Method for determining pneumatic area of afterburner outer culvert with flow guide supporting plate

A technology for afterburner and determination method, which is applied in jet propulsion devices, machines/engines, special data processing applications, etc., and can solve problems such as inaccurate calculations and complicated calculation of afterburner aerodynamic area

Active Publication Date: 2021-09-07
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems, this application aims at the characteristics of the afterburner with diversion strut, and proposes a method applicable to the calculation of the

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  • Method for determining pneumatic area of afterburner outer culvert with flow guide supporting plate
  • Method for determining pneumatic area of afterburner outer culvert with flow guide supporting plate
  • Method for determining pneumatic area of afterburner outer culvert with flow guide supporting plate

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Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the field of aircraft engine design, and relates to a method for determining the pneumatic area of an afterburner outer culvert with a flow guide supporting plate. The method comprises the following steps: S1, performing outer culvert gas flow calculation on flow of outer culvert gas in the afterburner and a plurality of gas path partitions mixed with inner culvert gas, and determining the outer culvert gas flow ratio of each partition; S2, determining the geometric area proportion of the characteristic cross section of each partition; S3, determining an outer culvert pneumatic area correction coefficient according to the outer culvert gas flow proportion and the geometric area proportion; and S4, calculating the pneumatic area of the outer culvert according to the correction coefficient of the pneumatic area of the outer culvert. For the characteristics of the afterburner with the flow guide supporting plate, the invention provides a method suitable for calculating the pneumatic area of the afterburner outer culvert, and the problems that the pneumatic area of the afterburner outer culvert with the flow guide supporting plate is complex and inaccurate to calculate are solved.

Description

technical field [0001] The application belongs to the field of aircraft engine design, and in particular relates to a method for determining the aerodynamic area of ​​an afterburner with a diversion strut. Background technique [0002] Shielding the high-temperature turbine blades can effectively improve the backward infrared stealth performance of the turbofan engine. Turbine blades can be shielded by placing stealth struts in the afterburner and air cooling them. If the air-cooled deflector strut is installed in the afterburner, it is necessary to introduce the external air to cool it, and the flow of the external air becomes more complicated, and the difficulty of calculating the aerodynamic area of ​​the external air also increases significantly. The calculation method of the enclosed aerodynamic area used in the design of the afterburner is no longer suitable for this type of afterburner. [0003] The traditional third-generation afterburner generally has a relatively...

Claims

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Application Information

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IPC IPC(8): G06F30/20F02K3/06G06F113/08
CPCG06F30/20F02K3/06G06F2113/08
Inventor 马宏宇程荣辉姜雨曹茂国徐兴平刘宝刘伟琛陈伟博
Owner AECC SHENYANG ENGINE RES INST
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