title: ||Semidiscrete finite element Galerkin approximations to the equations of motion arising in the Oldroyd model|
|Authors: ||PANI, AK|
|Keywords: ||navier-stokes problem|
|Issue Date: ||2005|
|Publisher: ||OXFORD UNIV PRESS|
|Citation: ||IMA JOURNAL OF NUMERICAL ANALYSIS, 25(4), 750-782|
|Abstract: ||In this paper, a semidiscrete finite element Galerkin method for the equations of motion arising in the 2D Oldroyd model of viscoelastic fluids with zero forcing function is analysed. Some new a priori bounds for the exact solutions are derived under realistically assumed conditions on the data. Moreover, the long-time behaviour of the solution is established. By introducing a Stokes-Volterra projection, optimal error bounds for the velocity in the L-infinity(L-2) as well as in the L-infinity(H-1)-norms and for the pressure in the L-infinity(L-2)-norm are derived which are valid uniformly in time t > 0.|
|Appears in Collections:||Article|
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