CHAPTER8 NORMAL SHOCK WAVES AND RELATED TOPICS 第八章正激波及有关问题 Shock wave: A large-amplitude compression wave, such as that produced by an explosion, caused by supersonic motion ofa body in a mediun.激波是一个大振幅波如由爆炸产生的波及物体在介质中 超音速运动历引起的波 8.1 INTRODUCTION The purpose of this chapter and Chap. 9 is to develop shock-wave theory, thus giving us the means to calculate the changes in the flow properties across a wave 本章和第九章的目的是推导激波理论因而得出计算通过激波的 流动特性变化量的公式
CHAPTER 8 NORMAL SHOCK WAVES AND RELATED TOPICS 第八章 正激波及有关问题 Shock wave: A large-amplitude compression wave, such as that produced by an explosion, caused by supersonic motion of a body in a medium. 激波是一个大振幅波,如由爆炸产生的波及物体在介质中 超音速运动而引起的波. 8.1 INTRODUCTION The purpose of this chapter and Chap.9 is to develop shock-wave theory, thus giving us the means to calculate the changes in the flow properties across a wave. 本章和第九章的目的是推导激波理论,因而得出计算通过激波的 流动特性变化量的公式
The focus of this chapter is on normal shock waves, as sketched in Fig8. 1. The supersonic flow over a blunt body and the supersonic flow established inside a nozzle are shown in Fig.8. This portion of the bow shock is normal to the fow Normal shock inside the nozzle P >1‖M<I M>】 Flow over a xpanded f blunt body through a nozzle FIGURE 8. 1 Two examples where normat shock waves are of interest
The focus of this chapter is on normal shock waves, as sketched in Fig. 8.1. The supersonic flow over a blunt body and the supersonic flow established inside a nozzle are shown in Fig. 8.1
第八章的路线图 Derivation oi the basi normal shock equations Speed of sound Special forms of the energy equation when is a flow compressible? Derivation of detailed equations for the calculation of changes across d normal shock wave: discussion of phy]ai trends Compressible airspeed measurements b means of a Pitot tube FIGURE 8.2 Road map for Chap. 8
第八章的路线图:
正激波基本控制方程的推导 音速 能量方程的特殊形式 什么情况下流动是可压缩的? 用于计算通过正激波气体特性变化的方 程的详细推导;物理特性变化趋势的讨论 用皮托管测量可压缩流的流动速度 图82第八章路线图
正激波基本控制方程的推导 音速 能量方程的特殊形式 什么情况下流动是可压缩的? 用于计算通过正激波气体特性变化的方 程的详细推导; 物理特性变化趋势的讨论 用皮托管测量可压缩流的流动速度 图8.2 第八章路线图
8.2 THE BASIC NORMAL SHOCK EQUATIONS 正激波的基本方程 P pTM M 2 x direction u2 Unknown conditions Po. 0,2 behind the h h02 wd 02 The shock wave is a thin region of highly viscous flow. The tio through the shock is adia batic FIGURE 8.3 but nonisentropic sketch of a normal wave 激波是很薄的、具有强粘性的区域。通 过激波流动是绝热的但不等熵
8.2 THE BASIC NORMAL SHOCK EQUATIONS 正激波的基本方程 激波是很薄的、具有强粘性的区域。通 过激波流动是绝热的但不等熵