| 1. | Study on similitude criterion and resistance properties of coal - water paste flowing in pipes 水煤膏管内流动的相似准数及阻力特性 |
| 2. | The critical value of these parameters and that of flow pattern criterion reynolds number of newtonian fluid are equally possessed of the character irrelative to fluid rheological property 这些参数的临界值与牛顿液体流态准数雷诺数的临界值,同样具有与液体流变性无关的特点。 |
| 3. | The study shows that the theoretical models are in good agreement with the experimental results . the correlations mentioned above can facilitate the engineering design 研究表明,本文理论模型较好的预计了实验结果,得到的波形管降膜蒸发器传热分系数的准数关联式可以为工程设计提供参考依据。 |
| 4. | The experiment was carried out in two situations , without net flow and with net flow . the influence of oscillatory flow reynolds number ( re0 ) and strouhal number ( si ) to the injection dispersion performance of ofm was explored 实验分无净流量和有一定净流量两种情形,探讨了振荡雷诺数re _ o 、斯特劳准数st对振荡流场中的注入分散特性的作用以及净流雷诺re _ n的影响情况。 |
| 5. | The quantitative relational expression is obtained about the coefficient of additional pressure loss and the froude number by experiment , and the relation is made clear between the average speed of waste plastics particles and the pressure loss of per unit length 由实验得出废塑料输送管内气力输送附加压力损失系数与弗劳德准数的定量关系式,废塑料颗粒平均速度与单位管长压力损失的关系。 |
| 6. | Also , it extends the four evaluation methods ( the method of multi - factor and major factor evaluation , the method of accurate number analyzing , the method of parameter analyzing , the method of congregating evaluation ) and deduce four applicable iee methods of real estate 本文选择借鉴了多因素和关键因素评价法、准数分析法、参数分析法和综合评价法四种投资环境评价法作为改进原型,提出了四种应用性的房地产业投资环境评价法。 |
| 7. | On the base of similarity theory of fluid system , the similarity numbers are analyzed , and the similarity relationship between the original model and the analogue model is researched , and much experiment has been carried out . in order to get experiment data , a computer measure system has been developed , which is mainly made up of host computer ( pc ) and extension computer ( by scm mainly ) 本文在流体力学中流动体系的相似理论基础上,推导了流场的相似准数,分析了各相似准数在模型中的作用,得出了原型(试验台)的流动状态与实船的相似关系,并据此为理论依据在原型(试验台)上进行试验研究。 |
| 8. | Abstract : according to the characteristics of high - speed water entry about the rotary projectile , an experiment plan satisfing mach similarity has been put forward for hydroballistic modeling of high - speed water entry about the rotary projectile by using dynamic equations of projectile movement and similarity theory , which can achieve the equivalent of main similarity parameters between true object and its model at atmospheric environment 文摘:针对旋转弹体高速入水特点,从弹体运动的动力学方程和相似理论出发,提出了模拟旋转弹体高速入水水中弹道的马赫相似实验方案.该方案在大气环境条件下,能够实现原型和模型两系统的主要相似准数相 |
| 9. | In the modal analysis , the similarity laws has been introduced to reduce the error during the assessment of the prototype building ' s natural frequency under the insufficient balance weight testing . by the author ' s theory , the prototype natural frequency can be the same even the balance weight of model is changeable 在模态分析方面,本文利用相似性原理,解决了模态试验在配重不足时,求解原型结构自振频率误差过大的问题,并且得出了在不同配重条件下,试验模型与原型结构的频率可以达到一致的相似准数。 |