氣升流動 的英文怎麼說
中文拼音 [qìshēngliúdòng]
氣升流動
英文
gas-lift flow- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 升 : Ⅰ動詞1 (由低往高移動) rise; hoist; go up; ascend 2 (等級提高) promote Ⅱ量詞1 (容量單位) lit...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 流動 : 1. (液體或氣體移動) flow; run; circulate 2. (經常變換位置) going from place to place; on the move; mobile
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Besides, the upward motion on the aweather slope of main mountains of zhoushan archipelago can induce more precipitation and orographic highs
另外,氣流爬越島嶼的主要山脈時的上升運動,會導致迎風坡的降水增多,並誘生中小尺度的地形高壓。Hydrodynamics in an air - lift loop reactor
氣升式環流反應器的流體動力學模型( 3 ) the polar eddy, the west circumfluence on 500hpa medium latitudinal region ands subtropic circumfluence are the key systems of tpnes floods precipitation and, the wet years have abundant vapor, moreover, the omga is positive in all atmosphere
( 3 )極渦、中高緯西風環流系統和副熱帶系統是影響青藏高原東北側區汛期降水的大尺度環流背景關鍵系統。同時,多雨年的主要流場特點是有利於水汽輸送,且整層大氣始終表現為上升運動。The hydrodynamic parameters and mass transfer coefficient are studied in the internal loop airlift bioreactor used in treating wastewater. the hydrodynamic parameters consist of gas holdup, liquid velocity and axial dispersion coefficient
本文從流體動力學和傳質動力學兩個方面考察了用氣升式內環流生物反應器應用於廢水處理的性能。The entering of the tourist and lamp - light gave much energy to furong cave and the temperature in the cave rised slowly. the different temperature between the outer and the inner as the air circulation, would make the cave wet seriously in the summer and dry in the winter. the density of co2 would go up because of piston - effect, cave depositing and the tourists " entering
遊人的進入和洞穴燈光的使用,給芙蓉洞內帶來了大量的能量,致使洞穴空氣升溫;由於動內外的溫度差和空氣的流通,開放的洞穴出現夏季高濕,冬季乾燥的變化現象; co _ 2的濃度會因為活塞效應、洞穴沉積和遊人的進入而升高,但影響最大的還是遊人,當遊客量較大的時候,洞穴co _ 2的濃度會隨遊人進入的數量增加而明顯升高,洞內co _ 2含量峰值記錄最高出現了6200ppm的記錄。Firstly, based on the present research all over the world, a 3d quasi - single phase model is built together with k - equations. the special feature of this model is taking account of the influence of interaction between liquid and gas, that is to say, the influence of interphase drag force, lifting force perpendicular to the relative velocity, virtual mass force and gas or liquid volume fraction in the fluid field have been considered. a 3d two - fluid model is also built in order to describe more accurately the fluid flow on distillation trays by comparing the computational results of quasi - single phase mathematical model with of two - fluid mathematical model
本文在國內外已有的研究基礎上,首先建立了以k - (封閉模型為基礎的三維擬單相流模型,該模型的特點在於充分考慮了氣液兩相間相互作用的影響,即計入了相間曳力、橫向升力、虛擬質量力和氣、液相含率對流場的影響;並建立了塔板三維雙流體模型,主要目的是通過對比擬單相流數學模型、雙流體數學模型的計算結果,建立能夠準確描述塔板上流體流動的數學模型。According to dynamical characteristic of the bubble motion in the flow field, and under the assumptions of isothermal system without interior heat source, uniform bubble size, and ignoring surface tension, the mathematical expressions for interfacial momentum exchanges have been deduced which include drag, virtual mass force, and lift
針對氣液泡狀流中氣泡運動力學特性,在系統絕熱、無內熱源、忽略表面張力、氣泡尺寸均一前提下建立了氣液相間曳力、虛質量力、升力的數學模型表達式。Installation requires no water draining. simply lower the pipes at tank side and let it sink to the bottom to send up air for aeration. for maintenance, pull up pipe to remove surface deposits, then return it to bottom again
個細孔出氣,上升帶動全池污水繞流均勻,施工免抽水,由池上放入污水池邊,使其沉下池底送風曝氣即可,保養時上拉清除表皮再放回即完成。It uses solar radiation to provide upward momentum to a mass of air, thereby converting the thermal energy into kinetic energy
