experimental tunnel 中文意思是什麼

experimental tunnel 解釋
試驗平硐
  • experimental : adj 實驗（上）的；試驗性的；經驗上的。 experimental parthenogenesis 人工單性生殖，人工孤雌生殖。 ...
  • tunnel : n 隧道；地道；坑道；管道，煙道，風洞；【礦物】石巷，平峒。 tunnel warfare 地道戰。vt （〈英國〉 l...
  1. Using the system designed in this thesis work, flow field calibration of the wind tunnel is accomplished, which covers dynamic pressure drop coefficient, dynamic pressure time stability, axial static pressure gradient, boundary layer, and degree of turbulence, etc. boundary layer measuring principle and method are especially described in detail, the relationship between boundary layer thickness, wind speed setting, and the depth of the experimental section is summarized, and finally the calibration data for th e model center zone under specific wind speed are given

    然後利用本文設計的系統完成了落差系數、動壓時間穩定姓、軸向靜壓梯度、邊界層及湍流度等內容的流場校測。特別對邊界層測量的原理及方法做了較詳盡的敘述，總結出邊界層厚度與設定風速、實驗段深度的關系，然後給出模型中心區一定風速下校正數值。
  2. Experimental research on the hydraulic model of tangjiawan reservoir ' s flood - discharge tunnel

    唐家灣水庫泄洪洞水工模型試驗研究
  3. Computational fluid dynamics ( cfd ) techniques are used to study and understand fluid behavior in tunnels. by simulating complex specific operational cases, we can educe velocity or flux distribution in tunnel under different ventilation and resistance situation and determine the favorable operational procedures of the erlang mountain tunnel ventilation in a fire case. comparison has been made between a simulation and experiment for some cases in order to prove the cfd model is powerful, so that enables the study of cases for which experimental data is not available

    採用本文將隧道內的氣流看成是理想流體的一維恆定流動，通過對二郎山特長公路隧道半橫向通風系統建立隧道內的空氣動力學模型，利用計算機進行數值分析與計算，得出發生火災時，不同通風阻力條件下隧道中的風速分佈及流量分佈，並通過實驗室隧道模型實驗進行驗證與修正，依據研究結果給出了二郎山半橫向通風隧道的火災控制方案，從而解決了二郎山公路隧道通風對火災的控制問題，同時為半橫向通風公路隧道的火災通風提供科學的方法。
  4. An experimental unit for measuring the instantaneous speed of a high - speed train passing through tunnel

    高速列車進出隧道瞬時速度測量實驗裝置
  5. The aerated behaviours in cavitation region of high velocity flow through the non - circulating water tunnel are investigated by using the advanced experimental facilities in the hydraulics laboratory at zhejiang university of technology

    摘要本文用先進的量測儀器在浙江工業大學水力學實驗室直流式水洞中分別對高速水流空化區、空蝕區的摻氣特性進行了較為系統的試驗研究。
  6. The two experiments on the shp calibration and the flow field measure of parachute are be finished with the use of the two kinds of shp measure system separately in wind tunnel. the analysis of the experimental process and data help a lot to both of the improvement of shp measure system and the shp experimental techniques

    七孔探針校準實驗和降落傘流場測量實驗分別使用了上述兩套測試系統，通過對實驗結果進行分析，本文提出了在七孔探針校準和七孔探針測量時需要注意的若干問題，對這些問題的深入分析有利於七孔探針測試系統和七孔探針實驗技術的完善。
  7. The monitoring and measurement of wet shotcreting polypropylene fiber net lining in the experimental part of dongjusigou tunnel

    東巨寺溝隧道纖維噴混凝土襯砌效果監測
  8. Using a special experimental wind tunnel, large number of experiments were carried out to study the resistance and efficiency performance of the inertial stages, he multilayer gauze stages, the two stages and three stages monisture separator. the numerical simulation results were verified

    利用專門的實驗風洞進行慣性級、網墊級、復合兩級以及復合三級濾清器的阻力特性和效率特性的實驗研究，並對數值模擬結果加以驗證。
  9. Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume

    運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區
  10. Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume

    文摘:運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區
  11. In optical fiber aspect, the incident beam can be collimated, converted and focused by some kinds of lenses, making the mode of incident beam matched with or near the optical fiber ’ s modes. in this thesis, thorough theoretical analyses and experimental investigations were made for the external optical properties of a 980nm high - power tunnel junction regenerated multi - active - region quantum well stripe - geometry algaas / gaas / ingaas ld and three different stripe - width 980nm high - power

