Browse Publications Technical Papers 2014-01-1133
2014-04-01

Automatic Body Fitted Hybrid Mesh Generation for Internal Combustion Engine Simulation 2014-01-1133

An automatic mesh generation process for a body fitted 3D CFD code is presented in this paper along with the methodology to guarantee the mesh quality. This tool named OMEGA (Optimized MEsh Generation Automation) uses a direct coupling procedure between the IFP-C3D solver and a hybrid mesher Centaur. Thanks to this automatic procedure, the engineering time needed for body fitted 3D CFD simulation in internal combustion engines is drastically reduced from a few weeks to a few hours. Valve and piston motion laws are just given as input files and geometries and meshes are automatically moved and generated. Unlike other procedures, this automatic mesh generation does not use an intermediate geometry discretization (STL file, tetrahedral surface mesh) but directly the original CAD that has been modified thanks to the geometry motion functionalities integrated into the mesher. All the meshes generated by the tool discretize precisely the surface geometry (nodes are projected on the correct CAD surfaces) to guarantee a correct flow prediction around intake valves and piston. Using the automatic procedure and the IFP-C3D code, a 4-valves SI engine simulation is presented. In a first step, the meshes generated with the tool are analyzed in terms of quality and refinement. Then, 3D numerical results of the internal aerodynamics are presented along with a description of the engineering time spent from the CAD modification to the end of the numerical simulation while highlighting the parallel efficiency of the IFP-C3D code using an integrated load balancing.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

An Extension of the Dynamic Mesh Handling with Topological Changes for LES of ICE in OpenFOAM®

2015-01-0384

View Details

TECHNICAL PAPER

Design of a Tumble-Orientated Intake Port Layout for a Gasoline Combustion Process Used in Power Sport Application

2011-32-0589

View Details

TECHNICAL PAPER

CAE-Based Port Development and Flow Design for SI Engines

2005-01-0243

View Details

X