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Definitions And Classification Of Fluxes
Jun 26, 2017

   In fluid movement, the amount of an attribute that flows through an area of a unit in a unit time is the physical quantity that indicates the intensity of transmission of a certain attribute. In atmospheric science, momentum fluxes, heat fluxes, material fluxes, and water fluxes are included. To provide the basic data for the meteorological Department to carry out the research on the climate system model by acquiring long-term observational data of the typical ecosystem, such as heat, latent, momentum flux and CO2 flux. To provide basic data for the comprehensive and systematic study of ecological processes and microclimate, Earth-atmosphere interaction and water balance characteristics, atmospheric-ecological-microclimate-hydrological-soil interaction and impact mechanism, and provide basic information for short-term climate trend forecasting and climate change impact assessment.Flux
   Classification: Heat energy, which is absorbed or released by the phase change of matter, is called latent heat. Water vapor transport represents the potential of transport. The latent heat flux of the unit time through a certain area is called the latent heat flux. The latent heat flux is proportional to the concentration difference of water vapor on both sides of the section, which is called the latent heat transfer coefficient. Mass flux diffusion is one of the main mechanisms of physical mass transport such as material, heat and momentum. The diffusion of stationary fluids is mainly the diffusion of molecules driven by the concentration gradient, while in the fluid with intense motion, the turbulence is mainly diffused. In most cases, the diffusion phenomenon in the atmosphere is dominated by turbulent diffusion. In the diffusion process, the amount of diffusion in a plane perpendicular to the diffusion direction is called the flux of matter. $literal flux, $literal flux is an important characteristic parameter in the water cycle process of ecosystems. The water vapor transport of the terrestrial/atmospheric system is a link of the circulation, and it is also the carrier of the latent heat transport, which is the important influence factor of energy balance. Evaporation is the main form of water vapor transport in vegetation/atmosphere system. In agricultural meteorology, the surface of the earth is usually vaporized. In order to differentiate from soil evaporation, the evaporation from the plant body (mainly the leaf) is called transpiration. The evaporation of the underlying surface of vegetation can be divided into three parts: evaporation of surface or surface water, evaporation of canopy interception and plant transpiration. The sum of the three is called evapotranspiration or steaming divergence. Evaporation intensity or evaporation rate is actually water vapor flux. The integral value of time is called evaporation.Flux
   The physical quantity that represents the distribution of the magnetic field. The magnetic flux De of the surface element DS somewhere in the field is defined as the product of the magnitude B and DS in the projection Dscos perpendicular to the b direction, that is, the Chibdscos of the DFB is the angle between the normal direction N and the magnetic induction B of the surface element.Flux

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