What is VortexHealing Energetic Therapy?

Vortex is sometimes called a vortex. It refers to a flow phenomenon in which a cylinder with a small radius rotates in a stationary fluid, causing the surrounding fluid to make a circular motion. Generally, there is a dense area of vorticity inside the vortex, called the vortex core, and its motion is similar to that of a rigid body. The cylinder is similar to the vortex core of a vortex. On the outside, the peripheral velocity of the fluid is inversely proportional to the radius; on the inside, it is proportional to the radius, and the peripheral velocity is zero on the vortex center. Vortex is an important flow phenomenon in the flow of an aircraft, and it has a significant impact on the aerodynamic characteristics of the aircraft (see wing aerodynamic characteristics and fuselage aerodynamic characteristics). Generally speaking, vortices formed by flowing water are called vortices, and vortices formed by the atmosphere may form tropical cyclones or tornadoes.

Chinese name: vortex
Foreign name: Vortex

nickname: Vortex
Definition: Rotating motion of fluid mass

Vortex analysis

Vortex physical analysis

Vortex, sometimes called vortex, is the rotational movement of a fluid mass. Generally, there is a dense area of vorticity inside the vortex, called a vortex core. Its motion is similar to that of a rigid body, and its speed is proportional to the radius. Outside it, the peripheral velocity of the fluid is inversely proportional to the radius.

Vortex is a form of vortex, which specifically refers to uneven, irregular vortices of various sizes in turbulent motion. Its size is as large as the extension of the entire turbulence. For example, in the turbulent boundary layer, the largest vortex is of the same order as the thickness of the boundary layer; the smaller one is as small as the molecular viscosity for momentum exchange. In turbulent motion, the vortices are stretched from large to slightly smaller, smaller, and smaller vortices of various sizes due to the mutual stretching mechanism of the vortices. Vortex

Small area air vortex The rotational energy is then transferred from the large vortex to the smaller vortex, and then to the smaller vortex, until the smallest level of viscous stress directly acts to convert the rotational kinetic energy into thermal energy and dissipate it.

When using the theory of inviscid ideal fluid to study the flow around the wing, many concepts of ideal vortices need to be applied. For example, a concentrated vortex (or linear vortex) with a zero vortex core radius has an infinite velocity on the vortex center; the vortex surface formed by countless concentrated vortices is a discontinuous surface of tangential velocity; in steady flow, the vortex axis and The vortices that are consistent everywhere in the direction of the air velocity are free vortices, otherwise they are attached vortices; vortices that do not withstand pressure differences in the flow field are called free vortices, otherwise they are attached vortices. These ideal vortices are the basis of the lift line theory and lift surface theory of a finite wingspan wing. There are also detached vortices and wake vortices in the actual flow field.

There are several important physical quantities to describe the vortex motion ^[1] :

Vorticity : Let v be the velocity vector, then = v is defined as the vortex vector, referred to as vorticity.

Vortex: The curve that is tangent to the vortex vector everywhere is called the vortex, and it consists of different fluid particles at the same time. Each fluid micelle on the vortex line rotates around the tangential direction of the vortex line.

Vortex tube: Take a non-vortex and non-intersecting closed curve L in the vortex field, and all the vortices through it form a tubular curved surface, called the vortex tube. If the curve L is infinitely small, it is called a vortex element. If the vorticity of the fluid around the vortex tube is zero, the vortex tube is called an isolated vortex tube

Vortex vortex

Detachable vortices separated from the leeward side of the projectile or the pointed leading edge of the wing. They are all free vortices, and the vortex intensity increases in the downstream direction until they become wake vortices. After they emerge from the separation line, the end of the vortex layer is rolled into a vortex with a vortex core. The picture shows the photo of the center of the detached vortex on the upper surface of the delta wing by the smoke method. Prior to the vortex rupture, the wing created additional vortex lift due to the low pressure at the vortex. After the vortex broke, it suddenly diffused and formed turbulent clusters. The figure also shows two forms of rupture. The upper part is a spiral-type rupture, and the lower part is a vortex-type rupture. After the vortex ruptured above the wing surface, the lift suddenly dropped and the pressure center moved forward.

Vortex wake

Wake vortices are detached vortices that flow around the leeward surface of a two-dimensional cylinder, including the famous Carmen vortex street, and vortices that begin to roll up at the trailing edge of the wing. After a certain distance, the wing wake vortex gradually rolled into a pair of vortices with vortex cores (also called wingtip vortices). Thereafter, due to convection and viscous dissipation of the vorticity, the vortex radius gradually expanded, and the internal pressure and velocity gradually approached the value of the incoming flow. The wake vortex of a large aircraft can have disastrous consequences for a small aircraft in the wake area. The wake vortex of a supersonic aircraft can travel far away.

