IC3M

In-Cylinder Moving Mesh Module (IC3M) a vertical application which uses ICEMCFD geometry and grid generation libraries to automate the process of complicated transient engine modeling.


Issues with Conventional Engine Simulation Approach

  • Complicated moving geometry
  • Complicated physics
  • Lengthy Simulation process (720 crank angle)
  • Requires special skills

IC3M Methodology
  • Vertical application tool based on Hexa, Tetra and Prism cells
  • Fast transient engine simulation tool
  • Highly automated process packaged in an easy-to-use, intuitive GUI environment which guides the user step-by-step through the simulation setup


IC3M Features
  • IC3M is based on the capability of the solvers to support hybrid grids along with dynamic boundary movement,
  • A single grid for the entire engine simulation
  • Based on nodal movement and
  • Dynamic cell addition/removal is also performed for solvers that require this function
  • Solver independent
  • Each geometry component (port, dome or piston) can be meshed using grid topologies
  • Can handle a wide range of geometric configurations without requiring a library of predefined topology templates
  • Have been applied to various Gas and Diesel Engines
  • User must only create a master geometry (tetin) file containing all engine components to be modeled.
  • Compute Geometry process will use this file to automatically create sub-tetin files for each engine component that will be meshed (intake/exhaust ports, valves, combustion dome and piston bowl).
  • Sub-geometries created during the Compute Geometry process will be each automatically meshed during the Compute Mesh process.
  • The default mesh is tetra in the stationary regions and prism/hexa in the moving regions. However, the entire mesh could also utilize hexahedral cells. The hexahedral cells will have to be generated manually in ICEM Hexa.
  • These mesh components are assembled together to create a Base Mesh, which will be used for the entire engine simulation
  • Short learning curve (one week), two days with Previous ICEM Experience
  • Stream line hybrid grid generation process with high quality cells
  • Valve profile including the machined edges are captured explicitly
  • Mesh motion is compiled with the solver
  • Based on robust ICEM CFD meshing technology

Input Parameters

Solver Parameters




Sample Movies for IC3M


1. IC3M Geometry Preview (click on Play to start)



2. IC3M Mesh Preview (click on Play to start)



3. Solution, Hybrid Grid (click on Play to start)



4. IC3M Mesh Preview (click on Play to start)



5. Solution, All Hexa Grid (click on Play to start)



6. IC3M Mesh Preview, All Hexa (click on Play to start)



7. CFD Solution (click on Play to start)






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This page last modified at 02:03:55 PM, Wednesday, May 02nd, 2007 IST