Search results for "The proposed model is suitable for the solution of laminar flows in irregular domains"

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MAST-RT0 SOLUTION OF 3D NAVIER STOKES EQUATIONS ON UNSTRUCTURED MESHS. PRELIMINARY RESULTS IN THE LAMINAR CASE

2021

A new numerical solver for the 3D Navier Stokes incompressible laminar problems is proposedThe governing equations are discretized over unstructured tetrahedral mesheThe proposed model is suitable for the solution of laminar flows in irregular domainsDelaunay mesh condition is not requiredSettore ICAR/01 - Idraulica
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MAST-RT0 solution of 3D Navier Stokes equations in very irregular domains. Preliminary results in the laminar case

2021

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…

A new numerical solver for the 3D Navier Stokes incompressible laminar problems is proposedThe proposed model is suitable for the solution of laminar flows in irregular domainsSettore ICAR/01 - Idraulica
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