激波增壓 的英文怎麼說
中文拼音 [jībōzēngyā]
激波增壓
英文
pressure rise across shock envelope-
The results show : laser beam far field intensity distribution deflect to the wave length increasing direction, the influence to laser beam far field intensity distribution of different inflow mach number is little than the influence of different inflow pressure ; flow field has more aberration to 1. 315um laser beam than to 10. 6um laser beam
研究表明激光束遠場強度分佈都向流場光程增大的方向偏折,噴流出口馬赫數的變化對激光束遠場強度分佈的影響較小,噴流出口壓力的變化對激光束遠場強度分佈的影響較強;在相同的流場結構下,流場對波長1 . 315 m激光束的干擾要明顯強于對波長10 . 6 m激光束的干擾。The method permits the calculation of the three stages of shock wave evolution, and gives the temporal and spatial relationship of peak pressure, velocity, and profile of shock wave
文中採用流體動力學模型,解析地描述了脈沖強激光輻照靶材時,激波的產生及增強、維持和衰減規律,給出了激波峰值壓力、激波速度、激波波形的時空關系。The revision on the pressure broadening of miniature optically pumped submillimeter wave laser
小型光泵亞毫米波激光理論計算的壓力增寬修正Finally, the two dimensional flow in the diffuser is calculated, the results show that the change of ma makes an effect to the performance of the diffuser. owing to the accretion of ma, the action of oblique shock waves and the boundary layer pricks up, the flow separates from the wall where the shock waves impinge on the boundary layer more quickly, the cluster of diamond shock waves becomes larger. moreover, by comparing the change of flow field under different structure parameter, it is found that the augment of length of constant area section alter the structure of fluid field little, a smaller area ratio and larger angle of compression section make the diffuser working better
最後,針對擴壓器中的二維流場進行了數值模擬,結果表明馬赫數對擴壓器性能影響較大,隨著馬赫數的增大,擴壓器管道內激波-附面層干擾加劇,流動從附面層分離相應加劇,激波串數目增多;通過比較不同結構參數下的擴壓器內流場,發現等直段長度的變化幾乎沒有改變流場結構,只是對局部流場稍有影響,並且在其它參數不變的情況下,一定范圍內減小面積比a2 / a1和增大收縮角有利於擴壓器性能的提高。Microwave plasma chemical vapor deposition ( mpcvd ), a kind of chemical vapor deposition method with low temperature , low intensity of pressure and clearance , is commonly used for the growth of diamond thin films
微波等離子體增強化學氣相沉積法( mpcvd法)是眾多低氣壓下激活cvd工藝方法的一種,也是目前在國內外比較流行的制備金剛石薄膜的工藝方法之一。分享友人