面流消能 的英文怎麼說
中文拼音 [miànliúxiāonéng]
面流消能
英文
submerged bucket dissipator-
To use the athwart gradient protection which takes the end of dam as the datum mark will reduce the digging depth of the stilling basins is reducing, and increase the energy dissipation rate
採用以壩體末端為基準面的壩體逆坡防護時，消力池挖深減小，消能率提高，壩面平均流速減小，壩區防護難度降低。( 1 ) it was found from the obtained results that increasing of flux will led to decrease in froude no. of the following water at the shrinking section which will reduce rate of disspated energy, this will make the protection of dam surface more difficult
主要結論如下;隨著流量的增加，消力池收縮斷面弗勞德數減小，消力池的消能率減小。壩面平均流速增大，壩面的防護難度增加。What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank
研究結果表明：設置低坎分流墩后，消除了擺動水躍水舌擺動的根源，提高了水躍的消能效果，改善了下游水流流態。下游水體的主流在中部，既有效的降低了坎后水流底流速，減輕水流對河床的沖刷，又避免了主流位於表面導致波浪過大的結果，下游的水面波浪明顯得到削減。依據經驗公式，可根據工程水流條件設計出低坎分流墩的體型參數，進而估算出下游沿程的水面波浪，為下游岸邊的砌護提供依據。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。Taken the bank spillway at yubeishan reservoir as an example, the water loads acted on the spillway, such as static water pressure, dynamic water pressure, shear stress on the surface of the step and so on, are calculated, which can provide evidence to the stability analysis of the dam slope and slope protection
並以萬縣魚背山水庫岸邊溢洪道為例，計算了溢洪道上所受的水流荷載及其分佈，為土石壩坡和護面的穩定分析提供了依據。通過計算證實了既使在較大的單寬流量下，緩坡上的階梯仍有較高的消能率。Municipal slow - flow water bodice are destroyed due to influence from cites development and characteristics of small mobility and week self - purification ability
摘要城市緩流水體因其受城市發展的影響大、自身流動性小和自凈能力弱的特點，正處于被人為破壞而面臨消失之中。The process of effluent flow during loading in self - propelled trailing suction hopper dredgers was simulated by way of physical modeling and was measured and analyzed by using the flow rate and concentration of spoil in the hoppers, particle sizes of sediments at the inlet and outlet of the effluent flow pipe and hopper volume as the major control parameters
摘要通過物理模型試驗模擬自航耙吸挖泥船裝艙溢流施工過程，以艙內流速、艙內濃度、溢流進出口泥沙粒徑、裝艙量幾方面為主要控制因素，進行實測、分析，並比較自航耙4種常用裝艙裝置的消能效果。This thesis presents a new solution called the smart platform, which better tackles the problems by : 1 ) a runtime environment discovery mechanism which allows a new device to automatically find and join the runtime environment ; 2 ) the loose coupled publish - subscribe inter - module coordination model, which caters for the spontaneous interaction between modules ; 3 ) a global - local two - layer runtime environment structure. the transient failure of the wireless network can be recovered at the local environment layer. the asynchronous nature of the interactions in the < wp = 8 > publish - subscribe model also prevents modules from blocking on the transient network failure ; 4 ) distinguishing two classes of communications with different qos requirements, the message - oriented and the stream - oriented
本文提出並實現了smartplatform ，其特點是： 1 ）運行環境發現機制，使外來計算設備可以自動加入軟體平臺的運行環境； 2 ）松耦合的發布/訂閱式模塊間協調機制，模塊間關聯可以自發組織； 3 ）局部全局的兩層運行環境組織策略，無線網頻發的暫時故障可以在計算設備的局部運行環境層次被屏蔽掉；同時發布/訂閱模型的異步性也使得模塊不會因網路故障而阻塞； 4 ）區分智能空間中的兩類不同的通信需求面向消息的和面向流的，並分別為它們提供了優化的通信層支持； 5 ）基於多agent抽象模型，為整合不同應用領域的模塊和遺留代碼提供了有力工具。