Advection
Advection
Advection (/ædˈvɛkʃən/ ad-VEK-shən) is a term used in the field of medicine and physics to describe the transport of a substance or quantity by bulk motion in a fluid. The concept is widely used in the study of weather and oceanography, but also has applications in medical imaging and treatment.
Etymology
The term "advection" comes from the Latin word advehere, meaning "to carry to". It was first used in the context of fluid dynamics in the 19th century.
Related Terms
- Convection: A process that combines advection and diffusion, often used to describe heat transfer in fluids.
- Diffusion: The process by which particles spread from areas of high concentration to areas of low concentration.
- Dispersion: The spreading of a substance within a gas or liquid.
- Fluid dynamics: The study of how fluids behave when they're in motion.
- Vector field: A mathematical construct used to model advection and other physical phenomena.
In Medicine
In the field of medicine, advection is often used to describe the movement of fluids, such as blood, in the body. For example, the advection of blood in the circulatory system is a critical aspect of delivering oxygen and nutrients to tissues. In medical imaging, advection can refer to the movement of contrast agents through the body.
Advection is also a key concept in the treatment of diseases such as cancer. For instance, in chemotherapy, drugs are often delivered to the tumor site by advection. Understanding the principles of advection can help improve the effectiveness of such treatments.
External links
- Medical encyclopedia article on Advection
- Wikipedia's article - Advection
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