排流流速 的英文怎麼說
中文拼音 [bèiliúliúsù]
排流流速
英文
velocity of retreat-
The amount or rate of emission or ejection
排放量流量、流速，或排出量，排出的速度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。Results show that the influence of mainstream reynolds numbers on heat transfer coefficience is little and the heat transfer coefficience raise with the increase of reynolds numbers. the influence of the position of holes on heat transfer coefficience is complex and correlate with the mainstream speed and the balde surface curvature. and the influence of blowing ratio on heat transfer coefficience is more great ( especially to stator ), and show a complex relation to mainstream reynolds number and the position of holes
實驗結果表明，不同孔位出流的換熱由於孔排下游表面來流速度及葉片表面曲率的不同而有不同的規律，而主流雷諾數對葉片表面特別是壓力面和前緣區域的換熱系數比的影響較小，吹風比對換熱系數影響較大（特別是導葉） ，並且隨氣膜孔位置和來流雷諾數的變化而情況復雜。Numerical investigation of 3 - d turbulet flow fields for supersonic flying base bleed projectile
超聲速飛行底部排氣彈三維湍流流場數值模擬Drawing capstans are arranged in straight - line, the metering capstan is driven by separate dc motor. drawing dies can be quickly changed
鼓輪直線式排列，定速輪單獨直流電機驅動，可實現快速換模功能。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律，並耦合進氣畸變的影響，同時與壓氣機氣動性能和氣動穩定性相關聯，作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機（ lsc ）試驗器，採取在靜子葉片表面埋入動態壓力傳感器的實驗方法，對葉尖、葉中和葉根三個截面的動態壓力進行了測量，獲得了大量的可靠的實驗數據。It will change the hydraulic conditions of the river, such as widening the water surface, decreasing water - flow velocity and purification capacity of water body in reservoir area meanwhile, many problem will be encountered, such as a large quantities of pollution in cities and towns, harmful matters in pesticide and fertilizer in reservoir area, poisonous pollutants in rainfall, accidental discharge of municipal wastewater or industrial sewage, limits of low economic level and urbanization etc.
該水域的水力學條件發生變化，水流速度減緩，岸邊污染帶加寬，水體的環境容量降低；三峽庫區城鎮污水處理廠和廠礦的有害廢水處理設施不可避免地會發生事故排放；成庫期內庫區城鎮污水的治理很難達到水質要求，以及三峽庫區目前較低的經濟和城鎮化水平制約，庫區城鎮供水面臨的水環境問題日漸突出。Secondly, we compared the similarities and differences of two multiple pulse schemes, namely " optimum pulse spacing " and " fixed pulse spacing ". it showed that the arrangement with both the spacing between pulses and the length of the single pulse increasing as the plasma wave becomes more nonlinear will drive wake wave effectively
接著我們比較「優化脈沖間隔」和「固定脈沖間隔」兩種多脈沖尾流加速方案，得到：更合理的脈沖安排應該為：脈沖間隔不斷增大，脈沖長度也不斷增大。The relationship of stable price, sustainable economical increase and sufficient employment, balance of the international income and payment must be intention
再次，在貨幣供給理論中排斥了貨幣流通速度對貨幣供給量的影響。This research is to eject some compressed air into the dredging pipe to get tri - phase flow in the pipeline, and research the change about the pipe resistance, at the same time, obtain the more effect adding gas method and realize reduction friction and prolong the dredging distance
本文研究的目的是在一定的漿體流速和漿體濃度下向輸送管道中加入一定量的氣體，在管道中形成三相流，進而探討加氣后管道流動的變化規律，同時確定出比較有效的加氣方案，從而實現減少阻力延長排距的目的。To ascertain how to produce differential pressure reasonably during the course of high temperature and pressure gas well testing, we must consider synthetically the following situations : both liquid in well bore and solid phase particles of mud in strata can be carried out through airflow ; we must avoid sand production out of borehole walls and make the selected differential pressure meet the demands of the testing instrument capability ; the calculation of differential pressure when no sand comes out of strata covers the calculation of strength of rock of borehole walls and airflow velocity, etc
摘要高溫高壓氣井測試中合理生產壓差的確定需要綜合考慮使氣流能夠在井筒中攜液、返排侵入地層中的泥漿固相顆粒、避免井壁出砂、滿足測試工具性能要求等；地層不出砂壓差計算還涉及到井壁巖石的強度計算、氣流流速計算等。This article introduced the method of geological investigation of nanling tunnel karst disease, elaborated the tunnel engineering geology conditions, especially the karst water, the karst water power channel and the harm of karst water, and analyzed the cause that produced the karst disease
