wall jet 中文意思是什麼
wall jet
解釋
壁面射流-
The scariest trip was in a russian helicopter over the big china wall. i thought we were going to crash. i ve traveled in blimps, in jet airplanes, in the concord
我的天，我遇過很危險的事，其中最危險是：在我乘坐俄制直升機飛越中國長城的時候，我以為我們會墮機。 -
Inorfil flame retardant coating for jet plane, zinc silicate primer, high temperature resistant coating, anticorrosion painting of epoxy asphalt glass squama, top - grade interior and exterior wall coating, ultralow surface treatment coating, industrial terrace coating, ethyl silicate
硅酸鋅塗料、耐高溫塗料、環氧瀝青玻璃鱗片防腐塗料、高檔內外墻塗料、超低表面處理塗料、工業地坪塗料、硅酸乙酯 -
Application of the art of anti - seepage wall by jet cement with high pressure in flood control project
高壓噴射注漿法在公路工程施工中的應用 -
The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。 -
The jet impacts the companion galaxy at its edge and is then disrupted and deflected, much like how a stream of water from a hose will splay out after hitting a wall at an angle
噴流與伴星系的邊緣處發生碰撞，然後被打亂並反射，非常類似與從水管中噴出的水流從一定角度擊中一面墻壁產生的效果。 -
The cutoff wall near the dam axis, the consolidation grouting and the curtain grouting for the foundation, and the high pressure jet - grouted cutoff wall at the toe of the dam form a vertical anti - seepage system for the dam foundation
大壩軸線附近的防滲墻、基巖固結和帷幕灌漿，以及上游壩腳處的高壓擺噴防滲墻，在壩基構成了垂直防滲體系。 -
The jet - grouting has little change to dam structure. its construction is simple and lower cost, it has evident advantage to form dam foundation diaphragm - wall
高噴灌漿技術對壩體的原結構影響較小，施工較簡單，工程造價相對較低，對病險壩防滲加固具有較明顯的優越性。 -
By drilling to weak position, the jet - grouting technique breaks through and mixes with soil and stone of dam foundation to form diaphragm - wall
高壓噴射灌漿可由鉆機鉆孔至需處理的薄弱部位，通過高壓射流的沖擊攪拌，水泥漿在噴射范圍內與地層土石顆粒摻混攪合后形成防滲墻。 -
The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other
當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。 -
Concrete anti - leakage wall construction using the water - jet method
射水法造砼防滲墻施工方法 -
And then simulations of gas - particle two phase plane wake and gas - particle two phase plane jet were carried out by using this model. after numerical simulations of the two flow fields were finished, series of analytical work was done. first, the distribution of time - averaged velocity, turbulence intensity was analyzed, and some of the simulation results were compared with those of the experiments ; the coherent structure of vortices in the near wall region of the plane wake flow were studied by describing the evolution of the eddy structures, including the forming, developing and shedding from the wall of the vortices in the near wall region ; the coherent structure of vortices in the whole field was also studied, such as the forming, developing, moving, pairing and merging of the eddies etc.
在對上述兩種流動形態的二維大渦模擬研究中，首先全面地分析了氣相時均流場的速度、湍流強度的分佈規律以及氣相速度的脈動規律等並就部分數值模擬結果與實驗結果進行了對比研究；分析了平面尾跡流場中近壁處旋渦擬序結構，全面和逼真地反映了近壁處旋渦的生成、發展和脫落的規律；描述分析了平面尾跡流和平面射流的全場流動旋渦擬序結構，從整個流場的角度反映旋渦的生成、發展、運動以及旋渦之間相互配對、合併的作用規律等。 -
The bump height and secondary wall - impingement distance were discovered to play an important role in producing a secondary space jet, reducing the quantity of fuel stuck on the wall and forming lean mixture, and their suitable values being 1. 0 - 1. 5mm and 0 - 2. 0mm respectively
發現bump高度及二次撞壁距離對撞壁油束形成二次空間射流、減少壁面燃油堆積以及形成稀混合氣有重要作用，且發現bump的高度和二次撞壁距離分別為1 . 0 1 . 5mm和0 2 . 0mm比較合適。 -
Firstly, for jet array impingement cooling, the effects of the distance of adjacent holes, the impinging distance and jet reynolds number on heat transfer characteristic at the target wall are summarized under staggered holes arrangement and the same hole diameter. and then, the numerical simulation of inclined multi - hole film cooling has been studied. the influence factors examined in this case include blowing ratio and the distance of adjacent holes
首先通過對射流沖擊冷卻方式的研究，分析了相鄰孔間距、沖擊間距以及射流入口雷諾數對沖擊靶面換熱系數的影響情況，然後對多斜孔冷卻方式進行了數值模擬，重點探討了吹風比和相鄰孔間距對絕熱溫比與壁面換熱系數的影響規律，最後，針對沖擊-發散復合冷卻流場的計算物理模型，研究吹風比、相鄰孔間距的變化對沖擊-發散復合冷卻流動與傳熱特性的影響。 -
When the pulsating jet was introduced in the heat exchanger, pulsating flow leads to the formation of an amount of vortices near the tube wall. the boundary layer was destroyed and the mixing of liquid was improved, so heat transfer enhancement was achieved
將自激振蕩脈沖射流引入換熱器后，流體的脈動導致了壁面處旋渦的大量生成，增加了流體的摻混，實現強化換熱的目的。 -
Effect of wall function in numerical study on turbulent impinging jet
紊流沖擊射流數學研究中的壁面函數法 -
Planar laser induced fluorescence ( plif ) was used to study the spray / wall impinging in constant volume vessel. the experimental result show that when fuel spray impinging on the plane wall, wall jet was formed while fuel impinging on a plane wall with a bump, when the wall jet meet the bump, a secondary jet can be formed. some parameters affecting the secondary spray were studied, including bump height, the secondary impinging distance, impinging distance and injector parameters
對傳統燃燒室和bump燃燒室內燃油空氣混合過程進行了對比研究，發現燃油撞壁以後在傳統燃燒室壁面形成壁面射流，這一層燃油濃度很高，很難與空氣混合，而在bump燃燒室內，壁面射流遇到bump后，會在空間形成二次射流，二次射流進一步能快速與空氣充分混合。 -
The last or main injection pulse is set around tdc. when the diesel spray impinging on the combustion wall, the bump around the combustion chamber wall can strip off the wall jet and form a secondary spray in combustion chamber, so the fuel and air can mix well and homogenous
在主噴射時刻，利用燃燒室壁面的bump迅速剝離壁面射流，在空間形成二次射流，二次射流進入燃燒室空間后，再一次與空氣混合，形成相對均勻的稀混合氣。 -
By the experiment in site and construction of two important water conservancy projects ( longhekou reservoir and hengpaitou diversion project ), we go a step further on the principle of the jet - grouting used on dam diaphragm - wall
本課題是結合龍河口水庫、橫排頭樞紐兩個大型水利工程壩基防滲加固的實際要求，通過現場試驗和工程施工，對形成高噴防滲墻原理和作用機理進行進一步分析。
分享友人