Search results for "Numerical methodology"

showing 1 items of 1 documents

MAST-RT0 solution of the incompressible Navier–Stokes equations in 3D complex domains

2020

A new numerical methodology to solve the 3D Navier-Stokes equations for incompressible fluids within complex boundaries and unstructured body-fitted tetrahedral mesh is presented and validated with three literature and one real-case tests. We apply a fractional time step procedure where a predictor and a corrector problem are sequentially solved. The predictor step is solved applying the MAST (Marching in Space and Time) procedure, which explicitly handles the non-linear terms in the momentum equations, allowing numerical stability for Courant number greater than one. Correction steps are solved by a Mixed Hybrid Finite Elements discretization that assumes positive distances among tetrahedr…

General Computer Scienceeulerian methodMathematics::Analysis of PDEspredictor–corrector scheme02 engineering and technology01 natural sciencesnavier–stokes equationsSettore ICAR/01 - Idraulica010305 fluids & plasmasNumerical methodologyPhysics::Fluid Dynamics0203 mechanical engineeringNavier–Stokes equations 3D numerical model Eulerian method unstructured tetrahedral mesh predictor–corrector scheme Mixed Hybrid Finite elementIncompressible flow0103 physical sciencesNavier–Stokes equationsPhysicsMathematical analysisEulerian methodunstructured tetrahedral meshEngineering (General). Civil engineering (General)3d numerical modelTetrahedral meshes020303 mechanical engineering & transportsmixed hybrid finite elementModeling and SimulationCompressibilityTA1-2040Engineering Applications of Computational Fluid Mechanics
researchProduct