エンジンシリンダ内空気流動の計測と数値シミュレーション : 第1報,パンケーキ形燃焼室婦負の空気流動

概要

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A theoretical-experimental study of the in-cylinder air motion in a mortored reciprocating engine is made in order to assess the k-ε turbulence model, boundary and initial conditions. LDV measurements of tangential and axial velocities are conducted throughout the whole space in a transparent cylinder engine which realizes the axi-symmetrical flow field. The numerical calculation commences at 90°BTDC with an experimental flow field as an initial condition. Agreement between the calculation and the experiment is satisfactory good on the mean velocity field ; but on the turbulent energy and dissipation, the qualitative disagreement is large. The latter calls for some improvement in the k-ε turbulence model.
一般社団法人日本機械学会の論文
1988-06-25