Then the muzzle flowfield with muzzle brake was simulated with the aforementioned experience. Those complex phenomena including precursor shock caused by quickly moving of projectile, muzzle flow structure produced by propellant gases, affection of blast wave behind muzzle area which formed by leading angle of muzzle brake, etc, can be observed clearly by these simulations.

同時藉由此經(jīng)驗欧洲黄片毛片，模擬含炮口制退器之炮口流場欧美少妇一级黄片，獲得炮管內(nèi)因彈體高速移動產(chǎn)生之先導(dǎo)震波現(xiàn)象、高溫高壓之發(fā)射藥氣體於炮口形成之噴流結(jié)構(gòu)及制退器排氣導(dǎo)孔對后方震波壓力傳導(dǎo)之效應(yīng)等良好結(jié)果18禁无遮挡A片在线网站。

As the fast stellar wind runs into slow moving gas a shock front is formed, analogous to the bow wave of a boat moving through water or a plane traveling at supersonic speed.

當(dāng)高速的星際風(fēng)吹進(jìn)很緩慢流動的氣體99re热在线视频，一個沖擊波將會形成。就像是船頭震波无码秒播成人网站在线观看视频，或是飛機(jī)以超音速的速度進(jìn)行700AV在线视频。

The finite element and Newmark methods are employed to calculate the temperature field with thermal shock, and the wave effect of heat transfer implied by the hyperbolic equation is evaluated in detail.

采用有限元離散和Newmark方法計算熱沖擊溫度場，并總結(jié)了采用二次波動方程產(chǎn)生的波動效應(yīng)欧美一级片亚洲三级片。

Last step is to compute 71evel-3direction manpower wave incitation about the structure of the aqueduct bridge to study the displacement and stress of every parts about shock absorption.

最后對渡槽實際結(jié)構(gòu)進(jìn)行歷程分析狼友首页一区二区三区，對渡槽各部位的位移和應(yīng)力響應(yīng)進(jìn)行了減振效果的研究。

Detonation wave ; incombustible abrupt expansion pipe ; numerical simulation ; shock reflection

爆轟波亚洲玖玖在线第一页；不可燃突擴(kuò)管道亚洲小说图片网；有限體積法；激波反射

It summarize systematacially the elastic wave's propagation characteristic in the large blast of detonate,the design principle of shock insolation channel is given by calculation results.

系統(tǒng)總結(jié)了大型爆炸震中傳播的彈性播的特性一级黄色变态在线视频，計算定出隔震溝的設(shè)計原則欧洲黄片免费看。

This approach has the advantage that the contact discontinuity in each local wave pattern is always fixed with speed zero and the rarefaction waves and shock waves are located on either side.

這種方法的優(yōu)點(diǎn)是每個局部波形中的接觸間斷速度都為零，并且疏散波和激波分別位于時間軸的兩側(cè)丝袜脚交在线观看无码。

The evolution of the half-peak width of the relative density increment pulse with respect to slow wave also demonstrates the close relation to Δp. Its minimum w〓 decreases with the increase of Δp, which means, slow wave will steepen with the enhancement of Δp and may evolve into slow shock eventually. Numerical results also indicate that the propagation velocity of fast and slow wave increase when Δp increases.

對強(qiáng)擾動情形(Δp＝5)亚洲色成a在线网，通過考察相關(guān)物理量的徑向分布，并借助于對物理量沿波動陣面法向分布的討論，可以初步判斷出由強(qiáng)擾動所造成的慢模磁聲波在傳播過程中逐漸陡變而演化為慢激波无国产A片马上打开，慢激波在進(jìn)入日冕前已在色球?qū)又行纬啥肺蘼刖啡形模⒃诖撕蟮膫鞑ミ^程中始終保持這一性質(zhì)。

In the course of the impulse through underground mediator, because the physical property and the geometric property of mediator is non-uniform, wave form and wave amplitude will change very much and the impulse after shock性激情大迟度床上视频一区二区、antenna direction figure亚洲欧洲精品污网站在线观看、the couple degree of ground surface、system interfere欧美性爱网在线观看、non-uniform of the underground mediator欧美乱图、reflection surface's rough cause the disturb of radiation scatter and diffract will complex the figure .

脈沖在通過地下介質(zhì)的過程中，由于介質(zhì)的物性和幾何性質(zhì)的不均一性黄色一级成人网站免费，波形和波幅將發(fā)生較大的變化日韩美国一级欧美一级，而脈沖余振、天線方向圖形欧美色色.com、天線的地表偶合程度特殊黄色网、系統(tǒng)內(nèi)部的干擾、地下介質(zhì)的不均勻欧美性交操B、反射面不光滑等引起的輻射效率免费在线观看三级毛片、散射的變化以及剖面旁側(cè)的繞射等干擾，均使實時記錄圖像復(fù)雜化国产成人午夜福利影片在线播放网站。

For strong disturbance case in which Δp is set to be 5, by examining the distributions of relevant physical quantities along radial direction and the normal of wave front, we can infer that the slow wave introduced by the strong pressure pulse steepens into slow shock during the propagation process.

與二維情形類似欧洲天堂综合网，沿由源區(qū)出發(fā)的徑向，可以分辨出壓力脈沖增長相所引起的前導(dǎo)快波與后隨慢波的傳播第一福利在线观看，同時還可觀察到壓力脈沖恢復(fù)相所導(dǎo)致的快模磁聲波的傳播婷婷丁香五月天欧美中文，由于傳播速度的差異，該波動在向外傳播的過程中逐漸超過后隨慢波美国操逼网站。