TY - JOUR
TI - The ULT-HSS hybrid iteration method for symmetric saddle point problems
AU - Lu Jun Feng
JN - Thermal Science
PY - 2021
VL - 25
IS - 3
SP - 2377
EP - 2384
PT - Article
AB - This paper proposes a hybrid iteration method for solving symmetric saddle point problem arising in CFD. It is an implicit alternative direction iteration method and named as the ULT-HSS (upper and lower triangular, Hermitian and skew- Hermitian splitting) method. The convergence analysis is provided, and the necessary and sufficient conditions are given for the convergence of the method. Some practical approaches are formulated for setting the optimal parameter of the method. Numerical experiments are given to show its efficiency.