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Design method and apparatus for diamond type forced transition apparatus of high-speed aircraft

A high-speed aircraft and design method technology, applied in the direction of instruments, calculations, special data processing applications, etc., can solve the problems of complex structure and difficult processing of the transition device, and achieve good transition effect, strong processability and operability strong effect

Active Publication Date: 2018-07-20
BEIJING AEROSPACE TECH INST
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Problems solved by technology

[0003] The present invention provides a high-speed aircraft diamond-shaped forced transition device design method and device to solve the technical problem of complex structure and difficult processing of the transition device designed by the forced transition device design method in the prior art

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  • Design method and apparatus for diamond type forced transition apparatus of high-speed aircraft
  • Design method and apparatus for diamond type forced transition apparatus of high-speed aircraft
  • Design method and apparatus for diamond type forced transition apparatus of high-speed aircraft

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with specific examples and accompanying drawings.

[0022] Such as figure 1 , image 3 and Figure 7 As shown, according to a specific embodiment of the present invention, a method for designing a diamond-shaped forced transition device for a high-speed aircraft is provided. The method for designing a forced transition device includes: Step 1. For the distribution of the limiting streamlines on the wall surface of the air inlet of the aircraft precursor, the distance range of the initial installation position of the forced transition device is determined under the condition that the flow direction installation position of the forced transition device is at least 0.5m away from the inlet of the air inlet; The distance range of the initial installation position of the transition device and the structural installation space of the high-speed aircraft are used to determine the installation position of ...

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Abstract

The invention provides a design method and apparatus for a diamond type forced transition apparatus of a high-speed aircraft. The design method for the forced transition apparatus comprises the stepsof 1, in a most difficult transition state of a flight condition, determining a mounting position of the forced transition apparatus and a first spanwise width of the forced transition apparatus according to limiting streamline distribution of the wall surface of a forebody inlet of the aircraft and a structure mounting space of the high-speed aircraft; 2, according to a flow field parameter of the wall surface of the forebody inlet of the aircraft, determining the thickness delta max of an enthalpy boundary layer with a maximum section in the mounting position of the forced transition apparatus; and 3, according to the thickness delta max of the enthalpy boundary layer with the maximum section in the mounting position of the forced transition apparatus, determining a size parameter of theforced transition apparatus. By applying the technical scheme, the technical problems of complex structure and difficult machining of the transition apparatus designed by a design method for the forced transition apparatus in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of high-speed aircraft forced transition device design, in particular, relates to a high-speed aircraft diamond-shaped forced transition device design method and device. Background technique [0002] Transition and turbulence are not only important basic aerodynamic issues for high-speed aircraft, but also key technical issues that restrict the development of high-speed aircraft. Boundary layer transition has a crucial impact on the start-up performance and engine performance of the scramjet engine inlet of high-speed aircraft. . For the air-breathing high-speed aircraft with the shape of a small-sized lifting body / waverider, due to the short length of the inlet of the precursor, the flow at the inlet of the inlet cannot be guaranteed to be turbulent in the natural flow state. Install a forced transition device to ensure that the flow at the inlet of the inlet is turbulent. However, the rough unit of the f...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15
Inventor 贾文利罗金玲符松汤继斌康宏琳吴宁宁
Owner BEIJING AEROSPACE TECH INST
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