The invention discloses a bidirectional detonation driving technology of a detonation driving shock tunnel. A medium-enthalpy test cabin and a high-enthalpy test cabin are arranged at two ends of a shock tunnel respectively, a high-temperature and high-pressure detonation combustion product formed after combustible gas is inflated into a detonation cabin and ignited breaks through a diaphragm rightwards to form a rightward incident shock wave, and medium-enthalpy gas is formed after shock wave compression and heating and applied to a test body, a left incident shock wave is formed after a diaphragm is broken leftwards, and high-enthalpy gas is finally formed after heating acceleration, enters a high-enthalpy test cabin and is applied to the test body, and medium-enthalpy and high-enthalpytests are completed at the same time through one detonation wave. When the shock tunnel is detonated, medium-enthalpy test airflow is realized by utilizing the advantage of reverse detonation driving,and high-enthalpy test airflow is realized by utilizing the advantage of forward detonation driving, so impact damage and gas waste are avoided, safety of the test process is enhanced, and operationcost is saved.
本发明公开一种爆轰驱动激波风洞的双向爆轰驱动技术,将激波风洞的两端分别设为中焓试验舱和高焓试验舱,向爆轰舱内充入可燃气体点燃后形成的高温高压爆轰燃烧产物向右冲破膜片后形成右行入射激波,经过激波压缩加热后形成中焓气体施加至试验体上;向左冲破膜片后形成左行入射激波,经过加热加速后最终形成高焓气体进入高焓试验舱内并施加至试验体上;通过一次爆轰波同时完成中焓和高焓两种试验。本发明在激波风洞爆轰时,利用反向爆轰驱动的优点实现了中焓试验气流,同时利用正向爆轰驱动优点实现高焓试验气流,避免了冲击破坏和气体浪费,增强了试验过程的安全性并节约了运行成本。
Bidirectional detonation driving technology of detonation driving shock tunnel
一种爆轰驱动激波风洞的双向爆轰驱动技术
2020-09-22
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
Performance of a detonation driven shock tunnel
AIAA | 2017
|Shock Reflection Detonation Initiation Studies for Pulse Detonation Engines
Online Contents | 2005
|