エアアシストインジェクタによって生成される過渡噴霧流のモデリングと数値シミュレーション

抄録

An Eulerian model of non-evaporating transient sprays has been developed to study the effects of the operating conditions of an air-assist hollow-cone injector or the effects of fuel atomization on the spray structure. Good agreement between results of the experiments and the computation in terms of spray shape has been achieved. The numerical results show that an increasing degree of atomization leads to a decreasing spray cone-angle, small droplets form a solid-like structure near the injector exit and a roll-shaped structure near the starting vortex, and large drops maintain a hollow-cone structure because of their large inertia.