Conference proceeding
Toward Wall Modeling in Cartesian Grid Solver Using Overset Grid Technique for Ship Hydrodynamics
Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, Vol.1
ASME 2013 Fluids Engineering Division Summer Meeting, Incline Village, Nevada, USA, Jul. 07 - 11, 2013
07/07/2013
DOI: 10.1115/FEDSM2013-16481
Abstract
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 layer on the surface. The overset grid information is used to interpolate velocity, pressure, turbulence quantities, and level set function. A coupled pressure Poisson equation is solved using PETSc. The coupled curvilinear/Cartesian grid solver has been applied to two-phase turbulent flows past a circular cylinder and has shown good agreement with the experimental data and the LES results in the literature. The solver is being applied to a free surface flow around Wigley’s parabolic hull form at Re = 3.4×106 and Fr = 0.25. The numerical results are promising compared to an experimental result of wave elevations at the same Fr.
Details
- Title: Subtitle
- Toward Wall Modeling in Cartesian Grid Solver Using Overset Grid Technique for Ship Hydrodynamics
- Creators
- Akira Hanaoka - University of IowaJianming Yang - University of IowaFrederick Stern - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, Vol.1
- Conference
- ASME 2013 Fluids Engineering Division Summer Meeting, Incline Village, Nevada, USA, Jul. 07 - 11, 2013
- Publisher
- American Society of Mechanical Engineers
- DOI
- 10.1115/FEDSM2013-16481
- ISSN
- 0888-8116
- Language
- English
- Date published
- 07/07/2013
- Academic Unit
- Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984196627302771
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