非穩態導熱 的英文怎麼說
中文拼音 [fēiwěntàidǎorè]
非穩態導熱
英文
unsteady heat conduction- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 態 : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
- 導 : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
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For a soil or rock of water - lacked, a heat transfer theoretical model is developed, which is a steady or unsteady, the results show that reservoir temperature, thermal diffusion coefficient, inlet temperature, flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe. it can deduce that intermit running is favorable for this type of soils and rocks
對于貧含水地下巖土層建立了穩態與非穩態傳熱的理論模型,分析結果表明,巖土層的熱儲溫度、導溫系數、埋地換熱器進水溫度、流量以及地源熱泵系統的運行時間或開停機比,都對埋地換熱器的傳熱過程產生直接影響,可以推斷,對于該類型巖土層的地源熱泵系統,採用間歇運行將是有利的。This paper introduce an exertion way of mensurate unsteady state, much improvement have be mading in the mensuration of the thermal conductivity for conductor of undesirability with the counter system
摘要介紹了一種非穩態測量方法的運用,結合計算機系統,使不良導體熱導率的測定得到較大的改進。Analytical solution for the heat conduction problem in a compound sphere and its applications to an incapsulated pcm
復合球體非穩態導熱的理論解及實例分析Abstract : by using the 3 - d unsteady state heat transfer equation, the heat convection and radiation between the checker and the gas which flows through the checker holes, and the heat conduction among the checker in the chamber of the hot blast stove were studied. the time dependable gas temperature and the temperature distributions within the checker were obtained
文摘:應用三維非穩態熱量傳輸方程,對高爐熱風爐在燃燒過程中蓄熱室內格子磚與氣體之間的對流和輻射傳熱,以及格子磚內部的導熱過程進行了耦合求解.得到了在燃燒期內格子磚及燃燒過程中燃燒廢氣的溫度分佈情況及其隨時間的變化規律According to the physical model, a mathematical model and computational method were proposed. an axially symmetric transient thermal conduction equation was put forward, which included material pyrolysis, pyrolysis gas flow and chemical reaction in charred layer. chemical reaction was controlled by chemical dynamics, and the reaction rate was computed using arrhenious equation
針對物理模型提出了相應的數學模型和數值計算方法,在材料內部建立了二維軸對稱的非穩態導熱控制方程,其中加入了材料熱解、熱解氣體流動以及炭化層內的化學反應等因素的影響,化學反應由化學動力學控制,通過arrhenius公式確定其反應速率。If the soil water content is gradually added from very little value, the value of water content gradient resulted from temperature gradient first is lower, then bigger and finally lower. based on the test data, a linear regression equation about temperature and water content is got. after deciding the temperature and moisture distribution of the soil samples, the problem of coupled thermal and moisture is discussed, the temperature distributions show that the heat - conducting coefficient is related to the density and water content
由溫度場的分佈可以得到:在溫度梯度的作用下,導熱系數是變化的,而導熱系數沿長度方向的變化,使得穩態溫度場沿長度方向成非線性分佈;密實度對溫度場分佈的影響是干密度越大導熱系數越大;初始含水量對溫度場分佈的影響是含水量增大,導熱系數也增大,達到最大值后,含水量增加導熱系數反而減少,含水量對溫度場的分佈有顯著的影響。According to theoretical analysis, a formula that is used in the calculation of heat transfer coefficient can be deduced and the formula is verified with experiment data
本文通過理論分析,推導出非穩態傳熱情況下,圍護結構傳熱系數的計算公式,並且用試件試驗數據進行驗證。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。According to the situation that scholars generally simplify it as unstable heat transfer in one dimension, a new plan for further study is proposed
並針對國內外學者普遍將熱壓過程簡化成一維非穩態導熱過程進行研究的情況,提出了新的研究方案。In this paper, a image processing method has been presented, with this method mean temperature of testing object can be arrived at from infrared picture and the interior temperature gradient of the test pieces in the situation of transient heat transfer can be got. unsteady - state heat transfer mechanism of wall has also been studied in this paper. on the basis of theoretical analysis and experimental study we can get such conclusions : infrared testing of energy conservation of buildings is rapider and more accurate than heat - flow meter method which is popular at present ; heat transfer mechanism in the situation of unsteady - state heat transfer has been analyzed through experiment ; the interior layers ’ temperature of the test pieces ascent in company with
本文在理論分析和試驗研究的基礎上得出以下結論:本文研究的紅外檢測建築節能的方法比目前存在的熱流計法更快速、更準確;用試驗分析了墻體在非穩態傳熱情況下的傳熱機理;試件各層溫度隨著受熱面環境溫度的上升而上升,只是上升的程度不同,響應時間不同,這是由於試件內部有一個蓄熱過程;通過傳熱理論和建築熱工計算推導出了非穩態傳熱情況下的傳熱系數的計算公式;本文用matlab進行紅外圖片的處理,進而得到被測物的平均溫度;用數據處理軟體擬合溫度熱流。Non - steady state numerical solution about one - dimension heat transmitiom
一維非穩態導熱問題的數值計算A new approximate solution for multiple - layer cylindrical walls of unsteady - state heat conduction
一種求解復合圓筒壁非穩態導熱問題的新方法This paper chose the important part of environment field, namely temperature field as research object, looking pavement structure as samdwich, according to heat conduction theory deduce the analytic solution of one dimension unstable state temperature field modified by year temperature of pavement structure in natural environment, tested by practically measure, the analytic solution of temperature field accords with the temperature distributing law of pavement structure
道路環境場研究是路面長期性能研究的重要組成部分和基礎。本文選擇道路環境場中最主要組成部分? ?溫度場為研究對象,視路面結構為層狀體系,根據傳熱學原理推導出自然環境下經過年溫度修正的以天為周期的道路結構?維非穩態溫度場解析解,經過實測驗證,符合道路結構的溫度分佈規律。The cryogenic performance of scq and ssm superconducting magnets are investigated both at steady operation state and at unsteady state in detail, including flow and heat transfer characteristics of cooling medium, and electromagnetic, mechanical characteristics of magnets
本文以bepc中關鍵部件scq 、 ssm超導磁體為主要研究對象,研究了超導磁體在低溫下的穩態與非穩態工作特性中的若干問題,包括冷卻介質的流動特性、傳熱機理,磁體的冷卻結構、電磁與機械性能等。Abstract : based on the heat equilibrium fundamental theory and the unsteady heat transmit equation, a numerical model of temperature field of an underwater oil storage tank was established. the numerical prediction was obtained and compared with the experimental data. the result has shown a good agreement between them
文摘:基於對儲油罐模型試驗和溫度場變化規律的大量實測數據,並對相關參數進行優化分析,依據熱平衡基本原理和導熱微分方程,用有限差分法對非穩態傳熱進行數模計算,得到了與實驗值吻合較好的油罐溫度場計算結果,為工程設計提供依據。Abstract : on the principle of heat - flow distributing and superimposing, this paper has directly obtained the solutions to the steady heat - conduction differential equations for a cylindrical wall with nonuniform generation under the first, second and third boundary conditions
文摘:應用熱流分流和疊加原理,分別直接得出第一、二、三類邊界條件下,非均勻內熱源圓筒壁穩態導熱微分方程的解。分享友人