氣流擴散 的英文怎麼說

中文拼音 [qìliúkuòsǎn]
氣流擴散 英文
air-flow diffusion
  • 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...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 氣流 : 1 [氣象學] air current; airflow; wind current; airstream2 [語言學] breath氣流紡紗 open end spinni...
  1. Combined heat and mass transfer by natural convection which is caused by heat and mass diffusion can be seen in nature and some processes of industry, such as evaporation and desiccation. these processes relate to aeronautics, hydraulics, mechanics, chemical engineering, oceanography and aerography

    熱及物質擴散引起的傳熱傳質復合自然對流常見于自然界和蒸發、乾燥等工業過程，涉及到航空、水利、機械、化工、海洋、氣象等諸多領域，其流體力學和傳質傳熱特性一直是人們研究的重點。
  2. The water current flows over the top of the dentoid baffle to the hydraulic jump as additional momentum. while it is cooperated with a stilling basin, the flowing condition emerged in the basin may be improved greatly and the length and downstream water depth required by the basin can be decreased to a great extent. such an appliance may be also used to solve the problems of insufficiently dissipating water flow energy and aerating flow, which are often faced with those hydraulic engineering constraction as acted by high waterhead, great specific discharge and low froude number

    本文通過齒墩頂部的擴散水舌所形成的附加射流，從上部射入水躍，即可改善消力池內的水流流態，又可降低第二共軛水深，減小水躍長度，增進水躍消能效果，同時還能解決大單寬、低佛勞德數條件下摻氣和消能不足的問題，試驗證實它是一種安全、經濟的消能工。
  3. And the following conclusion was got : generally, the existence of particles would limit and retard the developing of the coherent structure of the turbulent fields ; but when the mass loading is a little high, the existence of particles would promote the developing of the turbulent field ; at the same time, the gas flow field would enhance the particles " dispersion. at this time, the interaction between the two phased would promote each other. this phenomenon is just like the " sympathetic vibration " in mechanical engineering

    認為：在一般條件下顆粒的存在會限制、遲滯流場的發展；但對于質量2002年6月?金晗輝摘要攜帶率較高的情況，在流場發展到一定程度以後顆粒的反作用會促進流場的發展;反之，在顆粒質量攜帶率較高的情況下，受顆粒反作用的氣相流場又會加強顆粒在流場空間中的擴散，揭示出氣粒兩相相間作用在一定的顆粒質量攜帶率條件下存在「共振現象」 。
  4. Particle dispersion due to gravity in gas - particle turbulent flow

    氣粒湍流流動中考慮重力時顆粒的擴散
  5. A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains

    模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。
  6. In addition, the vortex structures of the gas flow field and particle dispersion were studied when the coupling action between the two phases was considered in the case of different mass loading of mediate stokes number particles was provided in the gas - particle plane jet

    另外，文中還模擬研究了氣粒兩相平面射流中不同質量攜帶率下中等stokes數顆粒與氣相流場的相間耦合作用下氣相流場的旋渦擬序結構以及顆粒運動擴散規律。
  7. The magnitude of these variables increased approximately ten times. it helped the rapid releasing of instability energy. the interaction of high - level and low - level mesoscale system leads to the rainstorm. the vertical cross section analysis of potential temperature tells us that rainstorm take place in the warm - moist and instability area. usually locate in the very stiff moist isentropes and it can lead to the development of vortex

    通過對相當位溫的垂直剖面分析，可知兩場暴雨的中低層都為暖濕不穩定區，暖濕不穩定區上部冷空氣明顯擴散，暴雨產生在暖濕對流不穩定區內，通常產生在_ e陡峭和密集區中， _ e陡峭和密集區有利於渦旋發展。
  8. Topics include : molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed - water exchange, air - water exchange, settling and coagulation, buoyancy - driven flows, and stratification in lakes

    探討課題計有:分子和紊流擴散、邊界分層、溶解、相之間的分割、底床與水間的交換作用、空氣與水間的交換作用、沉降和混凝、浮力流以及湖泊分層作用。
  9. Drive arrangements for axial fans with or without evase and inlet box

    裝有或未裝出風擴散道和進氣箱的軸流式通風機的傳動設備
  10. The analysis model and design methodology for the gas field are discussed referring to related documents. the structure parameters of gas manifold, channel, diffusion layer and hydrophobic layer which affect the oxygen distribution are also studied

    本文闡述了氣場分析模型和設計思想，研究了進氣箱、交指型流道、擴散層和疏水層結構參數對氧濃度分佈的影響。
  11. The gas field in pemfc means the gas distribution in gas source, gas inlet tube ( scale of m ), gas - blower, gas manifold ( scale of cm ), channel ( scale of mm ), diffusion layer ( scale of um ), hydrophobic layer and catalyst layer ( scale of nm ). the aim of changing the scales is to make oxygen reach reaction area as evenly as possible

    Pemfc的氣場指在氣源、進氣管（分米級） 、風機、進氣箱（厘米級） 、流道（毫米級） 、擴散層（微米級） 、疏水層（亞微米級） 、催化層（納米級）中的氣體分佈，每一級尺度的變化是為了氣體的進一步均勻化。
  12. Although a dual - mode scramjet ' s configuration is simple and mainly consists of inlet, combustor and wake nozzle, its working process is complicated, especially in the combustor, involving a lot of subjects, including hypersonic aerodynamics, combustion chemistry, etc. the inner flow of a combustor is three - dimensional and complicated, including the interaction of shock wave, deflagration, vortex and boundary layer, and so on

    它涉及到高超聲速空氣動力學、燃燒化學、擴散傳質等多門學科；其內部的實際流動是復雜的三維流動過程，充滿著激波、膨脹波、燃燒波、各種渦系、附面層及其相互之間的干擾，因此，燃燒室問題是整個發動機研究的關鍵所在。
  13. A numerical simulation on liquid - gas two phase leakage dispersion by using two particle turbulent models

    兩種顆粒湍流擴散模型數值模擬氣液兩相流泄漏擴散的比較
  14. Apply to such industry as petroleum, chemical industry, textile, metallurgy, electron and atomic energy, etc., is it filter, charge dust, gas not to spread, is it steam take, catalysis reflect, electrolytic, eliminate noise, damping, hinder fire and sweat function of cooling etc. to flow to have

    應用在石油化工紡織冶金電子及原子能等工業中，有過濾收塵氣體擴散流蒸化催化反映電解消聲阻尼阻火及發汗冷卻等作用。
  15. 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。
  16. Standard test method for available cyanide with ligand displacement and flow injection analysis utilizing gas diffusion separation and amperometric detection

    用氣體擴散分離和電流計探測法對有效氰化物進行配位位移和流量注入分析的標準試驗方法
  17. Chemical kinetical modeling of turbulent jet diffusion flame for methane air

    空氣湍流射流擴散火焰的化學動力學模擬
  18. The unsteady. flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general, utm ), and a new tunnel control method based on utm and neural network model is developed

    本文首次採用更符合實際情況的隧道氣流?維非恆定流理論和污染物濃度?維非恆定對流擴散模型（統稱非恆定流理論模型）進行隧道通風控制方法的研究，並提出了一套基於非恆定流理論和神經網路模型的新的隧道通風控制方法。
  19. Numerical simulation of exhaust gas convective diffusion from a tunnel portal

    隧道峒口廢氣對流擴散的數值研究
  20. When the width of the channel is unchangeable, the more are the numbers of the channels, the narrower the channel becomes, the evener the oxygen on the surface of diffusion layer becomes

    當流道寬度不變時，流道數目越多，流道間隔越窄，越有利於氧氣在擴散層表面上的均勻化分佈。
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