| 1. | It is found that the hub leakage flow leads to an increased flow blockage near the hub , resulting in drop of rotor performance
结果表明：叶根泄漏流可使叶根附近流动堵塞增大，造成转子气动性能的恶化。 |
| 2. | Additionally , the larger the circumferential velocity component of hub leakage flow , the greater the deleterious effect of hub leakage upon the rotor flow
另外，叶根泄漏流的周向速度分量越大，泄漏流对转子流场的不利影响也越大。 |
| 3. | Inview of the leakage of some mine efflent retention dams in china , the characteristics of the engineering constructions , the causes for the leakage and the leakage flow route are analyzed and engineering control measures are suggested in combination with the engineering practice
针对我国有关矿山截污库坝渗漏的情况，分析研究了工程构筑物的特点、渗漏原因及渗流途径，结合工程实际，提出了工程治理对策。 |
| 4. | The hub leakage flows were modeled and calculated in two different ways : the flow fields inside hub axial gap were calculated together with blade passage flow in an integrated manner , and the leakage flows due to the hub axial gap were modeled as inlet boundary conditions
计算时分别采用了两种模化途径，即耦合求解转子上游叶根间隙内空腔与转子通道内的流场，以及求解将叶根同间隙模化为进口边界的转子流场。 |
| 5. | Abstract : inview of the leakage of some mine efflent retention dams in china , the characteristics of the engineering constructions , the causes for the leakage and the leakage flow route are analyzed and engineering control measures are suggested in combination with the engineering practice
文摘:针对我国有关矿山截污库坝渗漏的情况，分析研究了工程构筑物的特点、渗漏原因及渗流途径，结合工程实际，提出了工程治理对策。 |
| 6. | The effect of leakage flow due to the upstream hub axial gap on the rotor performance and the mechanism of interaction between the hub leakage flow and the rotor blade passage flow were studied based on the numerical simulations of the flow fields of a transonic compressor rotor with upstream hub leakage
摘要为研究压气机转子上游叶根轴向间隙泄漏流对转子性能的影响程度以及泄漏流与转子流场之间的相互作用机制，对带有叶根泄漏流的跨声压气机转子流场进行了数值模拟。 |
| 7. | Based on the comparison made among the characteristics of different kinds of the blade materials , the relationship between the material characters and the flow attack angle is explained , and then the breakage mechanism of the combined effects from both the clearance - cavitations and the erosion of leakage flow are expounded comprehensively
通过对不同材料的特性比较，解释了材料特性与冲角之间的关系，综合阐述了泄漏流动所引起叶片正面头部空蚀与磨损联合作用产生破坏的机理。 |
| 8. | In the leakage characteristic test , the problem of small leakage flow automatic test is solved with the method of usage of an ellipse gear flow meter and a self - made interface circuit . in the dynamic state characteristic test , frequency sweeping and statistic methods are used and their results are compared with 1250 frequency response analyzer
在电液伺服阀动态测试实验中，采用了扫频法和统计法这两种不同的方法进行测试，并对实验结果与1250频响分析仪所测的结果作了对比，发现二者基本一致。 |
| 9. | The derivation of the leakage flow rate formula of the special annular clearance between the piston and cylinder under condition of variable viscosity in the axial piston pumps was carried out . at same time , considering the questions of the eccentricity and the variable sealing length of piston friction pair , the modified coefficient of the calculation formula of the flow - rate of the leakage was given
在变粘度、柱塞偏心以及变密封长度条件下，对轴向柱塞泵中柱塞与缸孔之间的特殊圆环缝隙的泄漏流量公式进行推导，得到了该计算公式的修正系数； 6 |
