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提出了柴油油滴蒸发和燃烧过程理论计算方法。对油滴蒸发考虑了不定常蒸发和定常蒸发2个阶段,提出了一个求解蒸发时,油滴直径瞬时变化的代数方程式。对一台直喷式柴油机进行了实例计算,计算得到的瞬时燃烧放热率和气缸压力,与试验值符合很好。
A theoretical calculation method of diesel oil drop evaporation and combustion process is proposed. The evaporation of oil droplets takes into account the two stages of unsteady evaporation and steady evaporation, and presents an algebraic equation for solving the instantaneous change of oil droplet diameter when evaporating. An example calculation of a direct injection diesel engine, calculated instantaneous heat release rate and cylinder pressure, in good agreement with the test value.