TY - JOUR T1 - Pressure-Correction Projection FEM for Time-Dependent Natural Convection Problem AU - Jilian Wu, Xinlong Feng & Fei Liu JO - Communications in Computational Physics VL - 4 SP - 1090 EP - 1117 PY - 2018 DA - 2018/04 SN - 21 DO - http://doi.org/10.4208/cicp.OA-2016-0064 UR - https://global-sci.org/intro/article_detail/cicp/11272.html KW - AB -

Pressure-correction projection finite element methods (FEMs) are proposed to solve nonstationary natural convection problems in this paper. The first-order and second-order backward difference formulas are applied for time derivative, the stability analysis and error estimates of the semi-discrete schemes are presented using energy method. Compared with characteristic variational multiscale FEM, pressure-correction projection FEMs are more efficient and unconditionally energy stable. Ample numerical results are presented to demonstrate the effectiveness of the pressure-correction projection FEMs for solving these problems.