它利用太陽輻射作為動力,為空氣流動提供浮升力,將熱能轉化為動能。In this paper, the standard three - dimensional k - two - equation turbulence model which modifies the item of buoyant effect and simple algorithm are adopted, wall functions are used to deal with the boundary condition and a simplified method - box method is used to model the supply air boundary condition
本文數值計算採用經過浮升力項修正的k -兩方程模型和simple演算法,壁面邊界條件採用標準壁面函數,風口邊界條件採用盒子方法。廠房內的氣流運動主要受風口出流動量的制約,因此選擇合理描述入流邊界條件的風口模型對數值模擬至關重要。A two - dimensional double diffusive laminar natural convection in rectangular enclosure is detailed analyzed. the results show that when the thermal and solutal buoyancies aid each other, the airflow consists of one main cellular structure and is steady, regardless of the relative strength variation between the heat and pollutant sources. there are multiple flow structures, however, according to the relative strength when the buoyancies opposing each other
模擬結果表明雙擴散自然對流系統的空氣流動與傳熱傳質特性完全是由離散熱源與污染源浮升力之間的相互作用關系訣定的:當離散熱源與污染源浮升力協同作用時,自然對流呈比較穩定的單一流動結構;而當熱源與污染源浮升力對抗作用時,自然對流系統隨它們之間強度變化呈現出多種流動狀態。( 5 ) the spring greenland sea - ice extent is larger ( smaller ) : then during the following summer the high of the japanese sea is stronger ( weaker ), and the low of the asian land is stronger ( weaker ), which make the pattern of low west and high east easily ( uneasily ) form ; the ascending movement over north china is strengthened ( weakened ) ; the summer monsoon of east asia is stronger ( weaker ), then the southeastern, warm and damp airflow towards the north china is stronger ( weaker ), and the cold airflow of the high level over the north china is also stronger ( weaker ), which make the convergence of the cold and warm air over north china easily ( uneasily ) form ; the sst of the east pacific ocean is lower ( higher ), while the sst of west wind drift is higher ( lower )
( 5 )春季格陵蘭海冰面積偏大(小) :後期夏季日本海高壓偏強(弱) ,而大陸上低壓也偏強(弱) ,易(不易)形成西低東阻的形勢;華北地區的上升運動增強(減弱) ;東亞夏季風偏強(弱) ,向華北地區輸送的西南暖濕氣流偏強(弱) ,而對應高空華北地區上空冷空氣活動偏強(弱) ,利於(不利於)華北上空冷暖空氣的交匯;夏季赤道東太平洋海溫偏低(高) ,西風漂流區海溫偏高(低) 。在以上的環流背景下,華北夏季降水偏多(少) ,易澇(旱) 。The above analysis showed that this heavy rainfall event took on obvious meso - scale characters and was the combination of the three flows, so we can deduce : ( 1 ) surface southeasterly wind and topography may play the main role in this event ; ( 2 ) the easterly cold air rushing into the southern shaanxi province in the lower troposphere was strongly relative to the form of surface cold - front type of occlusion ; ( 3 ) there were two reasons for the secondary circulation ' s strengthen in the evening, one was the effect of a mountain - valley wind and the other may be latent heat leading to ascending motion ; ( 4 ) the shape of potential instability stratification corresponded well with the development of the warm - moisture advection ; and ( 5 ) the vapor providing essential thermodynamics was transported by a southwesterly low - level jet from the bay of bengal and the south china sea. furthermore, with the effect of terrain, the southern shaanxi province became the center of this extremely heavy rain process
中尺度結構分析表明,本次暴雨具有明顯的中尺度特徵,是由三支氣流共同作用的結果,分析發現( 1 )地面東南風和地形在這次大暴雨過程起主要作用; ( 2 )東路冷空氣主要是通過中低層侵入陜南地區的,並與地面冷式錮囚鋒的形成密不可分; ( 3 )夜博士論文:中尺度地形對陜南暴雨的影響研究間垂直次級環流發展加強可能有兩個原因,一個是由於地形山谷風的作用,另一個是降水的潛熱釋放激發了上升運動: ( 4 )位勢不穩定層結的形成與低層暖濕平流的發展有很好的對應關系; ( 5 )本次暴雨的水汽主要靠偏南風急流將孟加拉灣和中國南海的水汽輸送至西北地區東部,為暴雨的發生提供了必要熱力條件。The occurrence of cirrocumulus clouds indicates the distant presence of a convergent zone such as a pressure tough or a cyclone in lower levels ; or a frontal zone where cold air meets moist warm air. vigorous convection and lifting motion bring water vapour up in the sky where the water vapour sublimes into ice crystals, forming the high clouds
