Shape Optimization of Engine Intake Port by Using Immersed Boundary Method and Adjoint Method

Immersed Boundary 法とAdjoint 法による吸気ポートの形状最適化

In order to develop products which satisfy various demands for a limited period, shape optimization technology by using Adjoint method has been developed. In this study, the authors developed computational fluid dynamics (CFD) calculation technique by using Immersed boundary method which does not require mesh to regenerate for modified shape, in order to operate the shape optimization process automatically. Present technology was applied to design of engine intake port to achieve a balance the maximization of flow rate and that of tumble vortex. As a result, the optimized shape which has superior flow performance compared to the conventional design shape was obtained efficiently.限られた期間で性能を満足する製品開発のため,これまでにAdjoint法による効率的な形状最適化技術を開発した.この技術を自動化するため,流体計算用メッシュ作成を不要とするImmersed Boundary法を用いた計算技術を開発し,エンジン吸気ポート形状に適用した結果,タンブル比と流量係数を両立する形状を短期間で探索できた.


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  • Accession Number: 01672694
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:02PM