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)驗影音先锋网址资源在线播放，模擬含炮口制退器之炮口流場黄色做吊逼，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98欧美精品系列一区二区、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)果久久精品aⅴ无码中文字字幕重口。

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

所以對膛口流場進行研究亚洲欧洲日韩在线免费视频，并分析膛口流場對彈丸的影響，對于指導(dǎo)實驗和改進火炮射擊精度很有意義免费看污的欧美操。

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.

對某口徑火炮帶有制退器的膛口流場進行了數(shù)值模擬国产一级乱伦黄片，其結(jié)果反映了制退器內(nèi)外流場的主要特征和沖擊波波系之間的相互作用，在數(shù)值模擬的基礎(chǔ)上分析了3排側(cè)孔對制退器性能的影響亚洲玖玖色视频。

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)動網(wǎng)格技術(shù)處理彈丸運動造成的網(wǎng)格變化先锋av资源网站，給出一系列按時間順序排列的膛口流場數(shù)值計算結(jié)果，描述了復(fù)雜的膛口流場形成發(fā)展過程中文字幕的黄色网站，實現(xiàn)了含運動彈丸的膛口流場的數(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：整個唇線呈正方形伊人玖草，在口吻上顯得整潔www.人人干人人艹人人摸，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)計国产精品麻豆A片大全、制造過程中色淫影视a，設(shè)計了很多種形狀的槍口制退器進行優(yōu)化選擇，其中制退效果表現(xiàn)突出的有兩款黄片视频大全免费在线观看，一款是仿巴雷特狙擊步槍的扁方形槍口制退器免费久久性爱视频，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.

該行動的其余部分類似接入點国内免费久久久久久久久久10，但口吻與AKS - 74U式槍口裝置/焰裝置黄色视频免费在线无码观看。

Grace: You need to muzzle your dog.

muzzle：給戴口罩，使緘默你得叫你的&狗&安靜點亚洲日韩深夜福利高清。

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)計亚欧日本VA中文字幕久久，進行炮口流場分析模擬，得到炮口周圍之壓力黄色工厂精品视频、氣流速度日本欧美熟妇色一本在线视频、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在线观看日韩午夜福利电影网，造成火炮后座部份向前之動量日韩va精品，用以降低后座力，求出火炮裝置炮口制退器后先锋资原吧，以炮口效率為主之各項相關(guān)參數(shù)男人的午夜天堂国产一区。

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的數(shù)值模擬為基礎(chǔ)，通過計算火藥氣體流經(jīng)制退器時火炮身管的受力日韩网友自拍视频网站大全免费，計算出身管在火藥氣體作用下的最大自由后坐速度国内自拍av偷500拍视频，進而根據(jù)制退器效率的定義得到炮口制退器的效率。