截面突变 meaning in English
abrupt change of cross-section
Examples
- Effect of sudden step on combustion in a micro - thermo - photovoltaic system
微热光电系统燃烧室内截面突变对燃烧的影响 - The author takes consider of the aerial condensability . according to newton ’ s second law and gas equation , it is elicited to the gas pressure distributives in the drill pipe
通过压力分布图可知,截面突变导致压力发生突变,空气流速在该处最低,因此,最小风量采用截面突变处风速计算。 - The results indicate that the flow velocity is lower and the pressure is high in majority of the step cylinder , the distinct variations of the flow field occur in the threshold of the step cylinder at the bottom and the abrupt transition sections , the holes in the inner and outer tubes and the exhaust hole
结果表明：步进缸内大部分区域流体流速较小，压力较高，且变化不大，发生明显变化的部位主要分布在步进缸底部水管入口及截面突变处、内外套对孔处和排气孔处。 - Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction , the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment . 3 . four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank
给出了基于gardel关于三通管水头损失系数的经验公式、焊接t形三通管水头损失系数的实验资料及截面突变管道的水头损失资料，计算有连接管的阻抗式调压室在不同流态下水头损失系数的计算方法，并将这两种方法计算得到的调压室局部水头损失系数分别与模型试验成果进行了比较和分析； 3