Vacuum cooling is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
真空冷却过程是复杂的相变传热传质过程，该过程涉及到扩散、传热、传质和相变等机理。
In the process of hydrodynamic calculation, ocean current and monsoon have been added to the model, and the diffusion law of cooling water under the condition has been studied.
在水动力计算过程中考虑了洋流和季风等长周期动力因素，研究了温排水在这种长周期动力条件下的扩散规律。
The diffusion effects of two types of diffusion depth of cooling water, such as the whole water depth and the mixing zone, are calculated by using a two-dimensional mathematical model.
采用平面二维数学模型计算了温排水扩散深度为全水深和掺混层两种情况。
At the same time, it also shows that the diffusion from cooling water is affected by both of tidal current and heat flux.
同时表明温排水扩散受到潮流运动和海—气热通量的影响。
In this paper, a two-dimensional flow equation and a thermodiffusion equation are used to simulate the diffusion feature of the cooling water drained into Puyang River by Xiaoshan Power Plant.
本文用二维水流方程和平面热扩散方程模拟电厂温排水在浦阳江中的扩散情况。
Rapid cooling after nitrocarburizing, martensite structure is obtained at the diffusion layer.
氮碳共渗后快冷，在渗层获得含氮碳的马氏体组织。
Comparison of the calculation results shows that it is more rational using the mixing zone depth to control the cooling water diffusion for deeper water.
在对计算结果比较后认为，当水深较大时，采用掺混层的厚度控制温排水扩散更为合理。
After the calculation of heat flux, the diffusion from cooling water was simulated by a numerical model-ECOMSED. Results from the model and observation were compared and analysed.
利用计算出的热通量数值，用三维数值模式ecomsed对象山港海域的温排水扩散进行数值模拟，并将计算的结果与实测结果进行比较分析。
Physical model test is to analyze the cooling water in the receiving waters in an effective way to transport law of diffusion.
物理模型试验是分析温排水在受纳水域中扩散运移规律的有效方法。
For cooling system, the absorption-diffusion cycle is adopted and its structural design and working parameters are also introduced.
制冷机采用吸收扩散式制冷循环，对主要参数的选择和结构设计特点做了说明。
The variation of air-sea heat fluxes have important influence on heat exchange between ocean and atmosphere, and greatly affects the heat diffusion of cooling in local area.
海—气热通量的变化对海—气的热量交换具有重要的影响，能够很大程度上影响局部海域温排水扩散情况。
The variation of air-sea heat fluxes have important influence on heat exchange between ocean and atmosphere, and greatly affects the heat diffusion of cooling in local area.
海—气热通量的变化对海—气的热量交换具有重要的影响，能够很大程度上影响局部海域温排水扩散情况。
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