卷積雲的出現顯示遠處地方低層有一強輻合帶如低壓槽或氣旋或鋒面即暖濕空氣碰到冷氣團,向上爬升的交界面形成,強烈的對流和抬升運動將水汽帶到高空,在那裡水汽直接升華變為冰晶而形成高層雲。Numerical simulation of upward microbubble - laden turbulent channel flow
豎直上升通道內微氣泡湍流流動的數值模擬In the swirl, air stream at the periphery tend to have higher temperature compared to that in the center. by means of a separating plate, the airflow is separated into streams of hot and cold air. each stream of air then emerges from a particular end of the tube, named the cold and hot end accordingly
氣體在熱端管的流動過程中,外層氣流溫度升高,內層返流溫度降低,高溫氣流從熱端閥流出,低溫氣體通過冷孔板流出,從而將進渦流管的氣流分離為冷熱兩股溫度不同的氣流。Simulating results reveal that hydrodynamics of catalysts in riser reactor is very complex due to the effect of injection and catalysts backmix dramatically near the nozzle, reaction products unevenly distributie along the riser height, there exists apparently temperature gap between gas - phase and solid - phase near the nozzle and the temperture of two phase is nearly equal at middle - top part
模擬結果表明,由於原料油射流的影響,提升管反應器內催化劑顆粒的流動特徵非常復雜,在噴嘴附近的催化劑顆粒存在明顯的滑落返混;裂化產物濃度沿提升管存在非均勻分佈;氣粒兩相間溫差在噴嘴附近顯著,在中上部氣粒兩相溫度幾乎相等。In 1999, the dipole existed in between the okhotsk high and the depression in the north of northeast china, thus the okhotsk high became active and maintained, the subh was located to an area quite further south than usual. the high persisted in the east region of nw china, the cold air flowed to the mid - lower reaches of the yangtze river along the high. in the east region of nw china, air steam under troposphere was strong sinking motion, and formatted the negative vorticity region, the vapour flux divergence was divgence. lt was apparently that the rain could n ' t occur in the eastern portin of nw china. in 2000 year, okhotsk high was very weak or did n ' t exist in, there was high in the east asia - japan, the subh is located to an area further north than usual. in the east region of nw china, the trough maintained, air stream under troposphere was strong ascending motion, the cycolonic circulation was prevailing, the vapour flux divergence was intensive convergences the rain easy happened in the east areas of northwest china
4多梅雨1999年鄂霍茨克海阻塞高壓與我國東北北部低壓形成偶極子,使得阻塞高壓穩定少動,西太副高位置偏南,西北地區東部持續受高壓控制,冷空氣沿此高壓流經長江中下游地區上空;在西北地區東部對流層中下層氣流下沉運動較強,呈反氣旋渦度,水汽通量散度輻散,不利於西北地區東部降水。空梅雨2000年相反,鄂霍茨克海高壓減弱甚至不存在,東亞-日本為高壓,西太副高位置偏西偏北,西北地區東部處于西風槽中,對流層中下層氣流上升運動增強,盛行低壓環流,水汽通量散度強烈輻合,有利於降水生成。The simulation results reveal that water vapor transportation northward is responsible for the generation of the convective instability in south shandong, and the easterly wind from sea, gravity wave and convergence generated by southward invasion of weak cold air in pbl play main role in trigger, transmission and enhancement of convective systems
定性地給出了中尺度對流系統氣流運動的圖像,即:在邊界層,氣流從東南方向斜升流入中對流區,在系統中垂直上升,約在7000米一9000米高空向東北方向流出,形成非閉合的垂直環流。Numerical results show that the bubble concentration distribution can be predicted by using the two - way coupling of the fluid and the bubble motion, and adding the wall lift force into the bubble motion equation, and the fluid velocity, turbulence intensity and shear stresses modified by the bubble motions can also be revealed
數值模擬結果表明,通過加入壁面升力和採用雙向耦合方法,可以較準確地預測氣泡濃度分佈和揭示氣泡流動對流體湍流結構的影響。分享友人