vertical convection 中文意思是什麼
vertical convection
解釋
垂直對流- vertical : adj 1 垂直的，直立的，豎立的，縱的（ opp horizontal ）。2 頂上的，頂點的，絕頂的。3 【解剖學】頭...
- convection : n. 1. 傳送。2. 【物理學】運流，環流；【氣象學】對流，上升氣流。
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Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion
在水利工程中經常需要採用數學模型模擬水流的流態，淺水方程是進行平面流態模擬計算的基本控制方程，但因其忽略了流速垂線分佈的不均勻性，在模擬某些平面流態（如風生流動、河灣水流、潛壩等工程附近的流動）時存在一定的局限性。 -
The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain
作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。 -
Simulation of thermal convection in a vertical slot using the lattice boltzmann model
模型模擬垂直平板間的熱對流 -
Through analysis of potential vorticity in isobaric surface field, in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation, at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance, precipitation also weaken
通過對等壓面的位渦分析，發現了在暴雨發生前，在對流層低層有正位渦擾動存在並向北形成傾斜的擾動柱，同時也反映了對流層低層正位渦擾動對強對流天氣的觸發作用；隨后高層正位渦向下擾動，形成一個垂直擾動柱，這時對應降水的發展階段：在暴雨的鼎盛階段， 600 700hpa上空維持水平分佈的等值線，在其上還有正的位渦擾動；當近地面出現負的位渦擾動時，降水隨之也減弱。 -
This thesis brings some new proposals for the computation of temperature rise in nature oil transformer. some useful formulas for convection calculation of vertical and horizontal duct are given. so temperature decrease at the surface of discs and temperature rise of oil flow can be obtained
得到了較為適合的垂直油道、水平油道自然對流換熱特性數經驗關聯式，並據此得到了自然油循環變壓器垂直油道和水平油道線餅表面溫降和油流溫升的計算方法。 -
When insulating glass is incline installation, because of the molecule ' s upright moving route is shorten, the heat convection & conduction is increase in vertical direction
當中空玻璃傾斜時，由於上下方向的分子運動路徑縮短，垂直於玻璃方向的對流熱傳導增加。 -
Specifically, the line of deep convective seems to provide the waves energy through enhancing mass convergence / divergence, the waves tend to help organize convective elements into a line structure, the wave - cisk is an crucial mechanism, and the wave / convection interaction fit certain theories of gravity wave propagation and the vertical structure conceptual model
（ 4 ）在對流初始發生和雷暴併合階段，對流風暴和mgws組成一個具有正反饋機制的耦合系統，兩者以固定位相關系傳播， wave - cisk機制使波動和對流共同增強。 -
Spectrum characteristics of turbulent natural convection between two vertical walls
豎直平板間自然對流的湍流頻譜特性 -
The severe vertical velocity is severe convection trigger to offer dynamical condition for severe convection generation in lower - troposphere
對流層中低層比較大的垂直速度為強對流的觸發提供了動力條件。 -
Each pbl scheme is different in its formulation of vertical mixing within the pbl and the surface fluxes, which in turn leads to the difference in upper free convection atmosphere
由於邊界層參數化方案的多種多樣性，也就存在著各自的優點，同時也存在著各自的局限性，至今沒有一個定論。 -
In structure of the heat mirror, because of the heat mirror film block off gas molecular moving route in upright direction, the heat convection & conduction are decreased in vertical direction of the glass
在熱鏡結構中由於熱鏡薄膜阻擋了氣體分子上下運動的路徑，垂直於玻璃方向的對流熱傳導顯著降低。 -
Inside of insulating glass installed upright, because of the gas molecule ' s upright moving route is longer than transverse moving route, the heat convection & conduction is less in vertical direction of glass
當中空玻璃傾斜時，由於上下方向的分子運動路徑縮短，垂直於玻璃方向的對流熱傳導增加。
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