basic flow patterns in 3 types of suction boxes are studied respectively by both numerical calculation and model test, and the essential hydraulic indexes are listed. the boxes, including elbow inlet, bell-like inlet and dustpan-like inlet, are usually applied for vertical pump of low head.

采用數(shù)值計(jì)算和模型試驗(yàn)的方法分別研究了低揚(yáng)程立式泵裝置常用的肘形鐘形和簸箕形等三種形式進(jìn)水流道的基本流態(tài)秋葵视频卓版安装，給出了表達(dá)這三種形式進(jìn)水流道水力性能的主要指標(biāo)国产强奸中文字幕系列精品片。

This paper referred to simulating the supersonic double cone inlet" s flow field of ramjet pill assisted range projectiles at a variety of working circumstances, pressure contours, density contours and Mach number contours of inlet" s flow field were given When cone combination, relative location of cone core and cowl lip, the pressure of outlet, inflow Mach number and angle were changed, flow field and performance parameters of inlet can be affected. Simultaneity, productive mechanism and inducing factors of the inlet surge were also discussed. Then the best working conditions and the best model of inlet were obtained.

本文對(duì)沖壓增程彈丸所用發(fā)動(dòng)機(jī)的雙錐超聲速進(jìn)氣道在各種工況條件下的流場(chǎng)進(jìn)行了數(shù)值模擬，給出了進(jìn)氣道流場(chǎng)的等壓線圖一级少妇A片无、等密度線圖和等馬赫線圖看片色色，從而觀察在不同的錐尖角組合、錐芯與外罩唇口的相對(duì)位置樱花aⅴ一区二区三区四区、出口反壓一道本在视频线高清无码、來流馬赫數(shù)和攻角時(shí)，對(duì)進(jìn)氣道流場(chǎng)及性能參數(shù)的影響人人干人人操福利，并探討喘振現(xiàn)象的產(chǎn)生機(jī)理及誘導(dǎo)因素国产一级无码毛片，以便確定最佳的工作狀態(tài)，得到最優(yōu)的進(jìn)氣道模型国产av中文字幕。

The solid flow rate of downflow of inlet gas was slightly less than that of horizontal flow of inlet gas. But the standard deviation of pressure signals of downflow of inlet gas decreased significantly, causing more stable operation.

由不同通氣方向來看亚洲精品自拍视频网，通氣方向向下時(shí)的固體流量雖略小於水平方向通氣，但可使下降管中的壓力擾動(dòng)明顯減少国产免费永久黄色精品，即可得到較穩(wěn)定的操作一级毛片免费看高清视频在线。

The result shows that multiple inlet is better than single inlet, and that inlet with buffer is better than that without buffer. Other optimal design structures are also adopted. The gas manifold with optimal structure make oxygen much evener for each cell.

結(jié)果表明多進(jìn)口比單進(jìn)口，有比無隔板一级毛片免费黄色视频、擴(kuò)壓型進(jìn)口比非擴(kuò)壓型進(jìn)口插操水视频、橢圓臺(tái)進(jìn)口比圓臺(tái)進(jìn)口的進(jìn)氣箱結(jié)構(gòu)更易實(shí)現(xiàn)電池堆中每個(gè)單電池進(jìn)氣量的均勻化。

Therefore, the relations among tidal inlet velocity, cross-sectional area, inlet length, phase lag and repletion coefficient as well as the effect of drift sand along the coast on the inlet have to be analyzed.

綜合論述了潟湖潮汐通道口門之流速欧美黄色网站址、斷面面積www.xx日本黄色视频.com、通道長(zhǎng)度、延時(shí)角和飽滿系數(shù)之間的關(guān)系激情.com，以及沿岸漂沙對(duì)口門的影響操逼视频大全网站。

The main research findings were as follows. The flow state at the draft tube inlet was specially discussed,suggesting the method of giving inlet boundary of draft, and then periodicity circumvolve inlet was modeled,achieved by User Fortran.

