換氣分佈 的英文怎麼說

中文拼音 [huànqìfēnbù]
換氣分佈 英文
distribution of ventilation
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 換氣 : 1 （屏氣后再次呼吸） take a breath （in swimming）; aeration2 （通風） change of air換氣風扇 scav...
  1. 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。
  2. Pmv and the indoor temperature field can be used to evaluate the effect of heating in a large amount air current condition. the result of analysis indicate that the radiation heating and radiator heating have some advantages in such rooms, and hot - air heating is an unsuitable way for room heating

    分析結果后認為， pmv和室內溫度分佈是評價大換氣量房間不同供暖方式室內熱環境的重要參數，在這類房間中，輻射供暖和散熱器供暖將各有優點，而熱風供暖則是一種不宜採用的供暖方式。
  3. To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds

    利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。
  4. Compared with the common situation, the result of numerical simulation shows that the cold air will result in an uncomfortable area indoors by using either of the method mentioned above

    對三種供暖方式在不同換氣次數條件下的溫度場和pmv分佈模擬結果顯示，大換氣量將造成室內一部分區域的不舒適性。
  5. Based on the conventional statistic methods and mexican hat wavelet, the geographical distribution of sunshine duration and wind velocity and their annually, and inter - decadal changes in recent 40 years are analyzed using daily sunshine duration and wind velocity data of 6 stations in naqu from 1961 to 2000

    摘要利用那曲地區6個氣象站1961 - 2000年逐日日照時數和風速資料，採用常規統計方法和墨西哥帽小波變換分析那曲地區近40年日照時數和風速的地理分佈以及年內、年際、年代際變化規律。
  6. The result showed that the contamination situation in the lower zone of the office, i. e. the zone of occupants, was affected by of that of supply air. the supply air contamination should be kept to a low level in order to provide a good indoor air quality. however, the variation of the supply pollutant concentration has no influence on the indoor contaminant distribution of such system

    本文針對氣態污染物，研究了不同送風濃度對系統的影響，結果表明：置換通風房間的下部區域受送風污染物濃度的影響較大，人的工作區恰好處于該區，實踐中需要控制好送風濃度以保證人呼吸區的空氣品質；但是送風濃度的變化並不影響置換通風下污染物的分層分佈的特點。
  7. Studying the heat - mass transfer and multi - spices electric - chemical reaction, a dynamic temperature model was deduced for molten - carbonate fuel cell stack. the thermal radiation, shift reaction, and the change of gas spices were considered in this model. establishing momentum equation, the paper has developed a 3d temperature and flow fields model for mcfc stack based on cfd technique

    建立了熔融碳酸鹽燃料電池堆內部單體的暫態溫度模型，並考慮了電堆的輻射換熱、轉換反應、反應氣體組分變化對溫度場的影響；根據mcfc的微分控制方程組，考慮氣體組分的熱力學性質及動量變化的影響，利用數值分析方法求解熔融碳酸鹽燃料電池堆的三維流場與溫度場，分析了各作用因素對熔融碳酸鹽燃料電池堆溫度分佈的影響機制。
  8. And if it is the drying of relative light and small granular and powder like materials, cloth bag dust catcher is needed, and the pneumatic feeder apparatus is offered as a choice. add particulate material into fluid - bed dryer by feeder and send the filtered and heated clean air into fluid - bed by air - blower

    散粒狀固體物料由加料器加入流化床乾燥器中，過濾后的潔凈空氣加熱後由鼓風機經分佈板與固體物料接觸，形成流態化達到氣固相的熱質交換。
  9. These characteristics make it very clear that factors influencing the sea - atmospheric exchange of co2 in marginal continental shelf seas are very much complicated than those in open oceans

    上述分佈特徵表明，陸架邊緣海海一氣二氧化碳交換的影響因素較大洋要復雜得多。
  10. At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily

    同時從靜電強化換熱理論出發，建立了表徵線板電極間的電場和流場分佈的數學模型，並根據線-板電極間的邊界條件，利用有限差分法和超鬆弛迭代法，分別就不同氣流初速度和不同外施電壓的情況下，對線-板空間的電場和流場進行了數值模擬，計算結果與理論分析基本一致。
  11. In the thesis, we proposed a random lattice model of mea the lattice model randomly occupied by three kinds of particles, pt / c, nafion and ptfe ( poly - tetra - fluoro - ethylene ), was generated on a computer by the means of monte carlo method. it was supposed that current was only produced on those catalysts which have not only channels of electrons via carbon but also have channels of proton via nafion. the purpose of the work, in a word, is to find how many catalysts, pt / c, with such a two - types channels

    本文首先建立了質子交換膜燃料電池的膜電極的隨機方格子模型，在電極模型各格點位置用montecarlo方法生成隨機分佈的電極粒子、 nafion粒子和聚四氟乙烯團粒，認為只有那些既有質子傳輸通道，又有連續的電子通道和氣體擴散通道的胞元才產生有效的電流，而其餘胞元不產生電流，把電極的輸出電流轉化成一個概率事件。
  12. The distribution of non - structural gas reservoir is constrained by hydrocarbon generating depression and the distribution of high efficient reservoir, the non - structural gas reservoir is often located in a coincident position of the high efficient reservoir and in the crossover of uplift with depression

    非構造氣藏分佈受生烴坳陷和高效儲集層分佈制約，常位於氣源巖與高效儲集層的疊合部位、隆起與坳陷的轉換部位。
  13. Orsm includes physical processes such as radiative transfer, phase changes of water substance, re - distribution of energy due to cumulus convection, transport of momentum, energy and moisture by turbulence, and exchanges between the atmosphere and the surface layer

