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在发动机气道的稳流试验中,测量了缸内和气门口的气流速度;并从两个方面研究了稳流试验数据的可比性: 1.以相似理论为基础,分析归纳了气道性能试验的几种无量纲参数表示法。2.参照实验结果,讨论了用风车测量旋流时尽可能准确地反映实际气流动量矩流率的方法。建议规定一种标准的试验设备和数据处理方法,以利于发动机气道试验数据的对比。
In the steady flow test of the engine airway, the air velocity in the cylinder and the valve port was measured. The comparability of the steady flow test data was studied in two aspects: 1. Based on the similarity theory, the airway performance test Several dimensionless parameter notation. Based on the experimental results, the method to reflect the actual flow moment of gas flow as accurately as possible when the windmill is used to measure the swirl flow is discussed. It is recommended to provide a standard test equipment and data processing method to facilitate comparison of engine airway test data.