Based on experimental result of energy dissipation and scour protection for downstream of spillway at yu jian kou power station, this paper discusses the flow characteristics, aerated characteristics of flaring gate pier for low dam pivot, the influence on pressure of dam surface and the result of energy dissipation for flaring gate pier. it is put forward to be an available method to solve the problems of energy dissipation and scour protection for depth of covering strata, poor geologic condition and weakness of resistance to scour capability under reasonable use of flaring gate piers and auxiliary dissipaters. thus, a new method is obtained for release of floodwater and energy dissipation of low dam pivot which are provided with low water head, great unit discharge and low froud coefficient. it may be used for reference for design and test workers
結合魚劍口電站壩下消能防沖試驗研究成果，對低壩樞紐寬尾墩的水流特點、摻氣特性、寬尾墩對大壩泄流能力和壩面壓力的影響以及寬尾墩的消能效果等問題進行了初步探討，提出了合理地使用寬尾墩結合輔助消能設施可有效地解決壩下覆蓋層深，地質條件差，抗沖能力弱的低壩樞紐的消能防沖問題，從而為具有低水頭，大單寬流量，低佛氏數特點的低壩樞紐泄洪消能開辟了一條新途徑，可供有關低壩樞紐設計與試驗工作者借鑒與參考Experimental study on united energy dissipator with grid and stepped spillway
格柵與階梯式溢流面聯合消能工的試驗研究The reason to creates this kind of destruction to be very many, the main of them is that the apron partially has not been able fully to display it to eliminate energy affect so causes the ditch bed to wash out, forms flushes the pit, leading to the apron, to guard against flushes the trough and both banks slope protection destruction, for a long time, disappear power design of plunge basin and layout have been focused on disappear power. but not to give the enough value on uses the sea to inundate the section to disappear power and adjust speed to reduced downriver washes out
水閘閘下沖刷破壞的部位絕大多數發生在消力池下的海漫和防沖槽處，造成這種破壞的原因很多，其中很大一部分是由於海漫部分未能充分發揮其消能作用而引起渠床沖刷，形成沖坑，導致海漫、防沖槽及兩岸護坡的破壞。一直以來，人們把消能的研究重點放在消力池的消能設計及平面布置上，而對海漫段消能及調整流速功能研究甚少，至於對海漫加糙水流運動建立數學模型，在國內外還很少見相關的論文資料。The numerical simulation was made on this kind of energy dissipator by using the k - s turbulence model, the full - field distribution of the time - averaged parameter and the turbulence parameter are described in detail, the calculated time - averaged pressure has good agreement with the experimental results, some advice can be provided for the further study and application in this thesis, especially the calculated results can be used to check the lowest time - averaged pressure
本文對洞塞式消能工採用軸對稱的k -模型進行了數值模擬，數值模擬結果詳細地描述了時均流參數和紊動參數的全場分佈，計算所得的壁面時均壓力結果與實驗結果相吻合，獲得了實體試驗難以獲得的流動特徵。可供這種消能工的進一步研究和應用提供參考，特別是可用於檢驗壓力最低點的大小。In order to increase the energy dissipation of stepped spillway at iarge unit discharge, the integhty dissipater of aerated splitter pier and steppe characteristics is studied. because of verticaj diffhaion now by aerated splitter and impachng steppe 3 by drop flow, the air concentration and the energy dissipation efficiency are greatly increased ; the potentiality of cavitations is decrease. in special at large unit discharge, this effect is more obvious
摻氣分流墩的增加，明顯地改善了階梯面上的壓強分佈，消除或減小了階梯凹角內和立面上部的負壓；由於摻氣分流墩使水流縱向擴散以及挑流落下后在階梯上的撞擊，使水流的摻氣濃度和消能率都得到較大的提高，降低了階梯面空蝕的可能性，特別是在大單寬流量時，這種效果更為明顯。With import and export rights, the international exhibition, investment and financing, and other qualifications, mainly in the following areas : petroleum, chemical engineering ; paints, rubber and plastics. surface treatment ; energy, metallurgy, iron and steel ; wood ; medical, maintenance, pharmaceutical, medical ; textile and leather ; electronic components instrumentation ; communications, radio and television equipment, media programs ; hvac refrigeration, building materials, engineering and construction ; security, protection, fire ; hardware, tools ; iec electrical, lighting ; lamps and accessories, supplies and maintenance ; environmental protection, water treatment ; machinery and equipment industry ; paper, printing and packaging ; logistics ; secondary transfers ; gifts, toys, jewelry ; food, beverage, forestry, animal husbandry and fisheries ; household goods, hotels, beauty care ; it equipment, digital products, software ; office of books, educational equipment ; sports, leisure, sports goods ; wearing apparel, shoes, and hats, bags ; household appliances, audio - visual equipment, professional lighting ; international exhibitions ; transnational agent ; business services, advertising and other areas of international trade, international investment and financing
具有進出口權、國際會展權、投融資等資質，目前主要從事的領域有：石油、化工；塗料、橡塑、表面處理；能源、冶金、鋼鐵；木材；醫藥、保養、制藥、醫療；紡織、皮革；電子元器件儀器儀表；通信、廣電設備、傳媒節目；暖通製冷、建材、工程建築；安防、防護、消防；五金、工具；電工電氣、照明；汽摩及配件、用品、維修；環保、水處理；機械及行業設備；紙業、印刷、包裝；物流；二手轉讓；禮品、玩具、珠寶首飾；食品、飲料、農林牧副漁；家居用品、酒店、美容護理； it設備、數碼產品、軟體；辦公圖書、教育裝備；運動、休閑、體育用品；服裝服飾、鞋帽箱包；家電、影音設備、專業燈光；國際性展覽會；跨國代理；商務服務、廣告等領域的國際貿易、國際投融資。Experiment data is analyzed with method of projection pursuit for more reliability and utility value. this paper first systematically studied energy dissipater of suspension girder in steep gradient with supercritical flow according to used in actual engineering and received perfect effect. experimental studies about the distribution velocity, the variation of water surface and pressure are undertaken
然而，文章主要針對已獲國家自然科學基金資助，且已在實際工程實踐中產生了良好消能效果的陡坡急流懸柵消能工的部分試驗成果，進行了較全面深入地討論，即具體根據試驗資料系統分析了懸柵陡槽內泄水時的流速分佈、底板壓力分佈及水面線變化情況。The results show that an eddy surrounding the main stream of the multiple jets exists and forms several strong shear flows and enhances the effect of energy dissipation
研究結果表明：多股多層淹沒射流利用在射流軸線周圍所形成的強剪切、三維立體漩滾的劇烈混摻來實現消能，消能率較高，且在平面上沒有形成明顯的、貫穿的立軸漩渦。By the hydraulic model test the application feasibility of the roller bucket with low - ridge was demonstrated. comparing the hydraulic calculation data and operation rusultes, the article made some summarise. the principle of mixed flow for energy dissipation design has been well vertified through the study results
本文主要通過對某電站水利樞紐下游消能防沖的水力計算和整體模型、斷面模型的試驗分析，驗證了低鼻坎戽流消能在此類工程中應用的可行性。Abstract : this paper summarizes a series of tests and inve stigations on general layout, const ruction diversion, flood disposal, navigation, river closure, form of gate opening s ection, pattern of energy dissipation and scouring under sluice carried out for f eilaixia proj ect by the scientific research institute of prwrc during the period from 1983 to 1998 and presents their major results
文摘:綜合闡述了珠江水利委員會科學研究所從1983 ? 1998年間對飛來峽水利樞紐的整體布置、施工導流、泄洪、通航、截流、閘孔斷面形式、閘下消能形式、閘下沖刷等所進行的一系列試驗和研究工作，並介紹主要試驗研究成果。About energy economization, mainly introduced how new technologies and methods are used in utilizing of hydraulic head, decreasing pressure and quantity, setting of fire - fighting system, water pump, supplying of hot water etc
關于節能，主要介紹了在給水管網水頭的利用方面，減壓節流問題方面，生活與消防系統設置方面，水泵方面，開水供應方面的節能新方法、新技術。For the larger area contraction ratio, the flow condition becomes more complicated, the discharge of the tunnel and the change of the negative pressure in the cavity pocket will be reduced, but the cavity diameter of the level rotary cavity flow and the dissipation ratio of the system will be increased
面積收縮率較大時，流態變化復雜，泄流量和環流空腔內的負壓的變化減小，但空腔環流的空腔直徑和泄洪洞的消能率增大。分享友人