jet flow 中文意思是什麼

jet flow 解釋
噴氣流
  • jet : JET ＝Joint European Torus 歐洲聯合核變實驗裝置。n 1 【礦物】煤玉，黑色大理石。2 烏黑發亮的顏色。...
  • 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、...
  1. A comparison of the flows with different gate - opening rates shows the causes that opening the gate at a higher rate is favorable to the reduction of cavitation, gate vibration as well as the gate load fluctuation. in addition, a study has been made to show the influence of the high - speed jet flow coming downward from the narrow gate gap on the flow condition in the tunnel downstream to the gate

    通過分析比較不同閥門開啟速率對流動特性的影響，闡明了快速開啟閥門不僅有利於減少空化空蝕也有利於減小弧門振動和啟門力的脈動，此外，研究了門楣處狹窄縫隙高速射流對門后流態、壓力脈動和弧門受力等方面的影響。
  2. The relations between the parameters of gas charging and exhausting, heat quantity through the shell of tube ( q ), the length of the tube ( l ), the ratio of gas charging time to gas exhausting time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the nature of thermal separator and the unsteady flow in the tube were established

    建立了進、排氣參數、管壁散熱量（ q ） 、管長（ l ） 、充、排氣時間比（ ） 、射流頻率（ f ） 、膨脹比（ ）等參數與熱分離機性能及管內非定常流動的關系，並分析了有關因素對熱分離機性能的影響。
  3. 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。
  4. The simulation results were studied the interaction mechanisms among burning jet flow and upstream flow were demonstrated

    分析和比較了模擬結果，揭示了空氣來流和燃氣射流對彈箭的干擾機理。
  5. The ratio of the length to the depth of scour hole decreases with the increasing scour depth, in spite of the reason is the increase of the air concentration, the decrease of the jet velocity or the decrease of the jet thickness. 5. governing equations of the aerated jet flow are established

    摻氣對沖坑形態並沒有實質性的影響，沖坑的寬深比隨沖坑深度的減小而增大，無論造成沖坑深度減小的原因四） 1大學i學博士學位論文是摻氣、降低流速還是減小入射水舌厚度，其變化規律都可用相同的直線關系表示。
  6. Calculation method and affecting factors of productivity for deep penetrating perforation with hydraulic jet flow

    深穿透水力射流射孔產能的計算及影響因素
  7. The comparison of the calculation formula for unsteady jet flow with that of steady jet flow demonstrates that the pulse frequency is the main factor influencing the velocity coefficients 2 and 5, and the relationship between the velocity coefficients of pulsed jet flow and steady jet flow was revealed

    通過與恆定射流的流速系數計算式對比，闡明了脈沖頻率是影響2和5的主要因素，溝通了脈沖射流與恆定射流流速系數之間的關系。
  8. And then, some improvements have been made on the old single tube pressure wave refrigerator experimental system. the experimental research, such as the ratio of gas charge time to gas exhaust time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the length of the tube ( l ) and the heat transfer condition, has been carried out on the improved experimental system. the results were drawn as the following : the refrigerating efficiency will be heightened by augmenting when is in 0. 0405 to 0. 1842 ; the highest cooling efficiency will be

    實驗考察了有關因素對製冷效率和最佳射流頻率（ fopt ）的影響並進行了理論分析，結果表明，在= 0 . 0405 ~ 0 . 1842范圍內，製冷效率（ ）隨的增大而提高;隨射流頻率（ f ）的變化出現多個峰值，在本文實驗參數范圍內下，第二個峰值點的效率比第一個峰值點高;隨著膨脹比（ ）的增大，和fopt都略有增大，且低下的增幅比高下的大;強化管外換熱，可使fopt降低、明顯提高。
  9. Second, numerical simulation and qualitative analysis has been done for the synthetic jet flow field in different cases ( different phase, amplitude and frequency ), and gained many conclusions which are helpful for designing the synthetic jet actuator

    二、對不同驅動頻率，振動膜速度幅值以及激勵器的結構對合成射流的影響分別進行數值計算和定性分析，得到了大量有助於合成射流激勵器設計的結論。
  10. Saving function low operating cost. fully automatic jet flow is suitable for : micro fiber, high twist, woven fabric, curly edge. ect

    全自動噴射式高壓水流適用於：超細纖維強捻布機織布卷邊布經編布
  11. Sometimes cavitation and self - excited oscillations may exist in the jet flow field. they may performance and lifetime of the servo valve

    射流流場產生的氣穴不僅破壞流體的連續性，而且還引起振動和噪聲，直接影響到閥的性能與壽命。
  12. Making use of the energy dissipation function of the step, the measure which takes step as curve jet flow is proposed

    四川大學碩士學位論文利用階梯的消能作用，提出把階梯作為彎道急流的一種控制措施。
  13. Because of the jet flow field for the prestage of hydraulic servo valve driven by jet flow, it is difficult to build an accurate mathematical model, thereby the analysis of servo pipe and whole servo control system is difficult to be carried out

    由射流前置級驅動的伺服閥，由於射流流場的不確定性及流場分佈的復雜性，因而很難建立精確的數學模型，從而使伺服閥及整個伺服控制系統的分析難以實現。
  14. In this paper, field of servo valve prestage is simulated and tested. the 2 - d geometric model of the jet flow field is established by utilizing the cad software autocad, according to the parameter of practical size. the mesh of the model is generated by gambit which is the preprocessor of the fluent software

    本論文針對伺服閥前置級射流流場的流動情況，按照實際使用中伺服閥前置級的參數，應用cad軟體autocad建立二維幾何模型，運用fluent前處理軟體gambit進行了網格的劃分。
  15. Modeling on isothermal flow field of ans - ob oxygen torch the experimental research of co - axial annular jet flow

    氧槍等溫流場模擬研究同軸環狀伴流流場模型實驗
  16. This system uses a jet - flow unit nozzle to trigger hot water dynamics, converting the heat into pressure differentiation that draws external air into the tower for heat exchange to attain cooling

    （ 2 ）以一噴流單元之噴嘴引發熱水動能、轉換成壓力差，引外氣進入塔內作熱交換，達到冷卻的目的。
  17. The numerical simulation of supersonic flow field with lateral jet flow

    平板超音速側噴流繞流場數值模擬
  18. Numerical study on gas - solid two - phase jet flow and solid particle erosion

    燃氣射流氣固兩相數值模擬與顆粒沖刷分析
  19. Adopts the scheme, the workstation could be in jet flow region and realize " series - wound " ventilation

    採用這種送風方式，工作區處于射流區，不產生死區，可實現主廠房「串聯式」通風。
  20. These measures are as follows : shorten the primary wind intervals to improve thermal load of the burner ; reduce the size of hypothetical circle of contact to prevent the flame from splashing ; use nozzles with larger height / width ratio to increase the effusive rigidity, so as to increase the jet flow depth of secondary wind into the main jet flow ; use a higher primary wind velocity to increase its jet flow rigidity ; use a special flame holder structure of the primary nozzle, so as to improve

    這些技術措施主要有:縮小一次風間距以提高燃燒器區域熱負荷;縮小假想切圓防止火焰刷墻;採用高寬比較大的二次風噴口以增加射流剛性，提高二次風射流進入主射流的深度;採用較高的一次風速來提高一次風射流剛性;一次風噴口採用特殊穩燃結構;提高下二次風的托粉能力。
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