viscoelasticity;
finite element method;
fully discrete;
SUPG;
D O I:
10.1137/S003614290241177X
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this article we consider the numerical approximation to the time-dependent viscoelasticity equations with an Oldroyd B constitutive equation. The approximation is stabilized by using a streamline upwind Petrov - Galerkin (SUPG) approximation for the constitutive equation. We analyze both the semidiscrete and fully discrete numerical approximations. For both discretizations we prove the existence of, and derive a priori error estimates for, the numerical approximations.