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(shí)藉由此經(jīng)驗(yàn)免费看a在线，模擬含炮口制退器之炮口流場(chǎng)http://91.伊人.com，獲得炮管內(nèi)因彈體高速移動(dòng)產(chǎn)生之先導(dǎo)震波現(xiàn)象人人操人人射人人插、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(duì)后方震波壓力傳導(dǎo)之效應(yīng)等良好結(jié)果你懂网站在线。

So it is important to make research on muzzle flowfield, and analyze the effects of muzzle blast wave on the firing precision of gun.

所以對(duì)膛口流場(chǎng)進(jìn)行研究97无码免费公开在线视频，并分析膛口流場(chǎng)對(duì)彈丸的影響美女下部隐私扒开视频无遮挡，對(duì)于指導(dǎo)實(shí)驗(yàn)和改進(jìn)火炮射擊精度很有意義。

The computation results agree with the experiment results very well. The muzzle flow field of an artillery with a muzzle brake is also simulated. The main characteristics and the mutual relations of shock waves in the muzzle flow field are obtained by the simulation. On the basis of the simulation results, the influences of the brake holes on the muzzle brake capabilities are analyzed.

對(duì)某口徑火炮帶有制退器的膛口流場(chǎng)進(jìn)行了數(shù)值模擬88888视频搞基，其結(jié)果反映了制退器內(nèi)外流場(chǎng)的主要特征和沖擊波波系之間的相互作用玖玖色在线免费视频，在數(shù)值模擬的基礎(chǔ)上分析了3排側(cè)孔對(duì)制退器性能的影響8x8ⅹcom永久免费视频。

By using unstructured dynamic grid based on local remeshing method, the variation of grid caused by projectile movement was analyzed. Numerical computation results of gun muzzle flow field which arranged in time was obtained. The creation process of the complex flow field of gun muzzle was described. The numerical simulation of flow field including moving projectile was achieved.

采用基于局部網(wǎng)格重構(gòu)法的非結(jié)構(gòu)動(dòng)網(wǎng)格技術(shù)處理彈丸運(yùn)動(dòng)造成的網(wǎng)格變化，給出一系列按時(shí)間順序排列的膛口流場(chǎng)數(shù)值計(jì)算結(jié)果色色综合电影网站，描述了復(fù)雜的膛口流場(chǎng)形成發(fā)展過程久久婷婷国产麻豆91天堂，實(shí)現(xiàn)了含運(yùn)動(dòng)彈丸的膛口流場(chǎng)的數(shù)值模擬。

The muzzle is substantial with good depth, and the lips complete the square, clean look of the muzzle, without excess skin or flews.

嘴唇：整個(gè)唇線呈正方形国产精品黄片在线播放，在口吻上顯得整潔亚洲福利日韩看片无码，沒有多余的皮膚或下垂的上唇。

In the gun-like design, manufacturing process, the design of a very wide range of gun-shaped device to optimize the system for retirement options, retirement system has the effect of the performance of two prominent, like a Barrett sniper rifle is the flat square muzzle retirement system, and another retirement system is a circular muzzle device.

在樣槍的設(shè)計(jì)久操手机在线网站播放、制造過程中一级做a爱全免费视频在线，設(shè)計(jì)了很多種形狀的槍口制退器進(jìn)行優(yōu)化選擇，其中制退效果表現(xiàn)突出的有兩款亚洲a毛网站，一款是仿巴雷特狙擊步槍的扁方形槍口制退器91在线精品国自产拍，另一款是圓形槍口制退器。

The rest of the action is similar to the APS, but the muzzle is fitted with AKS-74U-style muzzle device / flash hider.

該行動(dòng)的其余部分類似接入點(diǎn)亚洲色图熟熟，但口吻與AKS - 74U式槍口裝置/焰裝置在线观看黄色视频一站。

Grace: You need to muzzle your dog.

muzzle：給戴口罩，使緘默你得叫你的&狗&安靜點(diǎn)欧美熟妇性爱A片在线A片视频。

Two main types of muzzle brakes named baffle type and light weight type have been designed for carrying out the simulation and analysis of muzzle flow in this research. The utilizing of parameters from simulations and some given conditions to impact deflectors of muzzle brakes to make the recoil part get a momentum to move forward in order to lower recoil force have been expressed in this research as well.

中文摘要本研究以折流板及輕量化兩種主要炮口制退器設(shè)計(jì)日本男人插女人，進(jìn)行炮口流場(chǎng)分析模擬，得到炮口周圍之壓力毛茸茸婊子、氣流速度清清草影院欧美日韩、密度及溫度等分布狀況；并利用模擬所獲得之?dāng)?shù)據(jù)配合已知之炮口條件沖擊炮口制退器之折流板欧美黄色性交一级大屏，造成火炮后座部份向前之動(dòng)量欧美在线视频播放，用以降低后座力，求出火炮裝置炮口制退器后呦呦网址，以炮口效率為主之各項(xiàng)相關(guān)參數(shù)美女黄色被插视频。

Based on the simulation of 3D unsteady muzzle brake flow field, computed the force given to the barrel while the powder flow through the muzzle brake, calculated the max backlash velocity, and lastly got the efficiency of muzzle brake.

該方法以帶炮口制退器三維非定常流場(chǎng)的數(shù)值模擬為基礎(chǔ)，通過計(jì)算火藥氣體流經(jīng)制退器時(shí)火炮身管的受力91黄色大片，計(jì)算出身管在火藥氣體作用下的最大自由后坐速度男插女黄色视频在线观看网址，進(jìn)而根據(jù)制退器效率的定義得到炮口制退器的效率。