calculated flow rate 中文意思是什麼

calculated flow rate 解釋
計算流量
  • calculated : adj. 1. 有計劃的,有意的,故意的。2. (預備)供…之用的,合於…之用的。3. 算清了的;被預測出的。
  • flow : vi 1 流,流動。2 (血液等)流通,循環。3 流過;川流不息;(時間)飛逝;(言語等)流暢。4 (衣服、...
  • rate : n 1 比率,率;速度,進度;程度;(鐘的快慢)差率。2 價格;行市,行情;估價,評價;費,費用,運費...
  1. 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。
  2. As to the simulation, three - dimensional n - s equations and two - phase flow model, in which the liquid toluene spray as discrete particles was considered, were employed to describe the turbulent combustion processes in the combustion chamber. the mass and energy transfer between the two phases were calculated by the droplet evaporation model, and the arrehnius model was used to obtain the gas chemical reaction rate. the details of 3d flow field, the distributions of temperature and compounds were obtained by solving the equations

    數值模擬方面,應用三維湍流n - s方程以及顆粒軌道模型描述了激光器燃燒室內部的噴霧兩相燃燒流動過程,兩相之間的質量、能量交換由液滴蒸發模型計算,氣相化學反應速率由arrhnius公式計算,通過耦合求解氣液兩相模型方程,模擬了燃燒室三維流場,得到了燃燒室內的溫度和組分濃度分佈。
  3. Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads

    第四章介紹了多執行器復合控制實驗系統和實驗方法;介紹了實驗採用的流量控制的pid演算法;並測定了執行器控制閥和閥芯位移相關的系數;做了單個執行器計算流量反饋流量控制、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控制實驗;通過實驗說明了論文提出的分流控制方法能實現大小慣性負載復合操作時的合理分流。
  4. 3. based on the interrelations of flow stress, strain rate and deformation temperature, the four constants of 7055 aluminum alloy can be calculated during the deformation process. 4

    )和變形溫度t之間的相關性,求出了7055鋁合金高溫塑性變形的四個材料常數:結構因子a ,應力水平參數,應力指數n和變形激活能q值。
  5. When nals was used as the collector in the process, the optimal conditions were the ph of feed solution 5. 0 - 6. 0, air flow rate 100ml / min, the liquid column depths 20cm, the surfactant concentration determined by its cmc and feed concentration. under this condition, the 3 can be above 20. also, the optimal ph ( 5. 0 ) was calculated theoretically for the recovery of the cu ( ii )

    對以十二烷基硫酸鈉為捕集劑的泡沫吸附分離過程的工藝參數進行了研究,並得出本分離系統所確定的最佳工藝參數為: ph5 . 0 6 . 0 ,氣體流量100ml min ,液位高度20cm ,最佳表面活性劑濃度由其臨界膠束濃度和原料液濃度確定,此時(濃縮比)可達20以上;同時還從理論上推算出泡沫吸附分離銅的最佳ph值范圍為5 . 0左右。
  6. The original flow rate formula of parobolic throat flume used for u - shaped channel is implicit function and is not convenient for calculation in irrigation districts. an simplified formula is developed in this paper, with a di fference between results calculated with the original formula and the new formul a being less than 0. 5 %

    用於u形渠道量水的拋物線形喉口式量水槽原流量公式為隱函數形式,針對其使用不便的現狀,通過理論分析推導出了顯函數形式的量水槽流量公式,計算結果與原流量公式比較相對誤差值0 . 5 % 。
  7. The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles

    一、在常溫和常壓下進行滴流床反應器流率分佈的研究,以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈,建立了滴流床在滴流區流率分佈的隨機模型,根據此模型可以: 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈; 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統計特性確定,以參數s修正。
  8. Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated

    以氬氣作為推進劑,在不同工況下進行點火實驗,測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數,得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數,分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響,為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。
  9. With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples, the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0. 5 % and 1 %, then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers

    摘要以內鑲式滴灌帶和薄壁滴灌帶為研究對象,測定了平坡、 0 . 5 %坡度和1 %坡度時,不同入口壓力下滴頭沿毛管的流量分佈和水力損失,並結合滴頭的製造偏差,計算得出不同坡度和壓力條件下滴灌毛管的均勻度。
  10. A straight inlet baghouse which can effectively reduce energy consumption of equipment in operation and lengthen the service life of fabric bags, as well as gas flow structure in the tank body have been presented, and numerically simulating the gas flow distribution in the tank body being carried out by using calculated flow dynamics ( cfd ) method, providing a method and parameters for adjusting the gas distributing plates structure to realize reasonable flow rate distribution in the tank body

