free convection meaning in English

高速切削
自然对流
自由对流
自由对流自然对流

There are two modes of convection : free convection and forced convection
热对流的花样最多，且和流力有密切关系。
Each pbl scheme is different in its formulation of vertical mixing within the pbl and the surface fluxes , which in turn leads to the difference in upper free convection atmosphere
由于边界层参数化方案的多种多样性，也就存在着各自的优点，同时也存在着各自的局限性，至今没有一个定论。
The effects of interfacial resistance , superheating , free convection due to both temperature and concentration gradients , mass diffusion and thermal diffusion , and variable properties in both the liquid and gas - vapor regions were considered
分析中，考虑了相间阻力、液膜波动、蒸汽过热度、因温度和浓度梯度引起的自然对流、质扩散和热扩散以及物性的变化。
In this thesis , a series of experiments are carried out to study the flow field in the hermetic cabins and also a mathematical modeling was built to simulate the flow of the cabins using the cfd software ? luent . that the convection on the ground include forced convection and free convection
根据实际情况，建立切实可行的地面模拟技术，建成地面模拟实验装置，然后对其密封舱内的流动情况进行了地面实验，并且对其中一个型号的密封舱建立了数学模型，用fluent软件计算得到速度场。