旋流葉片 的英文怎麼說
中文拼音 [xuánliúyèpiān]
旋流葉片
英文
intervane-
4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes, the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated. the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established. the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases, local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant, heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases, while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant, change of the axial mass flowrate has effect on the whole cavity
結果表明,預旋進氣的優點在於增強了葉片冷卻孔附近的對流換熱效果,局部努謝爾數隨預旋角的增大而有所減小;隨旋轉雷諾數的增加,不論是內轉靜腔室還是預旋腔室的靜盤上的溫度都不同程度的降低:當軸向中心進氣質量流量不變時,隨預旋進氣的質量流量增加,內轉靜腔室的轉盤盤面上的換熱基本沒有變化,而預旋腔室的轉盤盤面上的換熱效果增強;當預旋進氣質量流量不變時,軸向中心進氣的質量流量的改變對整個盤腔都有影響。The dynamo runs at rull speed to drive main shaft, then the main shaft makes the emulsifying wings in emulsification grove rotate, which absorbs the liquid in its brand groove into ring groove through guide vanes on upper and lower sides of the groove. the vanes spins circularly at high speed with the main shatf as center, and the blade and emulsificaton groove cut and crush it continuously. after that. it gers squeezed by the vanes highspeed centrifugal rotation. at last, it finishes isotropt emulsification tratment within extremely short time after continuous circulating mixing
由電動機全速運轉帶動主軸,經主軸轉動乳化框槽內之乳化翼片,使其將桶槽內之液體經框槽上、下兩側之導流葉片吸入環狀框槽內,經以主軸為中心高速圓周旋轉葉片;連續使乳化翼端刀面與乳化框間極小之間系高頻率之強力切割剪斷、粉碎,再借葉片高速離心旋轉排擠,持續循環混合,以極短之時間即可完成均質乳化之處理。The vortex simulated in this article include the shedding vortex induced by the vane trailing edge boundary layer, the endwall vortex generated by the endwall boundary layer interaction, the passage vortex generated by the rotor rotation, and the leakage vortex generated by the tip clearance flow
渦輪級內的渦運動包括:導向器葉片尾緣附而層引起的脫落渦;轉子通道內轉子的旋轉運動產生的通道渦;根腳區兩個端壁附面層干涉,形成的根腳渦;存在葉尖漏流時,出現的漏流渦。The main research outcomes were as follows : ( 1 ) the paper applied quasi - three dimensional design model and optimization design model based on si flow surface that was effected by runner ( impeller ) and guide vane jointly. the vortex flow, blade thickness limitation and runner ( impeller ) blade force functions were taken into account. the paper got the improved runners of hl240 type, which were runner hlx240d and runner hlx240e
主要成果有: ( 1 )應用考慮轉輪來流有旋、葉片有限厚及轉輪(葉輪)葉片力作用的轉輪(葉輪)與導葉聯合作用的基於s _ 1流面的準三維設計模型和優化設計模型,研究出了hl240的改進型轉輪: hlx240d和hlx240e 。Therefore, the descend of so2 removal efficiency should be considered when we rebuild a marble scrubbing dust collector to a equipment of wet calcium fgd & dusting
因此,在將麻石水膜除塵器改造成旋流板塔脫硫除塵系統的過程中,增大葉片仰角的同時一定要考慮脫硫率的下降問題。Fluid flow and heat transfer characteristics in the leadingof blades at rotating state
旋轉狀態下渦輪葉片前緣的流動與換熱In order to investigate the distribution regularities of axial direction of emerging object, experimental research of paddy threshing and separation used axial flow threshing and separation installation designed by ourselves of screw vane with shutter tooth was carried on
摘要利用自行研製的螺旋葉片帶板齒式軸流脫粒與分離裝置,進行了水稻脫粒試驗研究,目的是研究脫出物沿滾筒軸向的分佈規律。Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages, outer diameters of the secondary swirl passages, vane angle of the primary and secondary swirler, the distance of the flare exit from throat etc ) on combustion performances are studied experimentally. the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes
在不同油氣比下,不同的雙級旋流器幾何參數(例如:一級與二級旋流器出口內徑d 、葉片安裝角、二級旋流器出口外徑d 、二級旋流器的喉道到出口截面的距離l和喉道前後的圓弧半徑r以及主燃孔孔布局等)對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物( co _ 2 、 co和nox )排放等燃燒性能的影響規律進行了研究。In this axial turbine, steam always flows along the axis of rotated axis, thus, all blades extend with the radiation shape along the axis outward
在這種軸流式渦輪機中,蒸汽總是沿主軸的旋轉軸流動的,因此,葉片由主軸向外呈輻射狀展開。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。The effects of blade elevation angle of rotating - stream - tray scrubber affecting process on the wet calcium fgd process was studied experimentally
摘要實驗研究了旋流塔板葉片仰角對鈣基濕法煙氣脫硫工藝的影響。With the phenomena of dropping flow, backflow and secondary flow effected by circulation and surface curvature, the centrifugal pump ' s inner flow is very complicated 3d flow. therefore, the centrifugal pump inner flow is one of the difficult problems both in testing research and numeric computation
離心泵葉輪的內部流動是很復雜的三維紊流流動,同時由於受旋轉和葉片表面曲率的影響還拌有脫流、迴流及二次流的現象,是流體工程中較難的試驗研究和數值計算問題之一。The low - frequency discrete noise of the propeller is induced by the interaction between blades of the propeller and wake of the marine, and the low - frequency broadband noise of the propeller is produced by the interaction of blades and turbulent field of the marine stern
螺旋槳的低頻離散譜噪聲是由船尾伴流場和葉片的相互作用引起的,而低頻寬帶噪聲是由船尾粘性湍流場和葉片的相互作用產生的。Prediction of noise induced by interaction between turbulent flow and propeller blades
船舶螺旋槳葉片與艉部湍流場互作用噪聲的預報研究Second, we development the influence of flamethrower shape, root air, the obliquity of spin vane and block heat board for the air current in the firebox by simulating them through two phases calculate
然後通過兩級計算的方法,分別對不同海拔高度、噴火筒形狀、根部風大小、旋流葉片的傾角以及有無回熱板時對燃燒室空氣氣流組織的影響進行模擬。Through simulated results, we can receive ideal flamethrower shape, root air, and the obliquity of spin vane so that plateau oil - fired warm air heater ignition easily, flame is stabilization and burn sufficiency
從而得出使高原燃油暖風機易點火、火焰穩定、燃燒充分的噴火筒形狀、根部風的大小以及旋流葉片的傾斜角度,為工程技術人員設計高原燃油暖風機提供一定的根據。Phenomena, such as flow field confusion and slagging etc. have occurred in the practical process of cyclone burner for coal - water slurry ( cws ) firing, on this basis a study on aerodynamic field of cws cyclone burners had been carried out through cold state experiments in the laboratory, then the influence of burner ' s structure properties upon the said flow field had been carried out, and expected to find more reasonable structure of the burner was found. in my study the focus is on the affection of cone and cyclone intensity in the condition of infinite and finite fields
本文著重研究現有水煤漿旋流燃燒器的旋流葉片角度,一次風擴口的長度以及角度對旋流燃燒器出口流場的影響,通過流場的比較,以期得到性能較好的旋流燃燒器。考慮到水煤漿燃燒器中心的水煤漿射流對于其空氣動力場的影響,本文在實驗室冷態實驗研究的基礎上,模擬水煤漿射流,研究其對燃燒器空氣動力場的影響。Calculation of unsteady flow for interaction between rotating impeller and vaned diffuser
旋轉葉輪和葉片擴壓器耦合的非定常流動計算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。For the dual register burner, while cat being applied, it simulates the influences of the flow field in the burner by changing the velocities of primary flow and inner / outer secondary flows, and by changing the opening percents of inner / outer vanes. eventually, the appropriate values for velocities and opening percents of vanes are recommended, to provide engineering problems with theoretical orientations
針對雙調風旋流燃燒器,本文運用計算機輔助試驗( cat )方法對一次風速度,內、外二次風的葉片開度及內、外二次風速度對燃燒器內流場的影響進行了數值試驗,得出了雙調風旋流燃燒器推薦使用的二次風葉片開度和速度值范圍,為工程應用提供了理論依據。分享友人