|Table of Contents|

Optimal design of wide-speed range two-dimensional inlet with free configuration(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2022年06期
Page:
92-100
Research Field:
目次
Publishing date:

Info

Title:
Optimal design of wide-speed range two-dimensional inlet with free configuration
Author(s):
WANG Jianlei;  MU Huan;  GONG Chunlin
(Shaanxi Aerospace Flight Vehicle Design Key Laboratory, School of Astronautics, Northwestern Polytechnical University, Xian 710072, China)
Keywords:
wide-speed range aircraft two-dimensional inlet free configuration optimal design
PACS:
V221.3
DOI:
-
Abstract:
Two-dimensional air inlet is often used in wide-speed range air-breathing aircraft. Compared with cruise-type aircraft,the flight speed range of wide-speed range aircraft is larger,and it is difficult for the inlet to meet the flight requirements under both high-speed and low-speed conditions. A design method for the two-dimensional inlet with free-configuration is proposed in this paper. It uses the category shape function method to parametrically model the compression surface of the two-dimensional inlet. The control parameters of the function as optimization variables are used to optimize the compression surface directly,and there is no need to select design points during the design. In addition,according to the matching relationship between the intake flow and the demand flow of engine,an objective function suitable for the optimal design of a wide-speed two-dimensional inlet is proposed. The results show that both the flow coefficient and total pressure recovery coefficient can meet the design requirements in the range of Mach number 2.5 to 8.

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