Development of Automotive Engine Combustion Simulation Software “HINOCA”

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  • 自動車エンジン燃焼解析ソフトウェアHINOCA（火神）の開発
  • ジドウシャ エンジン ネンショウ カイセキ ソフトウェア HINOCA(カシン)ノ カイハツ

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<p>An automotive engine cylinder simulation software is now being developed under the support of Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Innovative Combustion Technology.” The software is named “HINOCA.” HINOCA is based on fully compressible Navier-Stokes equations which are filtered for LES(Large Eddy Simulation), and employs the Cartesian grid and immersed boundary (IB) methods to reduce the mesh generation cost and labor. The flow solver platform is developed by Japan Aerospace Exploration Agency by utilizing its aerospace CFD (Computational Fluid Dynamics) technology. The sub-models, spray, ignition, flame propagation and wall heat loss, are built into HINOCA by collaborating universities and research institutes. In the newly developed work flow based on the Cartesian grid and IB methods, mesh generation process is reduced to almost zero and flow simulation can be run directly from the cylinder configuration data defined in STL format. The simulation of Steady State Flow Bench shows a fairly good agreement with the measurement. The motoring simulation dealing with moving valves and a piston is successfully conducted by the employed CFD techniques. Built-in of the sub-models is now on going.</p>

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