turbulent air 中文意思是什麼

turbulent air 解釋
湍氣流
  • turbulent : adj. 1. 激流的；湍流的。2. 騷亂的；強橫的。
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  1. The ground always releases heat, making turbulent air current

    地面經常釋放熱量，造成有湍流的空氣流動。
  2. When the dragline is caught in a turbulent breeze, it becomes highly contorted, catching air like an open parachute and sending the spider on an unknown journey

    當遇到不穩定的氣流時，蜘蛛網就被劇烈扭曲，象空中張開的降落傘一樣，將蜘蛛送上一段未知旅途。
  3. The effects of air ' s absorption of heat, scatter, turbulent and thermal blooming on the laser beam transmitting under the air breakdown threshold value are analysed when laser transmit in the air and the result can be used designing of the laser system

    摘要系統分析了激光在大氣中傳輸時在擊穿閾值以內，由於大氣汽溶膠的吸收、散射、大氣湍流、大氣熱暈等線性非線性問題對光束控制系統的影響，為激光系統提供指導。
  4. The research object of this thesis is a chip - array that is fixed on one of printed circuit boards ( pcb ), which are located in a forced air field ( forced convection ) in an electronic case ; and from the essential equations of airflow we can deduce the mathematical model of the turbulent flow ; then we can establish the finite element algorithm and apply the fe software to work out the equations of turbulent flow, finally we can use the software to display and analyse the field of flow and temperature

    本文以處于強迫空氣對流流場中的某pcb板及其板上的電子元件陣列作為研究對象，推導了紊流流場的數學模型，並建立了相應的有限元求解格式，應用有限元法分析軟體對該系統的紊流流場和溫度場進行了模擬分析：解算出pcb板上各電子元件的溫度分佈；並提出了用於求解系統風道特性曲線的cfd方法。
  5. Abstract : the distribution of cooling air which is in the grille - brick of the inner combustion hot air stove has been simulated with three dimension turbulent mathematical model so as to find a method which is used to improve the distribution of cooling air in hot air stove. the influence of differential horizontal plates on the distribution of cooling air is discussed. the results show that original big circle round field of flow in the pillar - cavity is changed into full one - way field of flow and edges gas flow, at the same time, is increased by horizontal plates. there is a different function with horizontal plates and vertical plates. to make the uniform distribution of cooling air in the hot air stove, it is necessary that horizontal plates and vertical plates are used in a combined way

    文摘:應用紊流三維數學模型模擬內燃式熱風爐內冷風在格子磚柱中的分佈，尋求改善其分佈的途徑.討論了加設不同布置的水平導流板對氣流分佈的影響.模擬結果表明，在支柱空腔內加設水平導流板改變了原有大迴旋流場，使迴旋流變成大面積的單向流.通過在支柱空腔內加設水平導流板可以發展邊緣氣流，這恰好與加設豎直導流板的作用相反，水平導流板和豎直導流板的結合使用有望實現冷風在格子磚柱中的均勻分佈
  6. In the third chapter of this dissertation, based on the physical and chemical properties of hydrogen and the combustion characteristics of hydrogen, the quasi - dimension combustion calculation model of hydrogen ? fueled engine is set up through analyzing the characteristics of turbulence flame and chemical reaction kinetic of hydrogen ? air mixture. the model includes the dual ? area thermodynamics sub - model, quasi - dimensional turbulent entrainment combustion sub ? model, turbulence flame promulgating sub ? model, hydrogen - air mixture chemical kinetic sub - model and loss of heat transfer sub - model and so on

    本文從氫燃料的物化特性和燃燒特徵著手，通過分析氫空氣混合氣燃燒的湍流火焰結構和燃燒化學反應動力學，基於雙區燃燒模型，建立了包括雙區熱力學、準維湍流卷吸燃燒、湍流火焰傳播速度、氫空氣混合氣燃燒化學反應動力學以及傳熱損失等模塊的燃燒模型，並給出了相應的計算方法。
  7. 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。
  8. The system input in this case is turbulent air which produces random pitching motion of the vehicle.