    ： orsm中的物理過程包括輻射交換水分的相變積雲對流所帶動的能量重新分佈湍流所引發的動量能量和水汽輸送大氣與地面層之間的各種交換等等。
  14. Above all, the surface of the gas turbine blade including stator and rotor heat transfer coeficience with no film cooling hole was studied with the main stream reynolds number of 150000, 200000 50000, 300000, 350000, 400000. then, the heat transfer coefficience when all cooling holes opened and only one cooling hole opened was studied partly. and it ' s studied how the mainstream reynolds number, blowing ratio and the position of holes affect the heat transfer coefficience of the surface of blade

    對導葉和動葉，都是先研究了在150000 ， 200000 ， 250000 ， 300000 ， 350000 ， 400000雷諾數下，沒有氣膜冷卻時的表面換熱系數分佈，然後研究了氣膜孔全打開和只打開單排孔時的表面換熱系數分佈曲線，重點研究來流雷諾數，吹風比和不同孔位出流對換熱系數分佈的影響規律。
  15. Aiming at the effects of distributed capacitance on accurate fault location, a new method based on the distributed parameter model, where the two - terminal data of the transmission lines are utilized, is proposed

    摘要基於線路的分佈參數模型，並且利用線路兩端工頻電氣量和相模變換，提出了在模域中進行故障測距的演算法。
  16. A new method is developed to predict the temperature distribution of cooling - plate with non - uniform heat load on the surfaces, meanwhile, two types of cooling - plate used in the environment control system of airplane are studied experimentally under conditions of different reynolds number of air and surface heat loads

    摘要提出了一種新的冷板簡化數學模型，把翅片摺合成導熱系數?各向異性的等效厚度層實芯板，將冷板與空氣的對流換熱作?等效層的穩態導熱問題，計算了表面熱源非均勻條件下冷板的溫度分佈。
  17. The effective optimization design programs for different cases are developed by integrating the following several aspects which involves the flow analysis, adjoint equation solution, gradient solution, optimal arithmetic and grid generation. some practical design tests for airfoil and wing show that the continuous adjoint approach is very effective and useful method for aerodynamic optimization design. at the same time, we have done the research of aerodynamic optimum design for airfoils by using navier - stokes equations

    （ 4 ）研究了基於控制理論和三維navier一stokes方程的優化設計理論，在計算坐標下詳細推導了該優化設計理論，得到了計算坐標系下描述的共扼方程數學描述形式，並以給定目標壓力分佈的氣動反設計為例，導出了相應的共扼方程邊界條件，以及關鍵的梯度求解具體表達形式，為了求解方便，把計算空間上描述共扼方程表達形式變換到物理空間中進行描述，通過與ns方程表達形式對比分析，最終給出了一種直觀的共轆方程表達方式。
  18. There is no thoroughly rounded theory about displacement ventilation system in our country at present and our research begins recently. the study work of this paper will be useful for further optimization design of displacement ventilation system. this dissertation includes five parts. the first part introduces the development of the displacement ventilation and the background of research in domestic and oversea. in the second part, it gives working principle of displacement ventilation system and it ’ s advantages to the mixture ventilation. the study also gives a series of indexes to evaluate displacement ventilation system and specifies air supply terminal device and so on. it is needed to simulate and analyse the velocity field, temperature field and distribution of flow field. this is the third part. the forth part specifies the simulative method for thermal stratification of displacement ventilation system. it gives some factors affecting thermal stratification height such as inlet temperature, inlet velocity, heat transfer of wall body, distance of heat source and so on

    本文的研究工作主要包括以下幾個方面的內容: （ 1 ）綜述了國內外相關的研究現狀和研究背景; （ 2 ）簡介了置換通風的工作原理，並分析了它相對于混合通風的優良特性及評價指標、末端裝置等; （ 3 ）對採用置換通風方式房間的溫度場、速度場和氣流分佈進行了模擬計算與分析; （ 4 ）對採用置換通風方式房間的熱力分層高度進行了模擬計算，並分析其影響因素，如:送風溫度、送風速度、圍護結構傳熱和熱源分佈等; （ 5 ）擬合了無量綱熱力分層高度相應于送風溫度t 、送風速度v 、熱源間距離l和圍護結構傳熱q的經驗公式。
  19. Using cfd simulation ? analyzes the effects of differences of heat source distributing on the airflow organization of displacement ventilation ? accounts for the characteristics on removing the remaining heat when using displacement ventilation ? and at the different heat source distributing ? the similarities anddifferences of temperature fieldandvelocity field, points outthe merits of displacement ventilation on assuring the indoor air quality

    利用cfd模擬技術，分析熱源分佈區域的不同對置換通風氣流組織的影響，說明置換通風方式在消除室內余熱方面的特點，以及在不同的熱源分佈下，工作區溫度場和速度場的異同，指出置換通風方式在確保室內空氣品質方面的優點。
  20. The distribution of the mass flow rate, the heat transfer coefficients and the film effectiveness of cylindrical holes was measured. the influence of mainstream reynolds number, blowing ratio and the position of holes on flow rate, the heat transfer coefficients and the film effectiveness was studied greatly

    測量了氣膜孔的流量系數、氣膜孔下游換熱系數和冷卻效率的分佈，重點研究了主流雷諾數、二次流吹風比以及孔排位置對氣膜孔的流量系數、氣膜孔下游的換熱系數和冷卻效率的影響。
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