Performance Investigation of Multi-Slot Ejector Nozzles for High Speed Exhaust System

WANG Qiang; ERI Qi-tai; WANG Hong-bo; ZHANG Jing

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Performance Investigation of Multi-Slot Ejector Nozzles for High Speed Exhaust System

更新时间：2026-07-07

- Performance Investigation of Multi-Slot Ejector Nozzles for High Speed Exhaust System
- Vol. 16, Issue 4, (2001)
- 作者机构：
  
  北京航空航天大学热动力工程研究所,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2001
- 稿件说明：
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WANG Qiang, ERI Qi-tai, WANG Hong-bo, et al. Performance Investigation of Multi-Slot Ejector Nozzles for High Speed Exhaust System[J]. 2001, 16(4).
DOI：

WANG Qiang, ERI Qi-tai, WANG Hong-bo, et al. Performance Investigation of Multi-Slot Ejector Nozzles for High Speed Exhaust System[J]. 2001, 16(4). DOI：

摘要

在基线发动机性能计算的基础上

利用引射喷管抽吸特性和二次流进气系统的流量平衡技术

研究并提出了一种多缝引射喷管方案

用于降低喷管超音段壁面的温度

并开发出多缝引射喷管尺寸与分析程序ENSAAP。利用该计算程序

可分别计算设计条件下和非设计条件下的冷却空气流量和安装多缝引射喷管后所造成的安装推力损失

以及安装多缝引射喷管对发动机重量和飞机航程的影响。本项研究为发展具有低可探测性的先进发动机排气系统提供了可行的冷却方案和设计基础。

Abstract

A computer program

so-called the Ejector Nozzle Sizing and Analysis Program (ENSAAP)

has been developed for ejector nozzle sizing and analysis.It was applied to the required ejector slot heights by using models of the slot pumping

secondary air induction system

engine cycle and slot cooling effectiveness.For an example

an engine cycle and aircraft mission has been used to demonstrate the inlet/ejector sizing process

as well as the performance sensitivities to an ejector installation.This program provides an approach to the optimization of advanced aircraft performance with reduced IR signature.

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Related Institution

中国航天科技集团有限公司航天推进技术研究院北京市航天动力试验技术与装备工程技术研究中心

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南京航空航天大学能源与动力学院

华北电力大学新能源电力系统国家重点实验室

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