初生空化数由韦伯数w和空泡相对膨胀速度M所组成。
The incipient cavitation number consists of Weber's number W and m - relative velocity of cavitation bubble explosion.
渥奇段的空化为体型分离型，初生空化数约为0．2左右。
The paraboloid cavitation pattern is an isolated type; and the initial cavitation number is 0. 2 or so.
随通气空化数的减小，超空泡航行体尾部沾湿区域阻力系数也逐渐减小。
The drag coefficient of the aft wetted area of vehicle also decreased with the ventilated cavitation number.
在流速恒定情况下，随通气率的增大，通气空化数逐渐减小，呈指数规律衰减。
The ventilated cavitation number decreased with the ventilation flow rate by exponential law at constant velocity.
基于空泡动力学及概率统计理论，本文建议了一种预测绕流体初生空化数的方法。
Based on the bubble dynamics and the probability theory, a method for estimating the incipient cavitation number is suggested.
本文在考虑水流阻力的情况下，提出计算等空化数曲线的方程组，并给出电算程序。
This paper gives, from the energy equation for rapidly varied flow, the equations for the calculation of the curve of equal cavitation number in consideration of friction losses.
在相同的空泡相对长度或长细比下，随着锥顶角或直径的增大，对应的空化数也增大；
When relative length or the slenderness ratio is the same, cavitation number becomes big as the conic angle or the diameter of the cone becomes big, as shown in Fig.
笔者从提高空化数的角度出发，研究了减免阀门底缘空化的措施，并比较了各种改善措施的优劣。
This paper studies measures for depressing valve lip cavitation, Compares virtue and short coming of Version improvement measures, based on increasing Working Cavitation number.
噪声总声级的变化较为复杂，由泡空化状态转换到片空化状态，空化数虽然减小，但总声级会突然降低。
The total noise changes complexly. When the bubble cavitation turns on the sheet cavitation, the total noise will reduce suddenly although the cavitation number becomes smaller.
通过理论分析与模型试验，从时均压力、脉动压力、空化数等方面得出缓坡与陡坡过渡衔接部位采用抛物线型式较圆弧型式好的结论。
The parabolic shape is better than the arc shape through comparing time averaged pressures, fluctuating pressures and cavitations by theoretical analysis and hydraulic model experiments.
试验结果表明：水力空化对若丹明B确实有降解作用，处理系统中存在最佳的孔板几何参数和操作运行条件，并且若丹明B的降解速率随修正空化数的减少而增大。
There are the optimal geometric parameters and operating conditions in the system and the degradation rate of rhodamine B increases with decreasing the value of the modified cavitation number.
针对螺旋桨叶片数识别问题，建立了螺旋桨空化噪声信号模型。
In order to solve the problem of propelle blade-number recognition, the propelle radiated-noise model is built on the basis of five hypotheses.
通过调节通气提高空化初生的空化 数，工作时孔板旋转使堵塞物破碎和脱离。
Through the adjustment of ventilation, the nascent cavitation number of cavitation is improved and the pore plate can crush and separate clogs during operation.
测量结果表明：在空化形态不变的条件下，空化噪声宽带谱级将随空泡数的减小而单调增加；
The results of experimental investigations clearly show that the broad band spectra level of cavitation noise increases as the cavitation number becomes small;
测量结果表明：在空化形态不变的条件下，空化噪声宽带谱级将随空泡数的减小而单调增加；
The results of experimental investigations clearly show that the broad band spectra level of cavitation noise increases as the cavitation number becomes small;
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