A mathematic model of spray wall-impingement was established based on discrete droplet model (DDM) considering the operating conditions of diesel engine.
基于离散液滴模型(DDM)，结合柴油机实际工作情况，建立了喷雾碰壁的数学模型。
The spray wall-impingement experiments of dimethyl ether(DME) and diesel were carried out in a constant volume chamber by using a high speed camera.
在压力定容室内，利用高速摄影机对二甲醚（DME）和柴油进行了喷雾碰壁的试验研究。
These requests are resided to to the company with vehicle and other heavy type vehicle, economy and credibility first, therefore mostly adopt to high-efficiencily keep a spray type diesel engine.
这些要求对于商用车辆和其它重型车辆，经济性和可靠性居于首位，因此大多采用高效率的直喷式柴油机。
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