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Air film resistance reduction system and method and high-speed train

A technology of air film and air film hole, which is applied in the direction of railway car body, railway car body parts, climate sustainability, etc., can solve the problems of large processing volume and impact strength, achieve good aerodynamic performance, reduce medium resistance, reduce The effect of operating energy consumption

Pending Publication Date: 2019-10-29
NINGBO III LASERS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is necessary to process a large number of micro-holes with a diameter of less than 0.4 mm on the surface of the object. The processing volume is huge and affects the strength.

Method used

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  • Air film resistance reduction system and method and high-speed train
  • Air film resistance reduction system and method and high-speed train
  • Air film resistance reduction system and method and high-speed train

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Embodiment Construction

[0061] The present invention is described in detail below in conjunction with examples, but the present invention is not limited to these examples.

[0062] In this article, the loading device refers to various existing tools that have the function of transporting large-volume materials such as goods or people, including but not limited to automobiles, high-speed trains, airplanes, torpedoes and other devices. Medium refers to the environmental substances in which the ride-on device operates, including but not limited to various liquids, various gases or various solid environments. The resistance-bearing surface refers to the surface of the load-carrying device that mainly bears the resistance from the environmental medium during operation. The main resistance-bearing surface refers to the surface of the load-carrying device that bears the greatest resistance from the environmental medium.

[0063] see figure 1 , the present invention provides an air film drag reduction syst...

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Abstract

The invention discloses an air film resistance reduction system and method and a high-speed train. The air film resistance reduction system comprises an air film part and an air supply unit; the air film part is connected with an air way of the air supply unit; the air film part comprises an air hole piece, an air film hole is formed in the air hole piece, and the air film hole is obliquely arranged on the surface. By obliquely forming the air film hole, a large-area air film is formed on the resistance bearing surface; an external far field medium with large resistance is caused by isolation,air-solid coupling viscous drag formation is avoided, viscous drag adopting air-air or air-liquid coupling as the main part is formed, and therefore the medium resistance borne by an object moving athigh speed is lowered.

Description

technical field [0001] The invention relates to an air film drag reduction system, a method and a high-speed train, belonging to the field of drag reduction engineering. Background technique [0002] For various types of rides moving in a non-vacuum environment, the surrounding medium will produce resistance to their movement, and the external resistance will increase with the increase of the speed of the ride, thereby reducing the running speed of the ride. In order to achieve and maintain high operating speeds, a large amount of fuel needs to be consumed to generate the power to overcome this drag. As fuel consumption increases, operating costs also directly increase. [0003] During the operation of various types of load-carrying devices, the higher the speed of the load-carrying device, the greater the medium resistance it receives, which may even account for more than 90% of the resistance of the load-carrying device. Taking a train in normal operation as an example, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D17/02
CPCB61D17/02Y02T30/00
Inventor 张文武张天润郭春海
Owner NINGBO III LASERS TECH CO LTD
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