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Near space airship and surface flow field control method thereof

A near-space, flow control technology, applied in the field of airships, can solve problems such as precedents have not yet appeared, achieve the effect of reducing power, increasing mission load, and improving overall aerodynamic performance

Pending Publication Date: 2018-09-14
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no precedent for the application of active flow control technology to the field of high-altitude airships in the world to improve the aerodynamic performance of high-altitude airships.

Method used

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  • Near space airship and surface flow field control method thereof
  • Near space airship and surface flow field control method thereof
  • Near space airship and surface flow field control method thereof

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] The near-space airship of the embodiment of the present invention uses flow control technology to change the surface flow field of the airship to improve the overall aerodynamic performance of the airship. Active flow control means mainly include air blowing and air suction, synthetic jet technology, plasma flow control methods, etc. In view of the difficulty of implementation, the embodiment of the present invention adopts the first method to control the surface flow field of the hull.

[0026] figure 1 A schematic distribution diagram of a flow control device according to an embodiment of the present invention is shown. figure 2 A schematic structural diagram o...

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Abstract

The invention discloses a near space airship and a surface flow field control method thereof. The airship comprises a housing, an airbag and a plurality of flow control devices, wherein the airbag isarranged in the housing; the plurality of flow control devices are arranged inside the housing; the flow control devices comprise an air duct, an air suction port and an air outlet; the air suction port and the air outlet are respectively formed in two tail ends of the air duct; the air suction port and the air outlet are communicated with the exterior of the housing; a fan is arranged inside theair duct and used for sucking air from the air suction port and discharging the air via the air outlet. According to the airship disclosed by the invention, by utilizing a flow control technology andby changing the surface flow field of the airship, improving overall aerodynamic performance of the airship and reducing power needed by wind resistance of the airship, the weight of an energy systemcan be greatly decreased, and mission loading of the near space airship is increased.

Description

technical field [0001] The invention relates to the technical field of airships, in particular to an airship in near space and a method for controlling a surface flow field thereof. Background technique [0002] The near space airship is a kind of aerostat. It has very broad application prospects in military and civilian applications: in military applications, near-space airships can be used as an information collection platform to achieve earth observation; in civilian applications, near-space airships can be used as transportation tools to transport materials. It is precisely because of the extremely broad application prospects and use value of near-space airships in military and civilian aspects that it has attracted great attention from many researchers in the world, and soon became a new international research hotspot. For the near-space airship, the main part of its buoyancy is a large air bag, which is filled with a buoyant gas (such as helium, hydrogen, etc.) that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64B1/62H02J7/35
CPCB64B1/62H02J7/35
Inventor 陈声麒周萌谢奎杨华中李翔李小建
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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