    本論文圍繞本實驗室研發的新型隧道再生多有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器和多種條寬的單有源區980nmalgaas / gaas / ingaas量子阱大功率半導體激光器的光場外特性、單模階躍折射率光纖和多模漸變折射率光纖的模場特性進行了深入的理論分析和實驗研究。
  12. With the development of global economy and intensifying competition in aviation industry, which have caused transform in wind tunnel experiment field. new tide of wind tunnel experiment comes out. to be on top in this area, the occident has invested a mint of capital to update and rebuild their facility of wind tunnel, to adjust working pattern, to improve efficiency and to develop new experimental technology

    隨著經濟全球化的發展，世界航空工業的競爭加劇，導致了風洞試驗領域的變革，風洞試驗業也呈現出新的發展趨勢，為了贏得在新世紀航空領域的領先地位，歐、美都投入巨資對風洞設備更新改造，調整運行模式，提高效率，發展新的試驗技術。
  13. Experimental evaluation of an active vibration control system for wind tunnel aerodynamic models

    跨聲速風洞測力模型主動減振系統的試驗研究
  14. The demonstration of heat - transfer measuring techniques and prospect of infrared thermal mapping techniques, main parts and performance indexes of a infrared camera, functional blocks and implementation of infrared processing software, experimental facility and measuring system of the wind tunnel has been made. the model emittance was experimentally determined and the three methods correcting directional emittance were compared. those problems of the infinite - slab model thickness and constant wall heat rates hypothesis, the determination of adiabatic wall temperature were discussed in a 1 - d heat conduction analysis

    本文對紅外熱圖測熱技術與應用前景、紅外熱像儀主要部件與性能指標、紅外測熱數據處理軟體功能模塊與實現、風洞試驗設備與測量系統等進行了論述，測量了模型表面發射率並對發射率隨極角變化的三種修正方法進行了對比，對一維熱傳導分析中模型壁厚半無限假設、壁面熱流定常假設、絕熱壁溫選取等進行了探討。
  15. As to the basalt rock tunnel excavation, the gronlund shape is alright, the second shape is wedge - pentagon shape and the diamond shape is unsuited for basalt rock. through the analysis of experimental data and the results of explosion, the explosion rate is up to 85 %

    對于玄武巖通過實驗結果和數據統計分析，得到gronlund （即變五星）掏槽比較適合於玄武巖巖石巷道掘進，其次是楔形+五星掏槽，而菱形掏槽在玄武巖中不適宜， gronlund （即變五星）掏槽形式其爆破效率達到85 %以上。
  16. There are series of excavation shapes experiment and full - field explosion experiment based on the excavation shapes experiment. the pentagon excavation, diamond excavation and spiral excavation are applied in the sandrock tunnel excavation. the analysis of experimental data and the results of experiment proved that the three excavation are apt to use in sandrock tunnel excavation, and the result of explosion is very well and the explosion rate is up to 90 %

    對于砂巖巷道進行了五星掏槽、菱形掏槽、螺旋掏槽，通過爆破實驗數據和爆破結果分析，得到了在砂巖中採用上述三種掏槽形式爆破效果良好，爆破率相對較高；同時，上述三種掏槽方式及其它技術經濟指標，如爆出實體巖石體積等也較好，爆破效率達到90 %以上。
  17. Quality of wind tunnel relates not only to airflow shape and outside frame but also subjected to the control system of electromotor. the rotate speed of fans and the speed press of flow field at experimental segment are the primary parameters for control

    風洞流場的品質除與風洞氣動外形及內部構造有關外，關鍵取決于風洞風扇電機控制系統，其調節的主要參數是風扇電機的轉速和試驗段流場的速壓。
  18. An experimental investigation on the transition in the boundary layer of horizontal plane with and without single two - dimensional roughness elements has been carried out in the wind tunnel. the distribution in normal and stream - wise directions of intensity of t - s wave excited by vibrating beam was measured in every condition. neutral curves were obtained by measuring the growth of the t - s wave at the normal critical location along the stream - wise direction

    在風洞中對水平光滑平板以及加有粗糙元平板的邊界層轉捩進行了測量與研究，比較了不同情況下平板邊界層內由振動梁激勵生成的t - s波沿流向和法向強度的分佈規律，得到了相應的振型增長曲線以及中性曲線。
  19. Experimental study on phenomenon of high - speed railway train passing through tunnel with trumpet - shaped entrance

    高速列車通過喇叭形入口隧道的試驗研究
  20. The wind tunnel data acquisition and processing system designed by this thesis work has passed the shakedown test, and utilizing this system several wind tunnel experiments have been conducted successfully, including an unmanned airplane model and a glider model. accurate experimental data and valuable experimental conclusions are obtained

    本文設計的風洞數據採集與處理系統已經通過調試，並很好地完成了無人機實驗、滑翔機實驗等多項實驗任務；得到了較高精度的實驗數據和有價值的實驗結論。
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