heat transient 中文意思是什麼

heat transient 解釋
瞬態加熱
  • heat : n 1 熱;熱力;熱度;熱量。2 體溫;發燒。3 (氣候的)高溫,暑氣。4 【冶金】熔煉的爐次;裝爐量;一...
  • transient : adj 短暫的,一時的;過渡的;匆匆而過的;易逝的;虛幻的,無常的 (opp lasting permanent); 【物理...
  1. Time - dependence of the mathematical model is taken into account, and time - dependent form of pens is deduced. 5. numerical analysis of heat and mass transfer in the adsorbent bed is presented, transient distribution of pressure, temperature, velocity and adsorption in it is obtained

    對吸附床的傳熱傳質規律進行了數值分析,獲得了吸附床內部的瞬時溫度壓力、吸附質速度、吸附率分佈,並通過實驗數據驗證了數學模型。
  2. The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change

    結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超聲波、磁場)介入后,沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化,表現在:鍍液的陰極極化過電位和極化度降低,沉積速度提高;鍍層的結合力、表面質量改善;鍍層中過渡族元素的含量增加,輕元素硼的含量降低,同時證實了稀土元素與過渡族元素共沉積的可能性;鍍層的顯微結構由非晶態向微晶和多晶態轉變;鍍層的顯微硬度與耐磨性提高,力學性能優化;鍍層的矯頑力降低;磁導率提高;鍍層的磁化強度在能量(超聲波、磁場)和輕稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。
  3. Flame tube in aircraft engine undergoes high temperature and high speed airflow washing. a hypothesis was suggested, which takes the transient heat transferring as the main reason to the cracking and damage on flame tube. finite element method was adopted to simulate the thermal fatigue and the hypothesis was reproduced

    發動機火焰筒的熱疲勞損傷是導致火焰筒失效的主要原因,本文提出了一種火焰筒熱疲勞損傷假設,認為火焰筒熱疲勞損傷不是由於發動機的運行和停車時冷熱溫度循環造成的,而是發動機啟動時瞬態溫度傳導過程中材料循環塑性變形的結果,利用該假設結合有限元計算模擬了火焰筒產生疲勞損傷的原因。
  4. Point type heat fire detector meets the requirements of gb4716 - 1993. the test itemsinclude electrostatic discharge, radiated electromagnetic fields, and electrical transient bursts

    點型感溫火災探測器應符合gb4716 - 1993標準的要求。檢測項目有:靜電放電;輻射電磁場;電快速瞬變脈沖群。
  5. The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh, also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements, a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements, mapping the node temperature and the equivalent plastic strain on the integration points

    利用基於變步長中心差分格式的顯式積分方法分析瞬態軋制過程;提取穩態單元集節點形成截面網格;利用隱式積分方法分析軋制道次間隙瞬態溫度場;對型鋼斷面進行平面四邊形網格劃分並映射節點溫度數據;利用六面體單元構建有限元分析模型,映射單元節點的溫度、積分點的等效塑性應變,進行數值分析。
  6. And then the pti method is applied to the solution of transient heat conduction

    其未知量為中面節點溫度,可方便地加入到現有的熱傳導分析程序中。
  7. The direct root - finding method, as a conventional method for analyzing transient heat conduction of wall, will produce much inevitable problem such as root - missing and low efficiency. at all times, people quested for more efficient and simple method to analyze its dynamic heat conduction

    傳統的分析墻體不穩定傳熱的方法?直接求根法存在失根、效率低下等諸多問題,一直以來,人們不斷尋求更加簡單、更高效率的方法來分析其動態傳熱過程。
  8. Then after analyzing the heat conduction in laser diode array, we simply simulate the transient thermal behavior of high power laser diode array and build a two dimensional static model of temperature distribution of it by fem ( finite element method )

    接著分析激光器陣列中熱的傳導,簡單的模擬工作工程中瞬態溫度的變化。然後通過有限元分析法,建立二維溫態分佈,得到穩態工作時,大功率激光器陣列中晶元和載體的溫度的空間分佈。
  9. Heat penetration in high efficiency deep grinding including a transient analysis