摘要南嶺隧道巖溶地下水活動造成地表坍陷、洞內泥砂淤塞等病害，其原因在於隧道施工遺留的導洞長期疏排巖溶水，採用地質測繪、物探、鉆探、水文地質試驗等綜合勘察方法，查明地下水通道位置、地下水流速、流向，針對病害原因，提出攔截、封團、疏排、填充等綜合整治方案。In the case, the background of tinghsin international group and the operations mode of guangzhou tingyi international food co. ltd. are introduced. the kinds and the production process of the brand " mr. kon " are described referring to the competition in instant noodles market, and the production equipment, labor arrangement, and the production plan in workshops of noodles, seasoning packs, and bowls are emphasized. it reflects that the conflict between the variety of products and the specialty of machines in the old production plan procedure restricts the quick response of manufacturing and consequently the supply of products
案例部分，介紹了頂新國際集團的背景資料；說明了廣州頂益國際食品有限公司的運作模式；結合方便麵市場競爭形勢，詳細描述了「康師傅」方便麵的種類、生產工藝；重點闡述了制面、調理、制碗三車間的生產設備、人員結構、生產安排的特點；真實反映出：在原生產安排流程中，產品的多樣性與設備的專用性的矛盾制約了生產的快速反應，從而影響產品需求的供應。It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion
討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施：降低平均煙氣流速；降低飛灰濃度；使用鰭片管、螺旋翅片管代替光管；選擇合適的結構及排列方式，減少煙氣中so3的含量；提高受熱面壁溫使之大於煙氣的露點溫度；採用抗腐蝕材料作受熱面等防腐蝕的措施。When the punched baffle is proper in length, the small holes are in staggered arrangement and the punched ratio gradually increases from the central axis to the boundary along the baffle length, the performance of flow distribution in the plate - fin heat exchanger is effectively improved by the optimum design of header configuration
從實驗對比分析中得出，當擋板小孔呈錯排分佈、開孔率沿擋板的中軸線向兩側逐漸增加、且總開孔率達到50 %左右的時候，在相同的入口條件下，不均勻系數由原始封頭的1 . 210降至0 . 209 ，最大流速與最小流速之比由23 . 163降至1 . 756 。The management of the assembly line of clothing is the most important link in the production of the clothing, and chooses a good procedure synchronization scheme is a complicated and changeable course in step assembly line among them, and it needs not only the expert ' s abundant knowledge and flexible judgment, but also a large amount of repetitive operation. this paper grades the assembly line of clothing intelligently in principle of the basis expert system, and develops quick and high - efficient arrange system of procedure synchronization, and makes the production management of the clothing reach the request for the quick reaction by using intelligent technology
服裝流水線的管理是服裝生產中最重要的一個環節，其中編排流水線的同步化方案是一項復雜多變的過程，既需要專家的豐富知識和靈活判斷，又牽扯到大量的重復進行的思維過程，本文依據專家系統的原理對服裝流水線進行智能化編排，開發出迅速高效的工序同期化的編排體系，運用智能技術，使服裝生產管理達到快速反應的要求。Dilution and dispersion in constant horizontal flow and bottom multi - port discharging was studied in accordance with the hydraulic model test. the influence of diffusion parameters ( jet angle, jet velocity, number of nozzle, riser space ) and environmental parameters ( water depth, water velocity ) on dilution were analyzed. the experimental results show that environmental parameters have prominent effects on wastewater dilution and dispersion, in addition to that, diffuser design parameters have significant influence on wastewater dilution and dispersion. for bailonggang outfall zone, jet angel is 10 or so, nozzle number is 16 or so
藉助於人工模型試驗，分析了恆定橫流底部多孔排放時擴散器設計參數（射流角度、射流速度、噴口個數） 、上升管間距）及環境參數（環境水深、環境流速）對污水近區稀釋擴散效果的影響，實驗結果表明，除了環境條件對污水稀釋擴散效果影響明顯之外，擴散器設計參數對污水的近區稀釋擴散也有顯著的影響，針對白龍港排放口水域，噴口射流角度宜控制在10左右，噴口個數取16個Temperature process lines with tidal cycles of multi engineering conditions of characteristic sections are obtained, the relationship between temperature distribution and velocity field is established, the inner mechanism change of temperature process lines is investigated, the interrelation between water intake and outlet is analyzed, the relation between the ratio of dimensionless temperature rise span of the plant intake and the ratio of river discharge volume and plant cooling water intake volume is obtained
得到了特徵斷面多種工況隨潮周期變化的溫度過程線，建立了溫度場與流速場的相關關系，研究了溫度過程線的變化機理，分析了取排水口對溫度場的相互影響關系，探討了無量綱溫升時長比與無量綱來取流量比的相關關系。According to bernoulli theorem, kinetic energy and potential energy change due to the thermokinetic differences of steam and conden sation water, and action valve plate starts and stops to choke air and drain water
圓盤式疏水閥是根據伯努力熱動力原理，利用蒸汽和凝結水通過閥孔時流速和何種產生變化的不同熱力學性質，驅動閥片開關閥門，從而達到阻汽排水。分享友人