| 1. | Scaling analysis of unsteady natural convection flow of a fluid with low prandtl number
数流体非稳态自然对流流动的标度分析 |
| 2. | Magnetic prandtl number
磁普朗特数 |
| 3. | Author considers that munk - anderson ' s modification is not suitable to simulate the buoyant flow in reservoir , and suggests the turbulent prandtl number as the constant of 0 . 85 in the water temperature model of reservoir
本文认为该修正模型并不适用于水库浮力流的模拟，建议在大型深水库水温模型中温度普朗特数采用常值0 . 85 。 |
| 4. | Among his many contributions to the field of turbulent thermal convection , his work in high prandtl number heat flux measurement played a pivotal role in settling a long - standing issue in the field
他在湍流热对流领域中有著众多的贡献，尤其是关于高普朗德数下湍流传热方面的实验研究，此研究对于解决这个领域中长期未决的问题起了极为关键的作用。 |
| 5. | This paper carry out experimental study of the heat transfer and flow resistance characteristics of high prandtl number fluid in 3 - d internally crossing - finned tubes with cross - experiment design method . use oil as work media
本文以未使用过的润滑油为工质，用正交试验设计方法，对高pr数流体在肋叉排列三维内肋管中的传热和流阻特性进行了实验研究。 |
| 6. | The influence of difference in temperature , reynolds number of film and prandtl number to the heat transfer performance on the evaporation side was discussed via the uniform wall temperature experiments . by analyzing above influence factors , the character of umbrella - plate evaporator which is fit for evaporation under little difference in temperature and fit for evaporating heat sensitivity materiel could be obtained
通过恒壁温实验探讨了传热温差、液膜雷诺数、普朗特数这些主要因素对伞板式降膜蒸发器传热性能的影响，通过对以上影响因素的分析，得出了此种结构的蒸发器特别适用于小温差情况下的蒸发，而且特别适用于热敏性物料的蒸发等特性。 |
| 7. | With the helium as the working gas , we attained 119 . 7k the refrigeration temperature of the pulse tube . this is the first time that it enters the cryogenic field using the thermocaoustic engine in china . 2 ) the application of binary noble gas on tadptr after the discuss of the possibility of applying binary noble gas on tadptr , we give the way to calculate the prandtl number of the binary noble gas
混合工质应用于热声驱动的脉管制冷机对惰性气体二元混合工质在热声机械中的可能应用进行了探讨，给出了混合工质的普朗特数等参数的计算方法，并进行了采用氦-氩混合工质的热声驱动脉管制冷机的实验研究。 |
