Open AccessSTABILIZED NUMERICAL METHODS FOR THE TWO KINDS OF PROBLEMS OF INCOMPRESSIBLE FLUID FLOWS
Author(s) -
Shahid Hussain,
Sajid Hussain
Publication year - 2021
Publication title -
journal of mountain area research
Language(s) - English
Resource type - Journals
eISSN - 2518-850X
pISSN - 2518-8496
DOI - 10.53874/jmar.v6i0.90
Subject(s) - compressibility , newtonian fluid , nonlinear system , mathematics , finite element method , flow (mathematics) , incompressible flow , viscoelasticity , scheme (mathematics) , fluid dynamics , mathematical analysis , mechanics , physics , geometry , thermodynamics , quantum mechanics
A mixed finite element method (MFEM) stabilized for the two kinds of problems related to the incompressible fluid flow is demonstrated. In the first kind, the Newtonian fluid flow is illustrated with the MFEM and considered discontinuous scheme. Initially, the model equations are considered nonlinear and un-stabilize. The model equations are solved for linear terms with the special technique first and then the model equation with the extra added term is utilized later to stabilize the model equations. A steady-state viscoelastic Oseen fluid flow model with Oldroyd-B type formulations was demonstrated in the second kind of problem with SUPG method. The nonlinear problems are linearized through the Oseen scheme. Numerical results for both the model equations are given and compared. The SUPG method is found more suitable and active.