| 词汇 | convection |
| 释义 | convection noun[ U ] physics specializeduk /kənˈvek.ʃən/ us /kənˈvek.ʃən/ the flow of heat through a gas or a liquid: （热通过液体或气体的）对流 Warm air rises by the process of convection.热空气通过对流上升。 Physical & chemical processes absorbable absorptive absorptive capacity absorptivity acidification aerate endothermic reaction excitability excitation excite exergonic exothermic impregnate re-emit reabsorb react reboil recondense scald vaporize convection | American Dictionaryconvection noun[ U ] us/kenˈvek·ʃən/ science the flow of heat through a gas or a liquid as the hotter part rises and the cooler part falls Examples of convectionconvection This gradient, established and maintained by the surface buoyancy flux through the process of turbulent convection, is what draws fluid in from the external reservoir. The definition of convection velocity used for the present work is precisely the same as that used in the previous plane boundary-layer experiments. The system reaches a near steady-state convection pattern. In that case the basic patterns are traveling pulses which arise in the convection of binary fluids. A phase-locked flow-visualization technique was adopted for determining the convection velocities of the two types of vortices during the pairing event. One obvious method to suppress higher-dimensional behaviour in convection in rectangular containers is t o use narrow convection cells. Vigorous compositional convection from the growth of the basal crystals can also be seen. This article describes experimental work on the mixed convection regime with flow normal to electrically heated cylinders. We describe experiments on convection in binary fluid mixtures in a large-aspectratio annular container. The large-scale motions transport by simple convection of fluid packets while there is smaller scale transport by gradient diffusion. For example, the observed trends for energy transport in a round free jet flow is by the large-scale convection motions. This minimizes convection of points that leads to uneven node point distributions and is a principal cause of numerical difficulties. Transient uplift is probably generated by temporal and spatial variations in mantle convection. The book is broad in scope, bringing in such aspects as the constraints of seismic topography, and mantle convection in other planetary bodies. The thicknesses of these boundary layers are of the same order because the relevant speeds of convection are the same for both. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withconvectionconvectionThese are words often used in combination with convection. Click on a collocation to see more examples of it. atmospheric convection Shortly thereafter, it lost most of its atmospheric convection and initially showed few signs of development as it moved westward. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. convection current If the water were fresh, the low-density warm water would float to the surface, causing a convectioncurrent. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. convection oven It allows food to be cooked quickly, yet come out browned or crisped, as from a convectionoven. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with convection |
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