|Table of Contents|

Design method of waverider with controlled horizontal projection of leading edge(PDF)

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

Issue:
2017年05期
Page:
20-27
Research Field:
研究与设计
Publishing date:

Info

Title:
Design method of waverider with controlled horizontal projection of leading edge
Author(s):
LI Yongzhou1; LI Guangxi1; ZHANG Kunyuan2; SUN Di3
1.Xi'an Aerospace Propulsion Institute,Xi'an 710100,China; 2.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China; 3.Xi'an Institute of Aerospace Propulsion Technology,Xi'an 710025,China
Keywords:
waverider;  projection shape;  streamline tracing;  blend function;  osculating plane
PACS:
V221-34
DOI:
-
Abstract:
A design method of waverider with controlled horizontal projection of leading edge is proposed in combination with streamline tracing technique and blend function of osculating plane,with which the waveriders with hyper elliptic horizontal projection of leading edge(Waverider-F)and with hyper elliptic leading edge to hyper elliptic trailing edge transition(Waverider-FT)are designed.Both of them are of high volume ratio and their corresponding axial projection of leading edges is approximate to cosine curve.The effectiveness of the design method was validated by numerical simulation.For design point,Waverider-F has good waverider characteristics and keeps the feature of reference flow field.The forepart of Waverider-FT is a complete waverider,but the flow field is transfigured by both sides' induced shock of rear part and exists high pressure region.Their waverider characteristics are also good at relay point.Moreover,they are of high lift-drag ratio and pre-compression efficiency.Under inviscid condition,their life-drag ratios are 3.46 and 2.88 for design point.In comparison with Waverider-F,the lift force,drag force and exit compression ratio of Waverider-FT are significantly increased,and the lift-drag ratio,pitching moment and exit total pressure recovery coefficient are decreased.Under viscous condition,the lift-drag ratio at the design point decreases from 2.91 to 2.41,its corresponding exit total pressure recovery coefficient reduces 5.8%.

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Last Update: 2017-11-10