    摘要介紹了能有效降低設備運行能耗、提高濾袋壽命的直通式袋式除塵器及其箱體氣體流通結構,並利用cfd方法對箱體流量分配和氣流分佈進行數值模擬,給出了實現箱體流量合理分配的氣流分佈板結構調整方法和參數。
  11. The calculated results are in agreement with the measured ones, indicating that according to the flow rate and composition of the exhaust gas and the mass and the carbon content of the liquid iron, the carbon content of steel bath can be dynamically determined ; with the aid of thermodynamic equilibrium analysis, the dynamic variation of temperature of the steel bath can be forecasted from the dynamic carbon content and the data from the exhaust gas analysis system

    該模型計算結果與檢測結果吻合較好,這表明:通過煙氣流量、成分及鐵水質量和初始碳含量可動態地確定熔池中的碳含量;以動態確定的碳含量為基礎,結合爐氣分析數據,再經熱力學平衡分析,可預測熔池溫度的動態變化。
  12. The result shows that the heat transfer coefficient within the hollow fiber module with laminar flow can be calculated based on the correlation. by analyzing the equation, it was founded that the heat transfer coefficient under laminar flow is almost independent of the feed flow rate. numerical simulation of temperature distribution in hollow fiber membrane module with laminar flow was carried out

    首先採用純水為研究體系,研究分析了中空纖維管內的傳熱系數,研究表明,纖維管內的流動屬于層流狀態,其邊界層傳熱系數可用關聯式來計算,由此式看出,層流狀態下,流速對傳熱系數的影響很小。
  13. The calculated value of shear force model fit well with the experimental results. it means that compare to the tensile stress during squeeze flow the shear stress can be omitted especially when the molding rat e is low and distortion rate is low

    拉伸粘度模型的計算結果與實驗結果吻合得相當好表明:在合模速率不大或變形率不是很大的情形下,擠壓流動過程中剪切力相對于拉伸應力可以忽略。
  14. As an example of 3d program with high quality mesh, proper boundary & initial conditions and ingenious simulation strategy, numerical analysis of flow - fields in hylte nozzle and cavity of dfcl running on fuel system of ( nf3 + h2 + he ) / d2 and experimental stagnation parameters, has been performed using vibration - state - unbalance & rotation - state - balance model, and a detailed kinetic model including 111 one - way primary reactions expressing by finite rate equations between thirteen species. the coefficients of transportation used in the analysis are calculated by employing the formulas of molecular kinetics

    新建立的三維程序在高質量網格、合理的初邊值以及模擬方案基礎上,採用振動非平衡?轉動平衡模型和有限速率方程表達的111個單向基元反應的化學動力學模型,利用分子運動理論計算的輸運系數和工程實驗採用的滯止參數,對運轉( nf _ 3 + h _ 2 + he ) d _ 2燃料體系的df激光器的hylte噴管和光腔進行了數值模擬分析。
  15. The differential pressure across the pressure test points is measured and the flow rate calculated using the calibrated chart or flow coefficient table

    測量經過壓力測試點的壓差,並利用標準化圖表或流量系數表計算流動速率。
  16. Effective forms of multi - layer insulation ca n ' t be gotten unless the temperature and the rate of heat flow in insulation layers, especially in the boundary of insulation layers can be calculated

    設計科學合理的復合保溫結構,必須解決保溫結構中,尤其是各層界面的溫度、熱流率的計算。
  17. In this method, a new perturbation technique called linearization - correction method was used to linearize the nonlinear equations in the model, and then the wavelet precise integration method was used to calculate the sensitivity of the response. at last the stochastic perturbation method is used to analyse the variance and expectation of sediment concentration, rate and depth of flow. the calculated result was high agreement with that result of monte carlo method

    在該方法中,採用了一種擬攝動法對模型中的非線性方程進行線性化,然後採用小波配置法對模型方程進行空間離散,最後用隨機有限元方法求得模型中水流速度,水深和泥沙濃度的統計特性,計算結果和montecarlo法模擬結果吻合得很好。
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