thermal diffusion coefficient meaning in Chinese
热扩散系数
Examples
- A lot of results are made from calculating of case for geothermal reservoir property of earth energy within 200 2000 ( m . ) ， it is helpful to analysis influence of permeability coefficient , kinematic viscosity and thermal diffusion coefficient of soils and rocks on heat transfer performance
在地表热能热储物性为200 - 2000 ( m . )的范围内进行的理论计算，得到了许多重要结果，为分析岩土层渗透系数、流体运动粘度和导温系数等对传热量的影响打下了良好基础。 - For a soil or rock of water - lacked , a heat transfer theoretical model is developed , which is a steady or unsteady , the results show that reservoir temperature , thermal diffusion coefficient , inlet temperature , flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe . it can deduce that intermit running is favorable for this type of soils and rocks
对于贫含水地下岩土层建立了稳态与非稳态传热的理论模型，分析结果表明，岩土层的热储温度、导温系数、埋地换热器进水温度、流量以及地源热泵系统的运行时间或开停机比，都对埋地换热器的传热过程产生直接影响，可以推断，对于该类型岩土层的地源热泵系统，采用间歇运行将是有利的。 - A transfer model is established , which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains . the model has simulated surface heat flux , surface temperature , temperature profiles , height of mixture layer and so on . and the differences between urban area , suburban area and rural area have been compared . this model mainly depends on the parameters below : surface albedo , surface roughness coefficient , moisture available coefficient of soil , thermal capacity and thermal diffusion coefficient of errain , cloudage . the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day . parameters used in this model aim at beijing city , and the time is at the beginning of september . to other cities , or other time , the parameters should be adjusted accordingly . in addition , being adjusted , the model can also be used for other homogeneous and inhomogeneous terrains
模式主要依赖于以下参数和物理量：地面反照率下垫面粗糙度土壤的可含水量下垫面的热容量和热扩散系数云量等参数。结果表明，本模式能合理地模拟不同地表热量平衡地表气温混合层高度湍流交换系数湍流动能位温廓线等，以及它们的日变化。该模式所取参数主要针对北京市，时间为九月初，对于其他城市，参数应作相应的调整。