Vortex Life Vortex

Sometimes vortices can be clearly seen, such as tornadoes in the atmosphere, vortex areas behind bridge piers, vortices generated by paddles when rowing, etc .;

tropical wind There are many small vortices that are not easy to observe, such as small vortices in the boundary layer of objects when they are moving in a fluid, and random vortices in turbulence. The vortex intensity can be expressed by vortex flux or velocity loop. Vortex flux is the flux of vorticity passing through a section S, and the vorticity at a point in the vortex is twice the average angular velocity of the fluid micelles rotating around that point, and the direction coincides with the instantaneous rotation axis of the micelles. The generation of vortices is accompanied by the loss of mechanical energy, which creates fluid resistance to the object and reduces its mechanical efficiency. However, in aerodynamics, it is the vortex that makes the wing gain lift. In the water conservancy project, the vortex formed at the drain is used to consume water flow energy to protect the dam foundation from being washed down by the rapid water flow.

Vortex Tide Water Vortex

The large-scale vortex produced by the interaction of high tide and low tide is called a swirling ocean current. The downward movement of the center is called a vortex, which occurs when there are relatively deep narrow passages on the coast and sea floor terrain. Vortex movements in rivers are slightly different. At a certain stage of turbulence, a rotating water stream with an upward movement in the center, called a surge, is easily seen on the water. There are some famous large vortexes in the world, such as Garofalo vortex, Messina vortex, Melstrom vortex, Naruto vortex and so on. There is a 1.3 km long narrow waterway between Awaji Island and Shikoku called Naruto Strait. The vortex is a phenomenon caused by the difference between the tide level of the Seto Inland Sea and the Outer Sea. When the seawater passes through the narrow Seto, the tide becomes sharp, and the reefs passing through the road form a large vortex. When the tide is full, vortices are created on the side of the Kii Strait when the tide is ebb. Spring and autumn tide days are the best time to watch the tide. There is a 450-meter-long promenade in the truss of Naruto Bridge, and a new sightseeing spot of Naruto Whirlpool is provided at the front end with a retrospective lookout facility. Looking down from a height of about 45 meters at sea through glass windows, the vortex is breathtaking and thrilling. The vortex here can reach 20 meters in diameter. The picture above is a large vortex taken at Naruto.

Vortex tropical cyclone

Tropical Cyclone is a low-pressure weather system. It is located on the surface of the tropical area at an average height of 3-5 latitudes from the equator.

tropical wind (Such as the North and South Pacific, the North Atlantic, and the Indian Ocean). Other movements are mainly affected by Coriolis forces and other large-scale weather systems, and eventually dissipate at sea, transform into temperate cyclones, or dissipate after landing on land. Landing tropical cyclones can cause severe property or human casualties, and are a type of natural disaster caused by weather. However, tropical cyclones are also a component of the atmospheric cycle, which can bring thermal energy and the angular momentum of the Earth's rotation from the equatorial region to higher latitudes.

The biggest feature of a tropical cyclone is that its energy comes from the latent heat released by water vapor during cooling and solidification. Other weather systems such as temperate cyclones are mainly caused by air temperature differences on the cold north horizon. After a tropical cyclone has landed, or when a tropical cyclone moves to a lower-temperature ocean, it loses its supply of energy due to the loss of warm and humid air, and weakens or dissipates or turns into a temperate cyclone.

The tropical cyclone's airflow revolves around the center under the influence of the Coriolis force. Tropical cyclones rotate counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.

Different regions have different names for tropical cyclones. China, Taiwan, Japan, Vietnam, the Philippines, and other places along the western Pacific coast are customarily called local tropical cyclones as typhoons. The Atlantic is used to calling local tropical cyclones hurricanes. Tropical cyclones are also called differently elsewhere, and in Australia they are called "power." In meteorology, only tropical cyclones whose wind speed reaches a certain level will be named as "typhoon" and "hurricane".

Water rotates during rapid movements, so it forms a so-called "vortex" or "vortex".

Vortex related content

Rotating motion of fluid mass. In nature, vortices are sometimes clearly visible, such as in the atmosphere

Ocean vortex

Tornadoes, vortex areas formed by the current behind the bridge pier, vortices generated during boating, and so on. But in more cases, it is not easy to detect the existence of vortices. For example, when an object moves in a real fluid, a very thin boundary layer is formed on the surface of the object, and each point in this thin shear layer is a vortex; for example, the turbulent motion that exists in nature in large quantities is full of different scale Vortex, these vortices are indistinguishable to the naked eye.

The generation of vortex is accompanied by the loss of mechanical energy, which causes fluid resistance or reduces its mechanical efficiency with respect to objects (aircraft, ships, water turbines, steam turbines). But, on the other hand, it is the vortex that makes it

Aircraft vortex The wings gained lift. In a water conservancy project such as a spout, in order to protect the dam foundation from being washed away by the rapid water flow, energy dissipating equipment is used to artificially create a vortex to consume the kinetic energy of the water flow. These are the practical backgrounds for studying vortices.