熱力梯度 的英文怎麼說

中文拼音 [rèlìtīdù]
熱力梯度 英文
heat gradient
  • 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...
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 熱力 : [機械工程] heating power
  1. Finite element method was used for the calculation of temperature field, temperature gradient and thermal stress of the coal water slurry ( cws ) ceramic nozzle

    摘要採用有限元法對陶瓷水煤漿噴嘴溫度場、溫度梯度及其熱應力進行了分析計算。
  2. Results showed that the temperature, temperature gradient and thermal stress at the exit surfaces of the cws ceramic nozzle were higher than that of other part of the nozzle

    結果表明：在陶瓷水煤漿噴嘴的出口端面存在較大的溫度、溫度梯度和熱應力。
  3. Differential rates resulting from temperature gradients in the material introduce stresses which can't be removed by later heat treatment.

    由材料內部的溫度梯度引起的速度差將導致產生應力，這種應力是無法用以後的熱處理來消除的。
  4. The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering

    模擬結果表明，掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象，並在端點處產生較大的熱應力，使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著，燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響，交替掃描會影響燒結試樣的質量，實際製造時應採用單向掃描策略。
  5. 2. dynamic meteorology : equations of motion ; geostrophic, ageostrophic and gradient winds ; thickness and thermal wind ; continuity equation ; stream function ; vorticity equation ; divergence equation ; omega equation ; rossby wave ; ekman layer ; numerical weather prediction

    2 .動力氣象學：運動方程地轉風非地轉風及梯度風厚度及熱成風連續方程流函數渦度方程輻散方程奧米茄方程羅斯貝波埃克曼層數值天氣預報。
  6. The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens

    500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件，而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外，又使所控制的區域增溫明顯，使鋒前輻合上升運動加強，為沙塵暴天氣的發生提供了熱、動力條件。
  7. With the focus on the structure and components character of plate metal / ceramics graded coating, this paper extends and improves the thermal elastoplastic analysis model of trilayered materials derived by suresh et al and builds the theoretical model of thermal elastoplastic stresses analysis of plate metal / ceramics graded coating, and this paper also analyzes the thermal elastoplastic stresses and deformation of metal / ceramics graded coating

    本文針對平板狀金屬陶瓷梯度塗層的結構和組成特徵，推廣和完善了suresh等人的三疊層材料的熱彈塑性分析模型，建立了平板狀金屬陶瓷梯度塗層熱彈塑性應力分析的理論模型，對金屬陶瓷梯度塗層的熱彈塑性應力和熱彈塑性變形進行了分析。
  8. This paper also researches on thermal elastoplastic analysis model of multilayered graded coating structures on the basis of thermal elastoplastic analysis model of trilayered materials with the focus on the structural character of graded coating. it builds the thermal elastoplastic analysis theory for the graded coating structure that has a single plastic layer or two plastic layers. it gives the analytical formulas of thermal stresses and the thermal elastic - plastic transform temperatures of graded coating that has a single plastic layer or two layers under the thermal loading

    針對梯度塗層的結構特徵，在建立的三層疊層材料熱彈塑性分析模型的基礎上，對多層梯度塗層結構的熱彈塑性分析模型進行了研究，分別建立了含單個塑性層和兩個塑性層的梯度塗層結構的熱彈塑性分析理論，給出了在熱載荷作用下含單個塑性層和兩個塑性層的梯度塗層的熱彈性-塑性臨界溫度和熱應力分析公式，利用有限元分析對理論模型進行了驗證。
  9. An understanding of electrical emission of concrete may lead to hi practical application such as nondestructive testing of concrete. ( s ) according to nonequilibrium thermodynamics, a mathematical model on the relationship between strain gradient and electric potential gradient is presented

    （ 5 ）依據非平衡態熱力學建立了混凝土中應變梯度和電勢梯度、應變梯此漢理卜人學附士學位論文度和電場強度等力電關系的數學模型。
  10. The conclusions obtained as follows : firstly, the structure ' s free frequency is decreased by the reduction of the mechanical property of the material with the increasing temperature ; secondly the thermal stress produced by the temperature gradient may decrease or enlarge the structures natural frequency ; thirdly, the variety of natural frequency of the alloy structures effected by the heat effect apparently higher than that of the composite material structures

    最後，採用ansys程序分析了合金材料、復合材料的板、彈體結構的熱振動特性。在不同的熱載條件下，取得以下結論：升溫導致的材料機械性能下降都會降低結構固有頻率，而溫度梯度產生的熱應力可能降低也可能提高結構的固有頻率；金屬材料結構的固有頻率受溫度的影響要比復合材料結構的固有頻率受溫度的影響要明顯。
  11. Recently, a great progress has been made in aerodynamic optimization design technologies based on computational fluid dynamics. the control theory approach advocated by antony jameson is the typical methodology among them. its major advantage is that the computation of the sensitivity derivatives of cost function with respect to design variables is nearly independent of the number of design variables, which greatly saves the computational cost

