氣流型狀 的英文怎麼說
中文拼音 [qìliúxíngzhuàng]
氣流型狀
英文
airflow pattern- 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...
- 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...
- 狀 : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
- 氣流 : 1 [氣象學] air current; airflow; wind current; airstream2 [語言學] breath氣流紡紗 open end spinni...
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As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation
眾所周知,一般的反問題和混合問題的最大特點,是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下,直接得到葉片的幾何形狀,它可以使葉型型面與表面氣流參數有機結起來;其不足之處在於,對設計者而言,很難給定理想的葉片表面壓力分佈或速度分佈,並且有時會得到一個非物理解,如:得出的初始葉型可能會出現前緣、尾緣不封閉的現象。According to their space position, the seismic features of shallow gas in this region can be divided into three groups : ( 1 ) features in the stratum : acoustic blanket, acoustic curtains, acoustic turbidity, irregular strong top reflection boundary, and phase pull - down in both flanks ; ( 2 ) features of the seabed : seabed pockmark and giant sunken pit ; ( 3 ) features in the seawater column : acoustic plumes, cloudy turbidity and point - line - type reflection
該區的淺層氣地震特徵按空間位置分為3大類: ( 1 )地層中的特徵:聲學空白、聲學幕、聲學擾動、不規則強反射頂界面、兩側相位下拉; ( 2 )海底面的特徵:海底麻坑、大型塌陷坑; ( 3 )海水層中的特徵:聲學羽流、雲狀擾動、點劃線反射。It was well known that the main process of precipitation formation was collecting cloud water in the warm area and ice phase particles melting in the cold area. positive vertical velocity existed between 700hpa and 500hpa in the warm area and near surface in the cold area. wind convergence existed at the height of 700hpa, and divergence existed above and below the height of 700hpa
通過對降水雲系的綜合研究,建立了河南省春季層狀雲降水概念模型:暖區降水主要通過雲水碰並形成,冷區降水機制以冰粒子融化等冷雲過程為主;暖區700一50ohpa通常有上升氣流,冷區上升氣流分佈在近地面附近: 700沖a存在風場的輻合,其上下則主要是輻散區;水汽主要集中在7o0hpa高度上,暖區水汽來自南、東南方向,冷區水汽以西南輸送為主;暖區位勢不穩定分佈在o 。In this dissertation, the pulse jet style, the influence on the shock wave, the flow in the tube and the cooling effect was deeply studied theoretically and experimentally. the influence of the pulse jet style on the forming of shock wave and the shock wave intensity was explored. the initial disconnection style in oscillating tube vented and the initial disconnection breakdown was proposed by different pulse jet style
本文對脈動射流的型式及其對激波、管內流動及冷效應的影響進行了較系統的理論和實驗研究,主要包括:探討了脈動射流的型式對形成管內激波形成及激波強度的影響,給出了不同脈動射流的型式下振蕩管開口端初始間斷的類型,對初始間斷進行了分解,導出了包含進氣、排氣參數及工質物性參數的管內入射激波馬赫數mj的表達式,給出了管內激波形成的三種原因及其所對應的脈動射流型式和具體的工作狀態。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。Another measure of holdup is the k factor used by bankoff in connection with the bubble flow pattern in gas-liquid flow.
滯留現象的另一個度量是Bankoff在氣-液流動的泡狀流型中所採用的因數K。In arbitrary curvilinear coordinates, the wall function is used for treating near wall regions. the influences of two different inlet gas parameter distributions and turbulent combustion models, as well as three different afterburners on turbulent combustion flow fields and wall temperature profiles are calculated. comparisons of experiment results and calculations results show that second - moment combustion model is reasonable for modeling turbulent reacting flows, inlet gas parameter distributions is more important. calculation method is reliable and can be used for the optimum design of afterburner
數值研究三種不同幾何形狀、兩種進口氣流參數分佈、兩種紊流燃燒模型等對加力室內各氣流參數、隔熱屏和加力室筒體壁面溫度分佈的影響,計算結果與試驗數據比較表明:不同幾何形狀加力室對加力室內紊流燃燒流場的影響要比進口氣流參數分佈大些,正確給定進口氣流參數分佈較為重要,二階矩紊流燃燒模型更適用摸擬三維紊流燃燒流動,計算方法合理,編制的計算程序可靠,可供加力燃燒室優化設計用。Column reactors are important facility in which the mass and heat transfer happens. since bubbly flow is a basic flow pattern of gas - liquid two - phase flow in the column, thorough study on bubbly flow is of great scientific significance and important value for practical industry application
鼓泡塔反應器是重要的傳熱傳質設備,鼓泡塔泡狀流是氣液兩相流的一種基本流型,對泡狀流進行廣泛而深入的研究具有重要的科研價值和工業應用背景。4. for steady incompressible flows, the effects of reynolds number and thickness of airfoils on the aerodynamic characteristics are studied