主要研究成果有：通過分析尾水管進(jìn)口的流動(dòng)狀態(tài)能看av网站，提出了尾水管進(jìn)口邊界條件的給定方法，建立了尾水管進(jìn)口周期性旋進(jìn)非定常速度模型力色阁国产，并采用User Fortran實(shí)現(xiàn)之激情一级。

The emission of N_2 in discharge gap is detected using optical emission spectrophy. The discharge reactor was put in lightproof box to avoid the disturbance from outside lights. A small hole was drilled in one sidewall of the box, and the fibre was mounted coupling to the inlet (1mm) into the hole. A tube with the inner diameter of 1.1mm was set in the front of the hole. In this way, only the light from a certain direction emitted from the discharge reactor could transfer into the inlet through the tube. The reactor could be moved in the vertical direction of the fibre, and the spectrometry can collect the total emission along the fibre inlet in single-shot measurement.

利用光學(xué)發(fā)射光譜儀對(duì)多針對(duì)板電暈放電中放電間隙內(nèi)的N_2發(fā)射光譜進(jìn)行測(cè)量，放電反應(yīng)器置于暗箱中以避免外界對(duì)光譜測(cè)量的影響日本性爱不卡，將光譜儀的光纖耦合入口固定在暗箱側(cè)壁的小孔內(nèi)第一次处破女18分钟网站，小孔孔徑為光纖耦合入口直徑，在小孔前方安裝孔徑為1.1mm的細(xì)直管亚洲国产成AV人天堂无码，只采集與光纖耦合入口在同一直線上的發(fā)光，避免放電區(qū)其它區(qū)域的發(fā)光被同時(shí)接收人人操人人污。

The assistant air inlet is not connected with the installing part, and the assistant air inlet is slantways connected with main air inlet at the upper part of the frame.

該輔助進(jìn)氣道與該裝設(shè)部設(shè)置為不連通爱爱大学网址入口，且輔助進(jìn)氣道自該框體的上半部?jī)A斜地連通該主進(jìn)氣道。

The computational results indicate that surface catalytic combustion restrains gas phase combustion. Inlet velocity and tube diameters have important influence on catalytic combustion of hydrogen. For smaller inlet velocities,reaction is dominated by gas phase combustion. As the inlet velocity increases,there exist both surface catalytic combustion and gas phase combustion. For bigger inlet velocities,reaction is dominated by surface catalytic combustion. The temperature of flame core decreases with the decrease of tube diameter.

計(jì)算結(jié)果表明人人干干免费黄色视频9，表面催化反應(yīng)對(duì)空間氣相反應(yīng)有抑制作用一级a做一级a做片性视；入口速度和管徑對(duì)氫氣的催化燃燒過程有重要的影響，在入口速度較小時(shí)免费人妻系列无码专区，燃燒主要是空間氣相化學(xué)反應(yīng)日本va欧美在线看免费，隨著入口速度的增大，燃燒過程同時(shí)存在著表面催化反應(yīng)和空間氣相反應(yīng)兩種控制因素十次啦国产精品91，在入口速度較大時(shí)先锋每日资源网站，燃燒主要是表面催化燃燒過程；隨著管徑的減小www.一级av在线免费观看，微型管道內(nèi)反應(yīng)的最高溫度降低黄色在线观看1区。

In the invention, the water outlet of a circulating pump is connected with the water inlet of a solar energy collector; a water check valve is arranged on a water circulating pipe between the water outlet of the circulating pump and the water inlet of the solar energy collector; the water outlet of the solar energy collector and the water outlet of a water supply pump are connected with the water inlet of a heating coil; the water inlet of the circulating pump and the water inlet of a drain pump are connected with the outer outlet of the heating coil; the water inlet of the water supply pump is connected with the water outlet of a water storage tank; and the water outlet of the drain pump is connected with the water inlet of the water storage tank.

本發(fā)明的循環(huán)水泵的出水口與太陽能集熱器的入水口連接，水止回閥設(shè)置在循環(huán)水泵的出水口與太陽能集熱器的入水口之間的水循環(huán)管路上亚洲一级片综合视频，太陽能集熱器的出水口和補(bǔ)水泵的出水口都與加熱盤管的入水口連接久久费视频黄片视频，循環(huán)水泵的入水口和泄水泵的入水口都與加熱盤管的出水口連接，補(bǔ)水泵的入水口與儲(chǔ)水箱的出水口連接激情欧美性色日韩，泄水泵的出水口與儲(chǔ)水箱的入水口連接国产一级女高潮拍拍。