    近年來，計算流體力學（ cfd ）設計技術得到較大發展，其中最有代表性方法是jameson發展的基於控制理論（伴隨方法）的氣動優化設計技術，其顯著優點是目標函數對設計變量的梯度計算幾乎與設計變量數目無關，從而大量節省了計算費用，並成為當前cfd領域的研究熱點。
  12. The effect of the strain gradient on the onset of adiabatic shear instability in gradient - dependent particle reinforced metal matrix composites is investigated by using of linear perturbation analysis in this paper. the analytical results demonstrate that high strain gradient produced by the reinforcing particle will provide a strong a deriving force for the onset of adiabatic shear instability in mmcp

    結果表明：增強顆粒的加入，改變了基體材料的微結構，並在基體中誘導了高的應變梯度，而這種高的應變梯度為mmcp的失穩提供了強大的驅動力，使其更易發生絕熱剪切變形局部化失穩。
  13. ( 5 ) the water circulation system reach a stable state after a year when the exploitation of hdr. namely, there a fixed stress gradient from injection well to production well keeping the normal function, and the stress gradient is higher nearby the injection well, reaching to 43. ompa / km, but the stress gradient is only 10

    （ 5 ）高溫巖體地熱開發的水循環系統在一年後變的穩定，即從注入井到生產井有固定的壓力梯度維持系統的運行，而且在注入井附近區域的壓力梯度較』大，達到43 . ompa / km ，中間區域的壓力梯度僅為10 . 7mpa / km 。
  14. 2 ). it has a great temperature gradient along the height in hot and cold plenums of cefr in steady state. the buoyancy force cannot be ignored because the flow velocity is low in the whole flow regions

    冷熱鈉池在穩態工況下沿高度方向有很大的溫度梯度，整個流動區域內的流速較低，浮升力的影響不可忽略； 3
  15. There are many advantages to heat by air condition system, but there are also many problems. the air distribution of air condition room is often designed according to the summer outdoor parameters. thus, in winter, the hot air will arise with the influence of buoyancy, which result in the decline of vertical temperature gradient and produce a successive of problems

    空調送風供暖有著很多的優點，但也出現了很多問題，由於空調房間的氣流組織一般是以夏季工況為設計工況，在冬季由於送風熱氣流在浮升力作用下上升，引起垂直溫度梯度的增加，並產生一系列的問題，致使空調房間冬季室內熱舒適性較差、能源利用效率較低。
  16. The saffman force does not affect the axial velocity of the flow, while it change the concentration of the particle. the gas - particle two - phase flows in the present of temperature were also numerical simulation

    討論了絕熱、有溫差和添加熱泳力三種情況下的兩相流場，分析了溫度梯度、湍動能、軸向速度和顆粒濃度的變化。
  17. Microstructural change and thermal shock performance of metal / ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy - dispersive spectrometry. the results showed : 1 ) metal microstructure kept intact while ceramic microstructure had been destroyed ; 2 ) thermal shock performance of coatings was interrelated with its function to relax residual stresses, therefore thermal shock performance of gradient thermal barrier coatings was better than that of terraced thermal barrier coatings ; 3 ) thermal shock performance was concerned with metal content in metal / ceramic thermal barrier coatings, which would be improved when metal content was increased

    利用掃描電子顯微鏡和能譜成分分析技術研究了金屬/陶瓷梯度熱障塗層在熱震過程中的顯微組織變化及其抗熱震性能.結果表明： 1 ）金屬顯微組織保持完好，陶瓷顯微組織有明顯的破壞； 2 ）塗層抗熱震性能與其熱應力緩和功能密切相關，梯度熱障塗層比階梯熱障塗層具有更高的抗熱震性能； 3 ）金屬/陶瓷熱障塗層抗熱震性能與其中金屬相含量有關，金屬相含量增加可改善塗層抗熱震性能
  18. Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature, potential vorticity field, it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability, the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front, so are the strength of potential vorticity and the different developing stage of sandstorm

    利用輸出的位溫、位勢渦度場，對沙塵暴天氣進行熱動力條件分析，發現本次沙塵暴天氣發生在大氣層結穩定狀態下，位溫大值區及位溫梯度與地面暖低壓的強弱和移動有著很好的對應關系，位渦的水平分佈特徵和強弱變化對沙塵暴的出現時間和落區有一定的指示意義。
  19. The transition zone quite often shows a decrease in temperature gradient due to the ability of water to absorb up to a 1 / 3 more heat than rock

    由於水具有比巖石能多吸收三分之一熱量的能力，因此，這類有變化的地層通常都顯示出地溫梯度下降的趨勢。
  20. Firstly, this paper describes the optimization problem of thermal stress of fabrication process and steady work process for the hollow cylinder and the infinite plate. then, thermal stress distribution is calculated making use of theoretical formulation and the results can be validated by finite element method. in optimization, the restriction condition is heat insulation performance and the objective function is danger coefficient

    本文首先對平板結構和圓筒結構梯度塗層在制備過程和穩定工作狀態下的熱應力優化設計問題進行描述，然後分別用解析法求解兩種結構的梯度塗層在制備過程和穩定工作狀態下的熱應力分佈，並採用有限元方法驗證了熱應力分佈的結果，在優化設計時，以危險系數為目標函數，以塗層的隔熱性能為約束條件進行設計。
分享友人
分享到 Line

分享到臉書