研究了在二維定常不可壓流動狀態下雷諾數和翼型厚度等參數對翼型氣動特性的影響。The research on vertical conduit flow of gas - liquid two phases in wellbore aims at the classification, transition and judgement of flow pattern, according to the pressure distribution of oil - gas - water mixture in wellborne, by which the reliable basis will be provided for understanding of well performance, rational control / monitoring and regulating of well flow regime and the design of gas lift
摘要井筒兩相管流研究的主要目的是用於井筒內流體流型的劃分和流型的轉變與判斷,其基本依據在於井筒內油氣水混合壓力的分佈狀況;在了解了井筒混合流體的壓力分佈狀況之後,能夠為掌握油井生產規律、合理控制和調節油井式作方式及氣舉設計提供可靠的依據。Also the thermodynamics condition and energy flow of the parallel - flow air cooling mode that is one of the modes of battery ' s temperature management system is studied, and the bond graph model of the temperature management system is built
研究了電池溫度管理系統的常用的平行氣流風冷方式的熱力學狀態和能量流動,並建立了鍵合圖模型。They are jet formula method, cfd method and model experiment method considering the great many merits of cfd method such as easily applying to complex geometric, independent of experiential parameters and easily simulate for many conditions and so on, this thesis use cfd method to study of the air distribution of certain pratical project
對于地下電站高大廠房氣流組織的研究目前有三種方法:射流公式法、 cfd方法、模型實驗法。 cfd方法以其易於適用復雜幾何形狀,不依賴經驗參數,易實現多工況模擬等諸多優點而倍受青睞,因此,本文採用cfd方法對某一實際工程進行了氣流組織研究。The study commenced in october 2003 to explore the feasibility of establishing some protocols to assess the effects of major planning and development proposals on external air movement for the achievement of enhanced macro wind environment
二零零三年十月,本署展開研究,探討可否設立若干規程,以評估大型規劃和發展建議對戶外空氣流通情況的影響,從而改善整體環境的氣流狀況。Another measure of holdup is the k factor used by bankoff in connection with the bubble flow pattern in gas - liquid flow
滯留現象的另一個度量是bankoff在氣-液流動的泡狀流型中所採用的因數k 。This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades. a mini wind tunnel is designed and set up which also can be used in other micro flow experiments. on the basis of this mini wind tunnel, three mini flow experiments, including micro jet experiment, micro boundary layer experiment and mini - turbine cascades experiment, have been carried out
本文以某型微型渦輪噴氣發動機研製為背景,以認識微尺度下粘性流體流動狀態及其機理和微渦輪葉柵通道內部流動特性為目的,設計並搭建了除本實驗外還可供其他流體力學實驗使用的微型風洞,並在該微型風洞基礎上進行了微尺度射流實驗、微尺度壁面邊界層實驗和微尺度渦輪葉柵實驗。In this paper, the transition from churn flow to annular flow for upward gas - liquid in vertical concentric annulus is studied and a transition model is developed by considering the structural feature of the concentric annulus and the flow characteristics for churn and annular flows in the concentric annulus
根據團狀流及環狀流的流動特性,並考慮同心環形管的結構特徵,建立了垂直同心環形管上升氣液團狀流向環狀流轉換的新的理論模型。The experimental results show that the method is effective to identify the flow patterns of bubbly, plug, stratified, wavy, slug and annular in a horizontal pipe. the identification accuracy is shown as follows : bubbly flow is 93. 3 %, plug flow is 85. 3 %, stratified or wavy flow is 97. 3 %, slug flow is 98. 6 %, and annular flow is 92. 7 %. an estimation of the process time is 22 frame / s
實驗結果表明,該方法能自動有效地識別水平管道內的氣泡流、塞狀流、層狀流、波狀流、彈狀流和霧環狀流等基本流型;識別準確率如下:氣泡流為93 . 3 ,塞狀流為85 . 3 ,分層流為97 . 3 ,彈狀流為98 . 6 ,霧環狀流為92 . 7 ;識別圖像速度約為22幀秒,適合於在線實時識別兩相流流型。The experimental results show that the fuzzy neural network can accurately identify the flow patterns of slug, plug and bubbly in a horizontal pipe
實驗結果表明,利用該模糊神經網路能準確地識別彈狀流、塞狀流和氣泡流等基本流型。The air flow state of the commonly used mixed flow tunnel drier ( mftd ) was measured and studied in this paper
摘要通過對洞道混合式乾燥機氣流狀態的測試分析,對該機型的結構進行了改進設計。This paper conclude the history and present situation of the research of the compression wave home and abroad ; summarize the forms dimensions of the railway tunnels and tunnel hoods abroad ; discuss the physics model and mathematics model of the air flow when high - speed train running in a tunnel and introduce the compulation method of the pressure in tunnels briefly
本論文首先總結了隧道壓縮波研究的歷史和現狀:針對高速列車所引起的空氣動力效應要求,統計了國外高速鐵路隧道及各種緩沖結構的形式和尺寸。討論了高速列車在隧道內運行中引起的空氣流動物理模型和數學模型,並簡單介紹了隧道內空氣壓力的計算方法。分享友人