surge flow 中文意思是什麼
surge flow
解釋
時大時小的油流-
Based on the data, infiltration parameters k, ai and bi were obtained according to the flow advance and recession course of the stream in the furrow, on the base of which, the model of surge furrow irrigation was set up
基於田間實測的田間入滲及灌水試驗資料，利用灌水溝水流推進、消退過程，求得波涌灌入滲參數k ， a ， a _ i和b _ i ，並由此得出波涌灌的入滲模型。 -
The impacts of both the velocity head and momentum distribution in the t - junction of a tailrace surge tank on the critical stable sectional area of the tank were analyzed by using gardel ' s empirical equations for t - junction flow. based on thoma ' s theory, a formula of the critical stable sectional area is derived. 5
基於gardel關於三通管水頭損失的經驗公式，研究分析了連接管處的速度水頭以及進出調壓室水體與尾水隧洞水體之間的動量交換，對有連接管的尾水調壓室穩定斷面積的影響，並在托馬（ thoma ）假定基礎上，推導出相應的調壓室穩定斷面的計算公式； 5 -
At present, surge control method for centrifugal compressor being used is commonly by least - flow method. it can ’ t make compressor working within operating condition area, sometimes starts the surge control system earlier, which will waste energy sources and depress economy benefit. even, its control system commonly consists of simulation instrument, can ’ t modify the changing surge curve of compressor in time and can ’ t control nonlinear surge curve preferably
目前，在用的離心壓縮機的防喘振方法一般採用最小流量法，它不能充分使壓縮機工作在其工況區，往往過早起動防喘振系統，浪費了能源，降低了經濟效益。且控制系統一般採用模擬儀表構成，在壓縮機的喘振線發生變化時不能及時修正，對非線性的喘振線不能較好的實施控制。 -
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。 -
Analysis on surge flow ditch irrigation technique in mountain area
丘陵山區波涌溝灌技術要素分析 -
Research on hydraulic and automatic equipment of surge flow irrigation
水力自動波涌灌溉設備的研究 -
Technique of surge flow irrigation and its water power automatic equipment
涌流灌溉技術及水力自動裝置 -
The result of calculation shows that in that flood season of 1999, the flow of baini channel in networks was reciprocating flow for common ; it was in the extreme case of the storm surge, and affected by extreme velocity and topography, the flow in baini channel course and was rocking crookedly, this demonstrating the instability flow phenomena
計算結果顯示，在99年洪季時，河網內白坭水道流動為通常的往復流動；但在風暴潮極值狀態下，由於受極值流速及地形的影響，流動在白坭水道中彎曲扭擺，呈現出流動不穩定現象。 -
This new technology changes from the traditional method by which the induced and compressor wheel separately are designed and produced to a new one by which the one - piece compressor is designed. on the basis of this new technology and the optimum blade profile, the performance of both the compressor and the turbocharger is largely improved. through the heating power calculation of the compressor, the analysis of the surge and the block of the compressor, the test - bed performance test of the turbocharger, the matching test of turbocharger and diesel engine, the propulsion test of the turbocharger on plateau condition, it is proved that the newly - designed compressor not only has high efficiency, but also improves the flow distribution in the high efficiency area so that the propulsion line can run through the high efficiency area
主要內容包括：提出一種全新的壓氣機葉輪技術和概念，這種技術將傳統的導風輪和壓氣機分開設計、單獨加工改為整體設計、整體加工的單體葉輪；從增壓器與柴油機配機計算所得出的基本參數出發，通過對壓氣機進行熱力計算，確定壓氣機的基本結構參數；再對葉型以及葉輪輪廓與葉輪罩殼的配合間隙進行優化，對新設計的壓氣機進行喘振和堵塞分析；通過增壓器平臺性能試驗，驗證了新設計的壓氣機的性能水平得到了較大的提高，達到了提高增壓器的整體性能水平的目的；通過增壓器與柴油機配機試驗、以及增壓器用於高原條件下的牽引試驗，驗證了新設計的壓氣機不但具有高效率，還改善了高效率區的流量分佈，使牽引特性線貫穿高效率區。 -
Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction, the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment. 3. four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank
給出了基於gardel關於三通管水頭損失系數的經驗公式、焊接t形三通管水頭損失系數的實驗資料及截面突變管道的水頭損失資料，計算有連接管的阻抗式調壓室在不同流態下水頭損失系數的計算方法，並將這兩種方法計算得到的調壓室局部水頭損失系數分別與模型試驗成果進行了比較和分析； 3 -
From the experimental, results it is observed that the adjustable inlet equipment can efficiently put off the occurrance of compressor surge and choke, and a wider range of flow in compressor working can be achieved
結果表明，可調導風裝置能夠有效地延緩喘振和推遲阻塞的發生，擴大了壓氣機流量范圍。 -
Abstract : concerning the models for discribing aerodynamic stability of axial flow compressor, the original model is one - dimensional, and it is reasonable for the onset of surge only. for the onset of rotating stall, there are just some two - dimensional models at published literatures. a three - dimensional aerodynamic of compressor has been presented in this paper. an aerodynamic stability model concerning radial disturbance of compressor is presented. the calculated results show that the occurrence of radial disturbance is related to the axial velocity disturbance, which has important effect on aerodynamic stability of compressor. the position of onset of stall, in blade tip or hub, is dependent upon the characteristics of blade element. the comparisons of calculated results predicted by 2d and 3d aerodynamic stability model have also been made in this paper
文摘:軸流壓氣機的氣動穩定性模型，最初為一維模型，僅適用於描述喘振發作.對于旋轉失速發作，在公開文獻中有一些二維模型發表.本文提出了一類考慮壓氣機徑向擾動對失速影響的新的氣動穩定性模型.計算結果表明壓氣機的軸向擾動往往隨著徑向擾動的產生，徑向擾動的強度影響壓氣機的氣動穩定性，在葉尖還是葉根首先產生失速與壓氣機基元葉柵特性密切相關.本文對軸流壓氣機二維和三維氣動穩定性模型的計算結果進行了對比分析 -
Concerning the models for discribing aerodynamic stability of axial flow compressor, the original model is one - dimensional, and it is reasonable for the onset of surge only. for the onset of rotating stall, there are just some two - dimensional models at published literatures. a three - dimensional aerodynamic of compressor has been presented in this paper. an aerodynamic stability model concerning radial disturbance of compressor is presented. the calculated results show that the occurrence of radial disturbance is related to the axial velocity disturbance, which has important effect on aerodynamic stability of compressor. the position of onset of stall, in blade tip or hub, is dependent upon the characteristics of blade element. the comparisons of calculated results predicted by 2d and 3d aerodynamic stability model have also been made in this paper
軸流壓氣機的氣動穩定性模型，最初為一維模型，僅適用於描述喘振發作.對于旋轉失速發作，在公開文獻中有一些二維模型發表.本文提出了一類考慮壓氣機徑向擾動對失速影響的新的氣動穩定性模型.計算結果表明壓氣機的軸向擾動往往隨著徑向擾動的產生，徑向擾動的強度影響壓氣機的氣動穩定性，在葉尖還是葉根首先產生失速與壓氣機基元葉柵特性密切相關.本文對軸流壓氣機二維和三維氣動穩定性模型的計算結果進行了對比分析
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