    高效深磨加工中熱滲透和瞬態分析
  10. 3 ). the flow velocity and temperature change rapidly in hot plenum under the transient condition such as in the case of reactor scram condition. thermal stratification phenomena will be observed nearby the inlet of intermediate heat exchanger

    在事故停堆后的瞬態分析中,熱鈉池的流場和溫場變化劇烈,並在中間熱交換器的入口附近形成穩定的熱分層。
  11. Standard test method for measuring extreme heat - transfer rates from high - energy environments using a transient, null - point calorimeter

    用瞬變零點量熱器測量高能環境的超級傳熱速率的方法
  12. The formulation for the flow model is given using the finite element / control volume ( fe / cv ) technique based on darcy ' s law of creeping flow through a porous media. the heat transfer model is based on the two - dimensional, transient heat conduction equation, including heat generation. the cure kinetics model is based on kamal ' s model, and the degree of the resin cure as a function of temperature and time

    樹脂流動階段的模擬是根據牛頓流體在多孔介質中的滲流理論,應用darcy定律並使用有限元/控制體技術建立起來的;熱傳遞模型是一個二維瞬態熱傳導方程,考慮樹脂反應放熱;樹脂的固化模型利用了kamal提出的固化動力學方程,將固化度取為時間和溫度的函數。
  13. The transient temperature and thermal stress distribution in disk of heat capacity laser pumped by high power lda are simulated by use of finite element methods, optical distortions and birefringence were computed subsequently

    摘要利用有限元數值方法,模擬計算了熱容模式下片狀激光介質的瞬態溫度分佈和熱應力分佈及其波前畸變和應力雙折射。
  14. Based on a 3 - d transient thermal model with inhomogeneous heat generation, the temperature and thermal stress distribution in the disk of heat capacity laser pumped by high power laser diode array ( lda ) are simulated and analyzed by means of finite element methods

    摘要為了研究激光介質熱畸變對固體熱容激光器的影響,數值計算了高功率激光二極體陣列抽運片狀激光介質的瞬態溫度場和熱應力分佈。
  15. Heat flux is difficult to measure especially transient heat flux, which has not been resolved until now

    熱流測量是熱工測量中的難點,特別是瞬態熱流的測量是熱工測試中一直沒有得到解決的問題。
  16. So the research and development of transient heat flux sensor fills the domestic gap of measurement of transient heat flux in some aspects

    因此瞬態熱流計的研製填補了國內在瞬態熱流測量上某些方面的不足。
  17. In accordance to comprehensive analysis of the transient heat and mass transfer through the adobe building enclosure in the hygroscopic range, it is first to draw up the combined thermal and moisture transfer differential equations through wall - made - of - rammed - soil

    通過對處于吸濕區范圍的生土建築圍護結構的傳熱傳質規律的詳細分析和研究,首次建立了生土建築圍護結構的熱質遷移微分控制方程。
  18. The content of this thesis is the experimental research of transient boiling phenomena, which are the hot spot that was formed in the boiling heat transfer field since 1 970s

    本文的研究內容是自二十世紀七十年代開始在國際上形成的一個沸騰傳熱研究領域的熱點? ?瞬態沸騰現象的研究。
  19. By analyzing and processing bountiful experimental data collected in short time, the curves of temperature variation of fast transient nucleate boiling are then drawn with wavelet analysis theory. also by setting up the mathematical model and applying the temperature variation curves to this mathematical model, heat flux density can be resolved

    利用數學方法? ?小波理論成功分離了快速數據採集系統中溫度信號和噪音信號,得到瞬態沸騰的溫度變化曲線;並通過建立數學模型、利用實驗所得的溫度變化曲線,求解出瞬態熱流密度。
  20. Most key idea and important technique of this algorithm including forecasting model are introduced in this paper. the comparison of the several vbf methods in solving a 2d heat transient initial - boundary problem is given. finally, conclusions of this paper and suggestions for future research are given

    文中給出了虛擬邊界預測演算法的預測模型,詳細論述了虛擬邊界預測方法的主要思想和關鍵技術,並在對一類二維熱傳導方程的求解過程中使用到的各種虛擬邊界預測方法進行了比較及分析。
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