Wall-Layer Modeling for Cartesian Grid Solver Using an Overset Boundary Layer Orthogonal Curvilinear Grid

Toward Wall Modeling in Cartesian Grid Solver Using Overset Grid Technique for Ship Hydrodynamics

A Cartesian grid solver is coupled with an orthogonal curvilinear grid solver using overset grid interpolation and a coupled pressure Poisson solver. It aims at resolving the boundary layer on the body surface effectively. SUGGAR code, an overset grid assembly program, provides overset grid information of a Cartesian background grid and a thin orthogonal body-fitted grid to resolve the boundary...

An overset grid method coupling an orthogonal curvilinear grid solver and a Cartesian grid solver

A Multi-solver Scheme for Viscous Flows Using Adaptive Cartesian Grids and Meshless Grid Communication

This work concerns the development of an adaptive multi-solver approach for CFD simulation of viscous flows. Curvilinear grids are used near solid bodies to capture boundary layers, and stuctured adaptive Cartesian grids are used away from the body to fill the majority of the computational domain. An edge-based meshless scheme is used in the interface region to connnect the near-body and off-bo...

Scientific Flow Field Simulation of Cruciform Missiles Through the Thin Layer Navier Stokes Equations

The thin-layer Navier-Stokes equations are solved for two complete missile configurations on an IBM 3090-200 vectro-facility supercomputer. The conservation form of the three-dimensional equations, written in generalized coordinates, are finite differenced and solved on a body-fitted curvilinear grid system developed in conjunction with the flowfield solver. The numerical procedure is based on ...

Large Scale Parallel Computing and Scalability Study for Surface Combatant Static Maneuver and Straight Ahead Conditions Using CFDShip-Iowa

Scalability studies are performed for CFDShip-Iowa URANS/DES curvilinear and Cartesian grid solvers and calculations are performed using largest grids to date. Verification and validation study is performed for V4-DES solution for DTMB 5415 with bilge keels at 20 static drift using up to 250M grid. The instantaneous and mean flow field is analyzed to identify flow separation patterns, vortical...