    在此情況下，系統的輸入是紊流大氣，它使飛行器產生隨機俯仰運動。
  9. The new study points out that the 20 - year - old model for spider " ballooning " which assumed that spider silk is rigid and straight and spiders just hang at the bottom was flawed when applied in moving, turbulent air

    新發現指出20年前提出的「氣球模式」有漏洞，特別是把它運用到蜘蛛遇到流動的，不穩定的氣流的情況下。 「氣球模式」假設蜘蛛絲是又硬又直的，而蜘蛛則吊在絲網的末端。
  10. The turbocharger noise is formed by the rotation noise resulting from the periodical air cutting of the fan blade and the turbulent noise of high - speed gas flows. as a continuous high frequency noise, it mainly falls between the 500 to 10 000 hz range

    渦輪增壓器的噪聲是由於葉片周期性地切割空氣產生的旋轉噪聲和高速氣流形成的湍流噪聲而形成的，是一種連續性的高頻噪聲，主要分佈在500 ~ 10000hz的頻率范圍。
  11. The variation of sensible heat flux is dominated by air - sea temperature difference. interannual variability of turbulent heat fluxes is examined using svd, eof and mtm methods

    熱帶太平洋enso事件通過對walker環流的調整減小熱帶大西洋itcz區的風速值，湍動熱通量亦隨之減小。
  12. The turbulent characteristics of high - velocity sediment - laden and aerated flow are more other than the clear water flow of single - phase and current of low speed. in a special circulating system with high velocity flow, some flow parameters such as boundary shear stress and pulsation pressure are measured. an investigation is made on the turbulent characteristics of the three - phase flow of water, air and sand

    本文針對高速含沙摻氣水流的運動規律有別于低速水流及清水單相流，在自己研製的高速渾水循環系統中，通過對高速含沙摻氣水流壁面剪切應力和脈動壓強等參數的量測，分析了水沙氣三相流的紊動特性，探索了泥沙對固壁的磨蝕機理及減蝕措施，其主要內容包括以下幾個方面： 1
  13. The former one is a product of the pressure pulsation resulting from the fan blade periodically cutting the air, with the blade passing frequency as its base frequency and accompanied by higher harmonics. the wide - band turbulent noise is formed when the rotating fan forces the surrounding air to produce turbulent throw - outs and results in gas thickening and thinning processes

    旋轉噪聲是由於風扇的葉片周期性地切割空氣，引起空氣的壓力脈動產生的，以葉片通過頻率為基頻，並伴有高次諧波。湍流噪聲是由於風扇運動導致的周圍空氣發生湍流脫體，使空氣發生擾動，形成氣體的壓縮與稀疏過程而形成的，是一個寬頻帶噪聲。
  14. Turbulent flow air register

    旋流式調風機
  15. Numerical study of three - dimensional turbulent flow in windpipe of air conditioning train passenger cabin

    空調客車內風道三維湍流流動特性數值研究
  16. Experimental study on three - dimensional turbulent flow and temperature field in air conditioning train passenger cabin

    鐵路空調客車內三維湍流流動及溫度場的實驗研究
  17. In this paper, maccormack explicit time - split scheme, baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions. the results show, in the same entrance condition, the operating mode of scramjet combustor is influenced by the control of fuel

    本文採用maccormack顯式時間分裂法、 b - l代數渦粘性湍流模型及氫-空氣兩步非平衡化學動力學反應模型，模擬了在不同的飛行馬赫數條件下，固定幾何的雙模態燃燒室在不同供油規律下的二維燃燒流場。
  18. Pressure discharge relation of the simple orifice is exponential in air and soil. the flow regime of simple emitter is situated between laminar and turbulent

    簡易地下滴灌灌水器流量壓力關系在空氣和土壤介質中都呈現較好的冪函數關系，其流態介於層流和紊流之間。
  19. 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
  20. The process of indoor air turbulent flow and heating transfer were analyzed in the typical closed room with floor heating room and radiator heating room respectively

    利用phoenics3 . 3商品軟體中的低雷諾數k -模型對封閉房間室內空氣溫度場進行了模擬。
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