工程热物理学报
工程熱物理學報
공정열물이학보
JOURNAL OF ENGINEERING THERMOPHYSICS
2009年
12期
2017-2020
,共4页
气体射流%湍流掺混%瞬态测量
氣體射流%湍流摻混%瞬態測量
기체사류%단류참혼%순태측량
gas jet%turbulent mixing%transient measurement
为了探索整装式液体发射药燃烧稳定性的控制方法,本文设计了多级渐扩型圆柱观察室,采用高速录像系统,开展了含能气体射流在液体模拟工质中扩展形态的实验研究.实验结果表明,渐扩型结构尺寸、喷气压力、喷孔直径对泰勒空腔的扩展形态以及气液间的湍流掺混强度有显著影响,通过这些参数的合理匹配,可以在一定程度上实现对射流发展过程的控制.
為瞭探索整裝式液體髮射藥燃燒穩定性的控製方法,本文設計瞭多級漸擴型圓柱觀察室,採用高速錄像繫統,開展瞭含能氣體射流在液體模擬工質中擴展形態的實驗研究.實驗結果錶明,漸擴型結構呎吋、噴氣壓力、噴孔直徑對泰勒空腔的擴展形態以及氣液間的湍流摻混彊度有顯著影響,通過這些參數的閤理匹配,可以在一定程度上實現對射流髮展過程的控製.
위료탐색정장식액체발사약연소은정성적공제방법,본문설계료다급점확형원주관찰실,채용고속록상계통,개전료함능기체사류재액체모의공질중확전형태적실험연구.실험결과표명,점확형결구척촌、분기압력、분공직경대태륵공강적확전형태이급기액간적단류참혼강도유현저영향,통과저사삼수적합리필배,가이재일정정도상실현대사류발전과정적공제.
An approach of using stepped-wall chamber geometry as a means of controlling the interior ballistic variability in bulk-loaded liquid propellant guns is investigated in this paper. Experimental study on the divergence form of energetic gas jet in the liquid is carried out. The expansion process of gas jet is record by a digital high-speed camera. The results show that the divergence form of Taylor cavity and the turbulent mixing intensity can be affected by the chamber geometry, injection pressure and nozzle diameter. Controlling the expansion process of gas jet can be achieved in some extent by adjusting these parameters.