Wikipedia defines it as: “In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime.” So, we get a basic idea that eddies are some sort of structures that ‘swirl’ or ‘twist’ or ‘spin’. Two of the great books in fluid dynamics define eddies as follows: 1. “Identifiable structures in a turbulent flow, particularly those that spin are called eddies.” - Fluid Mechanics, Authors: Pijush K. Kundu, Ira M. Cohen and David R Dowlin 2. “An 'eddy' eludes precise definition, but it is conceived to be a turbulent motion, localized within a region of size l, that is at least moderately coherent over this region. The region occupied by a large eddy can also contain smaller eddies.”- Turbulent Flows (Stephen B. Pope)
A vortex refers to a swirling motion of fluid or air, typically characterized by a center of rotation. Vortices can be observed in various natural and man-made systems, such as tornadoes, hurricanes, whirlpools, and even in the wake behind a moving object. Vortices are typically three-dimensional structures with a well-defined axis of rotation. On the other hand, an eddy is a localized swirling motion within a fluid or air flow. Eddies are often found in turbulent flows and can be thought of as small-scale vortices. They are typically two-dimensional structures and do not have a well-defined axis of rotation like a vortex. Eddies are transient and tend to form and dissipate within a fluid flow. Although both involve swirling motions within a fluid or air, however, they differ in terms of their size, structure, and longevity.
![How To Calculate A Vorticity [Fluid Mechanics]](http://i.ytimg.com/vi/wRQZz6VTWlY/mqdefault.jpg)
![How To Calculate A Vorticity [Fluid Mechanics]](/img/tr.png)
thanks so much!
what is its difference between eddy?
Wikipedia defines it as:
“In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime.”
So, we get a basic idea that eddies are some sort of structures that ‘swirl’ or ‘twist’ or ‘spin’.
Two of the great books in fluid dynamics define eddies as follows:
1. “Identifiable structures in a turbulent flow, particularly those that spin are called eddies.” - Fluid Mechanics, Authors: Pijush K. Kundu, Ira M. Cohen and David R Dowlin
2. “An 'eddy' eludes precise definition, but it is conceived to be a turbulent motion, localized within a region of size l, that is at least moderately coherent over this region. The region occupied by a large eddy can also contain smaller eddies.”- Turbulent Flows (Stephen B. Pope)
A vortex refers to a swirling motion of fluid or air, typically characterized by a center of rotation. Vortices can be observed in various natural and man-made systems, such as tornadoes, hurricanes, whirlpools, and even in the wake behind a moving object. Vortices are typically three-dimensional structures with a well-defined axis of rotation.
On the other hand, an eddy is a localized swirling motion within a fluid or air flow. Eddies are often found in turbulent flows and can be thought of as small-scale vortices. They are typically two-dimensional structures and do not have a well-defined axis of rotation like a vortex. Eddies are transient and tend to form and dissipate within a fluid flow.
Although both involve swirling motions within a fluid or air, however, they differ in terms of their size, structure, and longevity.
Thanks for the answer, 🎉
Nycc