为了研究滑动式可变进气结构对缸内斜轴涡流特性的影响。
Study on Numerical Simulation of the Variable Intake Manifolds on Intake Flow Characteristics and Performance for Gasoline Engine;
除具有纯滚流特点的S1阀片位置外，缸内气体斜轴涡流运动强度与单边气道截面被遮住的面积成正比。
Lastly, the strength of inclined-axis swirl is directly proportional to the Shadowed area of the single channel except for the S1 valve position where the in-cylinder motion is only tumble.
利用稳流气道试验台对这种可变进气结构的涡流和滚流进行了实验，采用特定方法计算了可变进气结构的缸内斜轴涡流特性。
Based on the measured swirl and tumble, the evaluations of the inclined-axis swirl were calculated with a specified method. The results are as follows.
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