流速管 的英文怎麼說
中文拼音 [liúsùguǎn]
流速管
英文
pitot tube- 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...
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Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下,不同流速對熱管空氣預熱器壁面溫度的影響;然後對影響整個流場分佈的各種因素:包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬;最後提出在分流煙道轉彎處加裝導流板,並模擬加裝導流板后的流場分佈,得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈,以論證加裝導流板能達到流場均勻化的作用。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。Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. it takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the pga model on optimal design of water supply networks
考慮到峰谷電價、用水量變化曲線及用水可靠性因素的影響,分別建立了以最高時流量設計管網的模型和以期望時流量設計管網的模型,以年費用折算值加上清水池年造價折算值為目標函數,以連續性方程、管中流速和鑄鐵管耐壓值等為約束條件,進行并行遺傳演算法對給水管網優化設計的實現。Results : the sonographic manifestations in the ipsilateral course variation vertebral artery revealed that the diameter and flow velocity were decreased, pi and ri were increased
結果:椎動脈走行變異其變異側椎動脈超聲表現為:管徑較窄, pi和ri較高,流速較低。Radial klystron oscillator driven by intense relativistic electron beam
新型高功率徑向強流速調管振蕩器Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously
實驗結果表明:在湍流區域內流速(量)不變時,改變管件開度,阻力系數變化較顯著;改變流量,管件開度不變時,變化不大。The pressure at every point along the pipeline, the gas - liquid phase flow rate and the law of the liquid holdup in the pipeline chang ing with time in the process of gas storage and supply at the time of peak shaving are simulatively calculated, and based on this, the problem on peak shaving is thoroughly analyzed by combining with the existing pinghu - shanghai gas pipeline in china
模擬計算了調峰過程中管道儲氣和供氣過程沿線各點的壓力、氣液相流速和管內持液率隨時間的變化規律,據此結合我國已建成現有的平湖一上海的天然氣管線,對調峰問題作了深入地分析。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It is suggested that in the regions of aqueous soil with faster seepage velocity, either the tube - wells can be spaced adequately closer or for the same spacing the number of tube - wells and length of tubes can be reduced under the condition of assuring regular heat transfer effect
在滲流速度較大的富水地區,在保證常規換熱效果的情況下,管井間距可適當減小,或在同樣管井間距下,可減少管井數量或減小理管長度。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。The main work is done with the help of model experiment. in the flood - relief experiment, the flood carrying capacity of spillway tunnel is checked. in the hydraulic experiment of the diversion power conduit system, the followings are studied : the flow condition and fluctuation in the surge chamber, the distribution of flow velocity before the rack in the surge shaft, the amplitude of stage in the quick gate bay etc. the test step, content and results of different proposals are introduced in details
本項優化試驗研究的目的主要在於,通過泄洪系統整體水力學試驗,校核泄洪洞的泄流能力;通過發電引水系統整體水力學試驗,研究調壓井內水流流態和水位波動情況、調壓井內攔污柵前流速分佈情況;確定快速閘門井內水位波動幅度;試驗確定壓力管道水擊壓力穿井系數以及泄洪洞弧形門處的水壓力。Closer throttling, creating higher pressure drops may cause cavitation or excessive velocities which could cause high noise levels, vibration and possible damage to the valve or adjacent piping
如果節流較小,將因此產生更高的壓降將可能導致空穴現象或超快流速,從而導致噪音太高,振動劇烈,可能損壞閥門或相鄰的管路。On the basis of published research of experts and scholars, relations among the velocity of water, that of solid particles and that of settling slurry have been established by the analysis of momentum transmission between water and solid particles in the upward inclined pipeline. then the calculation formulae for the upward - inclined - pipe hydraulic gradient are derived
本文在系統總結現有專家學者的研究成果基礎之上,通過分析向上傾斜管道輸送中清水與固體顆粒的動量傳遞過程,從動量守恆的角度建立了清水速度、固體顆粒速度和漿體流速之間的關系,進而推導出了向上傾斜管道輸送的水力坡度計算公式。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。Enterprise resource planning can put the plan, the purchase, the sale and the materials scheduling, the stock management organic all together. it plays role in the reduction of the cost of purchase and sale, the decreasing of the overstock, the acceleration of the cash flow, the controlling of the flow management of the stock materials and the purchase of the materials timely for the successful production
企業資源管理將計劃、采購、銷售以及物資調度、庫存管理有機地結合起來,對于降低采購和銷售成本、減少庫存積壓、加速庫存資金的周轉和控制庫存物資的流程管理,以及及時采購和補充物資以保證生產的順利進行都將起著積極的作用。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In the simulation of close water test, varied profiles of velocity of flow are obtained at different leakage location along the detected pipe, the variety values of the water level in the check well are acquired with time, consequently the location of the leakage can be judged
在閉水試驗時,通過模擬沿管道長度方向上不同滲水點的流速的變化,以及得出窨井出口處的水位隨時間的變化值,來判斷管段中最有可能出現滲漏點的位置。Definition of inlet velocity of tube well for water supply and its calculation
供水管井進水流速的定義及其計算上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。分享友人