Based on the relationship between the resistance coefficient and gas reynolds number , a new equation used for the calculation of the pressure drop was derived 对实验结果进行回归得到了阻力系数与气相雷诺数的关系，并提出了新的气相压降计算模型。
The three - dimensional mechanical model is produced on the analysis of the mutual - effect forces of the bridge and the rail 摘要运用梁轨间阻力系数的概念和梁轨间的阻力从线性转非线性的性质，分析计算桥梁和钢轨的相互作用力，运用“ m ”法计算基础刚度。
The numerical results show that the wave pattern and the wave - making resistance coefficient from present paper are agree with experimental data and other numerical methods 计算结果表明，其波型及兴波阻力系数与试验结果和其他数值方法相比均吻合较好。
The single particle motion equation is established . according the state of gas - particle motion , the particles motion in the clean room is located at the regime of slip 通过对流态的分析得出在洁净室中悬浮颗粒处于滑移状态区，并以此作为选择颗粒阻力系数的依据。
Based on a lot of experimental data , the empirical correlations of single - phase heat transfer coefficient , condensation heat transfer coefficient and pressure drop factors are given 根据大量实验数据，得到了计算对流换热系数、冷凝换热系数及阻力系数的经验关联式。
And it also provide other utilities , such as checking the invalid data , inquiring about friction coefficient , conversion between units , inquiring about local resistance coefficient and so on 同时，介绍了比摩阻查询，局部阻力系数查询，联机帮助等等实用功能。
In conclusion , the design of automobile model is not only to reduce drag coefficient but also to improve lift coefficient , so the automobile has good performance 综合以上工作,明确了汽车车头设计不仅要考虑空气阻力系数的降低,同时要考虑升力系数的变化,以保证良好的行驶性能。
The resistance coefficient of the river , the scale affect of the rigid bed model , and the rule of channel dredging are also discussed in order to obtain the reliable conclusion 对河床的阻力系数、定床模型试验的比尺效应以及电厂下。游清挖原则进一步研究，以期给出较明确的结论。
Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed , then resistance coefficient changes obviously 实验结果表明：在湍流区域内流速（量）不变时，改变管件开度，阻力系数变化较显著；改变流量，管件开度不变时，变化不大。
And the results of the wake length , separation angle , and drag or pressure coefficient for low reynolds number are excellent agreement with previous experimental and numerical results 得到的低雷诺数下的回流长度、分离角、阻力系数、压力系数和现有的试验或数值结果相比，都能良好吻合。
