通風阻力 的英文怎麼說

中文拼音 [tōngfēngzǔlì]
通風阻力 英文
draft-pressure resistance
  • 通 : 通量詞（用於動作）
  • 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 通風 : 1 （使空氣流通） ventilate; air 2 （透氣） be well ventilated 3 （透露消息） divulge information;...
  • 阻力 : 1 （阻礙事物發展的外力） obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法，在不考慮燃燒的冷態情況下，研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上，比較了2種不同設計方案的氣流流動特徵，尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明，阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用，同時也增加了空氣管道的阻力損失，在同樣的工況條件下需要提高管道系統的總壓力
  2. The research on calculating formula of coefficient of frictional resistance of bolting and shotcreting roadways

    錨噴巷道通風阻力系數的計算式研究
  3. Fuzzy evaluation of air resistance in roadway ventilation

    巷道通風阻力的模糊評價
  4. 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。
  5. The secondary air duct of boilers is a group of large diameter short ducts in parallel connection, having inlet air flow condition with inner positioned resistant pieces

    摘要鍋爐二次風道為有內置阻力件的一組並聯大口徑短通道，其阻力系數嚴重偏小而且風門渦流強烈，從而造成二次風強烈脈動。
  6. Countermeasures on reducing ventilation resistance

    降低礦井通風阻力對策
  7. Testing methods and application for mine ventilation friction

    礦井通風阻力測定方法及應用
  8. Testing of filter sands for air - raid shelter ventilation - determination of flow resistance

    防空洞通風用濾砂試驗.氣流阻力測定
  9. Abstract : compared with soil destroyed pattern of vertical force and its controlled factor of bearing capacity, it is concluded that pile capacity and its tip resistence have some difference when soil with the same physical mecanic property is used as natural foundation and pile tip resistent layer. whereas the middle weathering rod stratum hasn ' t this property, that is to say it has the same bearing capacity and pile tip resistence

    文摘:通過豎向荷載下土（巖）體的破壞模式及其承載能力控制因素的比較，論述了物理力學性能相同的土層作為淺基礎的天然地基與樁端持力層時，承載力值與樁端阻力值應存在一定的差異；而中（微）風化程度的同一巖層作為天然地基與樁端持力層時，不具有這方面的差異性，承載力值與樁端阻力值應該相等。
  10. Secondly, the paper simplified the calculating model of fume in the high tunnel. took the fume restriction into account, the paper provided some equations to calculate the longitudinal fire ventilation. finally, the paper calculated three examples : the zhongliangshan tunnel and the left route of the yanmenguan tunnel

    最後，本文將公路隧道火災的通風模型進行簡化，考慮火災煙流阻力（節流阻力，摩擦阻力，火風壓）的影響，提出了縱向式火災通風計算的方程式，並對中梁山隧道的左右線、雁門關隧道的右線進行了實例計算。
  11. Breathing valve shall be set on roof of the fixed - roof tanks ， which can make the tanks safe and reduce the loss of the stored liquids as evaporation

    呼吸閥安裝在固定頂罐的通風裝置，起減少油品蒸發損耗，控制儲罐壓力的作用，它也可與阻火器聯合安裝使用。
  12. Development of filter self - rescuers mt standard testing equipment

    通風網孔阻力增阻測量法
  13. The technical measures of dropping mine ventilation resistance

    降低礦井通風阻力的技術措施
  14. Rule of adjustment of condition equation and adjustment of condition equation of ventilation resistence

    條件平差原理及通風阻力的條件平差
  15. In the light of the fuzzy property of influence factors of air resistance in roadway ventilation, this paper establishes five standard patterns based on analyzing the influence factors, uses fuzzy recognition method to determine the membership function of the influence factors, then rationally evaluates the value of roadway ' s air resistance and whether the roadway ' s ventilation effect is good or not

    摘要針對巷道中通風阻力影響的模糊性，在分析其影響因素的基礎上，建立了5個標準模式，運用模糊識別的方法確定各因素的隸屬函數，從而合理評判巷道中通風阻力大小與巷道通風效果的優劣。
  16. New material for the second edition includes : kinetic energy ; temperature and resistance ; sawtooth waveform ; fundamentals of digital communication and data transmission ; industrial processes ; cells and batteries ; wind and solar power ; cds, dvds, mobile phones ; and the latest led technology

    新材料為第二版，包括：動能;溫度和阻力;鋸齒波形;基本面數字通信和數據傳輸;工業過程;電池;風能和太陽能發電;光碟，光碟，手機;以及最新的技術主導。
  17. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  18. Analysis of resistance reducing and anti - disaster abilities improving in combined ventilation mines with multi - air shafts

    多風井聯合通風礦井降阻及提高抗災能力探析
  19. After putting the 150 mg / m3 electrostatic needle filtration fabric on the home air condition, the air condition ' s purifying efficiency can get to 71. 0 % ~ 73. 6 % and the resistance is 56 ~ 92pa which is a little higher. and the blast air ' s speed becomes lower and the quality of ventilation becomes less which affect the air condition ' s work

    櫃式家用空調器上使用150g m3的針刺荷電纖維后，過濾pm _ （ 10 ）的效果顯著，過濾效率可以達到71 . 0 73 . 6 ；阻力稍微偏高，達到56 92pa ，送風口風速降低30 ，通風量減少，延遲了空調製冷時間，製冷效果沒有原來好，使用時應注意。
  20. Study on the local ventilation resistance of multistage fan station

    多級機站通風局部阻力的研究
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