測流速管 的英文怎麼說
中文拼音 [cèliúsùguǎn]
測流速管
英文
gauge tube- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 管 : Ⅰ名詞1 (管子) pipe; tube 2 (吹奏的樂器) wind musical instrument 3 (形狀似管的電器件) valve;...
- 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
-
At first, in the process of experiments, it were measured that dry plate pressures drop and point pressures in the flow fields around the single fixed - valve and double fixed - valves under different velocities by using of pitot tube. after that point pressure was transformed to point velocity, two dimensions flow plane of flow fields around fixed - valve were plotted to observe the difference between of the fixed - valve tray with fold edges and the common rectangular fixed - valve tray on the distributions of flow fields and pressures, to provide comparisons and refer - rence for cfd simulation
在實驗中,利用測速管等儀器對在不同速度下的單閥和雙閥固定閥周圍的流場進行了點壓力測量,然後把點壓力轉化為點速度后繪出固定閥周圍流場的二維流線圖,同時測定了塔板的干板壓降,來考察新型固定閥帶折邊后對流場分佈和壓降的影響,為隨后的數值模擬提供對比和依據。Measurement of fluid flow in closed conduits. velocity - area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current - meters or pitot static tubes
密封管中流體流量的測定.用電流表或靜壓皮託管測量圓管道內迴旋流或不對稱流動流量的速度-面積法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。Plastics piping systems - fittings, valves and ancillaries - determination of gaseous flow rate pressure drop relationships
塑料管道系統.管件閥門和附件.氣體流速與壓降之間關系的測定The flume experiment with single spur dike is carried out. water surface profile and velocity field of flow in flume are measured by manometer tube and propeller current meter respectively
首先進行了單丁壩水槽實驗,採用測壓管和旋漿流速儀對實驗水槽中水流的水位以及流速場進行了詳細的測量。Also, it takes a rather long time in measuring the flux in the conventional way, which interferes the gate driver to control the sluice gate in time
另外,傳統測流所用的流速儀法需較長時間,不利於下游涵閘管理部門根據調度快速調控。Measurement of water flow rate in closed conduits. tracer methods. part iii : constant rate injection method using radioactive tracers
密封管道中水流速的測定.示蹤法.第3部分:放射性示蹤器恆流速噴射法To prevent clogging of the pressure tap by fine solids gas is bled into the bed at low velocity at the taps.
為了防止測壓管嘴被微細顆粒堵塞,在管嘴處以低流速向床內注入氣體。In the measurement, the sample flows slowly in the pipeline, and the pressure in the pipeline will change with the time, the sample ’ s apparent viscosities with different shear rates can be acquired
使血樣在密閉管道中緩慢流動,通過對管道中壓力(即流速)隨時間變化的測量以求得不同切變率下血樣的表觀粘度。A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions. the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras. in this paper, the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out, which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve
在對射流前置級驅動的伺服閥射流流場數值模擬的基礎上,用有機玻璃在偏導射流板原始尺寸的基礎上進行了擴大,製作了透明的偏導射流板,運用高速攝像機、液壓泵站等組成了可視化實驗系統,對射流流場的流速方向、渦流、氣穴等現象進行了多方位的觀測,並通過對接收管接收壓力的測試,對流場分析結果進行了驗證。According to the high dispersedness and low precision of measurements when using the traditional time difference method in small diameter and low flow rates conditon, this paper brings forward a new method based on high - speed data acquisition technique. the time difference comes out accurately with high resolving ability of time by using the method and the signal processing algorithms. the developed ultrasonic detection system is composed of two ultrasonic detectors, a transmitting and receiving ultrasonic unit, a high - speed data acquisition unit and a computer
本文針對傳統的時差法在小管徑、低流速測量時,具有測時結果分散性大、測量精度受計數頻率的影響大等不足,創造性地把高速數據採集技術應用在超聲波流量、壓力測量上,用信號處理演算法求時差,使時差成為一個統計量,有效地克服了超聲波傳統時差法測量精度差、不能測量小管徑、低流速流體流量的缺點,提高了時差測量的解析度和精度。Research on water hammer with gas in pressure conduit system through physical experiments, researches on pressure conduit system with gas releasing and liquid column separating, which consist of observing flow patterns, testing the conditions under which liquid column separation brings into existence and the water hammer in water interception collision, and studying effects resulting from gas content and different water velocities in pipeline, was done
3 、輸水管道系統中含氣水錘研究通過物理試驗,對有壓輸水管道系統中的氣體釋放與液柱分離進行了研究,觀察其流態、測試液柱分離發生的條件及斷流彌合水錘壓力,研究了含氣量、流速等參數對液柱分離的影響。Abstract : a tube reactor mixed by an axial continuous flow and four side jets as the dispersed flow is studied. the concentration distribution of the dispers ed flow was measured by means of the laser light scattering. the different flow patterns revealed the special construction of concentration distributions in relation with the velocity ratio of side flow and axial flow
文摘:研究了圓管反應器中四束側向對撞射流與軸向流形成的混合流動.應用激光粒子散射成像測量了側向分散相在混合流中的濃度場分佈,得到了不同的濃度分布圖形隨側向流與軸向流速比關系,揭示了內在有規律的獨特的濃度分佈結構The paper introduces acquired air rate of flow in admission pipes and fluidity in cylinder on single cylinder or multi cylinder engines with hot - wire anemometer, and demarcation and adjustment method of measure values are provided
摘要本文介紹了利用熱線風速儀測量單缸與多缸內燃機進氣管內流速、氣缸內氣體流動以及標定與修正的方法。Now we use common fluorescent microscope to do it
本文介紹在普通的熒光顯微鏡中,實現對微血管血流速度的測定。An experimental apparatus has been set up start from scratch and some experiments have been done to study the heat transfer characteristics of the ice - on - coil tank. the comparison of the theoretical predictions and the experimental data has been made and the disagreements between them are also analyzed
建立了導熱塑料蓄冰盤管傳熱性能測試裝置,測試了結冰和融冰過程中載冷劑的進出口溫度、流速和結冰或融冰時間的關系,通過實驗結果與理論計算的比較和誤差分析,驗證了建立的數學模型的合理性。Allowed working pressure not only relate to material diameter thickness of protective tube it is also relative with its structure form setting measure inserting depth velocity of flow and sorts about measured medium, etc
允許工作壓力不僅與保護管材料直徑壁厚有關還與其結構形式安裝方法插入深度以及被測介質的流速和種類有關。Experimental studies on measurement of flow - rate based on maximum velocity on circular cross - section
用圓管中最大流速測量流量的實驗研究Validation of the observing velocity data in different channels indicates that the velocity distribution law given by authors is in accordance with the real velocity - distribution perfectly in open channel ; and the relative error between observing value and calculating value of point velocity is small, which can satisfy the precision requirement in the calculation of velocity distribution and discharge in open channel
採用不同管道流速資料進行驗證,表明所提出的明渠流速分佈律與實際分佈一致,對應測點流速相對誤差較小,可以滿足明渠流速分佈及流量計算精度要求。At the same time width and blood flow velocity of liver artery in port of liver, width and blood flow velocity of portae vein, the number of blood cells in circulation had been measured. results after liver transplant, the volume of spleen decreased, the mean blood flow velocity of spleen vein and the number of blood cells in circulation increased
方法應用彩色多普勒超聲測量術前及術后第1 、 2及4周35例肝硬化合併脾亢病人脾臟的長徑、厚徑及脾門靜脈管徑、平均血流速度及峰值血流速度等並進行比較。分享友人