advection，读音：英 [?d?vekt??n]；美 [?d?vekt??n]
advection的基础释义：
1. 随流运动
2. 传质
advection的英语范文：
In fluid mechanics, advection is a type of transport that occurs when a fluid moves and carries matter with it. It is a process where particles are transported through a fluid by the motion of the fluid itself, rather than by diffusion or convection.
For example, consider a river flowing downstream. Water molecules are transported downstream with the flow of the river, and they carry any particles that are suspended in the water with them. This is advection, because the particles are transported by the motion of the fluid itself, rather than through diffusion or convection.
Advection is important in many different contexts, including atmospheric science, oceanography, and engineering. It can be used to study the motion of particles in a fluid, or to model the transport of pollutants in a river or lake. Understanding advection is crucial for accurately predicting and understanding the behavior of fluids.
In summary, advection is a type of transport that occurs when a fluid moves and carries matter with it. It is important in many different contexts, and understanding it is crucial for accurately modeling the behavior of fluids.
advection
Advection is a process in fluid mechanics where a quantity is transported by a fluid flow. It is a common phenomenon in nature and engineering systems, and can have significant impacts on the behavior of the system.
In the context of fluid flow, advection occurs when a fluid particle moves with the flow of the surrounding medium. This can result in the transport of substances, such as heat or momentum, without any change in their chemical composition or state. This process is important in many applications, such as atmospheric and oceanic circulation, as well as in engineering systems, such as fluid-based power generation and heat transfer in industrial processes.
Advection can have both beneficial and adverse effects on a system. On the one hand, it can facilitate the transport of materials to desired locations, such as in the case of heat transfer in a heat exchanger. On the other hand, it can also lead to unwanted transport of materials away from their intended locations, such as in the case of pollutants in the atmosphere. Therefore, it is important to understand the mechanisms of advection and its effects on a system in order to design effective control strategies.
In conclusion, advection is a fundamental process in fluid mechanics that can have significant impacts on the behavior of systems. Understanding its mechanisms and effects is crucial for designing effective control strategies that take advantage of its benefits and minimize its adverse effects.
Advection
Advection is a process where a quantity moves with the flow of a fluid. It occurs when a force acts on a fluid element and causes it to move with the flow of the fluid around it. In fluid dynamics, advection is one of the basic transport processes that describe how particles move through a fluid.
In nature, advection is seen in many different contexts. For example, air currents can transport heat and moisture from one place to another. Similarly, ocean currents can transport nutrients and carbon from one region to another, which can influence the growth of marine life.
Advection is also important in engineering applications. For instance, in fluid mechanics, advection plays a role in how air flows through a car's air conditioning system or how water flows through a pipe system. In climate modeling, advection is used to describe how weather patterns move across the Earth's surface.
Advection can also have a significant impact on the behavior of particles in a fluid. For example, particles that are lighter than the surrounding fluid will be transported faster than heavier particles. This can lead to the formation of patterns and structures in a fluid, such as waves and turbulence.
In conclusion, advection is an essential process that describes how particles move through a fluid. It occurs naturally in many contexts and is also important in engineering applications. Understanding advection can help us better understand and predict the behavior of fluids and particles in them.
