排氣阻力 的英文怎麼說
中文拼音 [bèiqìzǔlì]
排氣阻力
英文
exhaust resistance- 排 : 排構詞成分。
- 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...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 排氣 : [機械工程] exhaust; aerofluxus; air out; exit gas; ventilate; atmosphere; vent排氣泵 exhaust pump...
- 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
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Research on confluent local resistance of multi - power sources in the exhaust system for residential kitchen
住宅廚房排煙氣系統多動力源合流局部阻力研究Pomegranate contains rich organic acids, vitamins c & b, proteins, calcium, phosphorus, potassium and other mineral substances, can deliver a large amount of oxygen to the basal layer of skin tissues, help regulate the skin grease secretion, improve the cell respiration, skin resistance and detoxifying capability, remove skin toxins that block up pores, shrink flared pores, leave pores pure again, present the skin with perfectly smooth touch, bright tone and natural, youthful brilliance
石榴中蘊含的豐富有機酸、維生素c & b ,蛋白質及鈣、磷、鉀等礦物質,能將大量氧氣帶到皮膚組織底層,幫助肌膚調節油脂分泌,煥發細胞呼吸,提升皮膚抵抗力及排毒功能,排清阻塞毛孔的皮膚毒素,收細粗大毛孔,讓毛孔回復純凈無污染狀態,肌膚觸感完美順滑且膚色明亮,展現自然青春光彩。It can be used not only to change the fire precision of the base bleed projectile, but also to improve the effect of reduction drag and expansion range. the calculating model of the secondary expansive pressure of the burning gas is constructed by means of analysis of the experimental resuits, it has been confirmed that the new base bleed unit can be designed, with the secondary expansive principle of the burning gas pressure. the engineering project of a hybrid base - bleed - rocket high - level efficient extended - range projectile is designed, with the secondary expansive principle of the burning gas pressure, the feasibility and the true worth of its engineering applications is validated in theory
本文提出了底排燃氣壓力不隨外部壓力變化,既可改善底部彈射擊精度又可提高減阻效果的二次擴張原理,建立了底排燃氣二次擴張壓力的計算模型,並通過採用二次擴張原理的新型底排裝置與傳統底排裝置的對比試驗,驗證了新型底排裝置結構實現的可行性;完成了基於底排燃氣二次擴張高效增程原理的底排?火箭復合高效增程彈方案設計及其有關計算,從理論上驗證了其工程應用的可行性和實際價值。After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定,確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒,增設煙氣含氧量分析,可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤氣量6 %以上。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和阻力因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。Results show that all the geometric parameters have remarkable effects on combustion performance ; the swirl of intake air generated by skew intake holes enhances fuel - air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust ; the consistency of flow resistance in intake and exhaust system is conducive to the stability of heater performance
研究表明,燃燒室進氣孔的孔徑、孔數、孔的分佈及方向等均對燃燒性能影響很大;斜孔所產生的旋轉進氣,雖具有強化燃氣混合、消除死區和迴流穩焰的作用,但迴流過度會使燃燒室及排溫過高;保證進排氣系統流動阻力(壓力)的一致性,有助於保證加熱器性能穩定。It heals and soothes while you sleep, in case of trouble in breaking wind, assists nature in the most formidable way, insuring instant relief in discharge of gases, keeping parts clean and free natural action, an initial outlay of 7 6 making anew man of you and life worth living
放屁有困難的時候,本品能在您的睡眠中起到鎮定治療作用。在自然機能的促進方面發揮絕大威力,使您借著放出沆瀣之氣立即解除痛苦,確保局部的清潔與排泄機能暢通無阻。In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction
在研究過程中,採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷,具體結果包括如下: ( 1 )完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試,結果發現:鉛塔燃燒室內水平方向的煙氣溫度並非均勻,而且其溫差比上下方向的溫差更大,以及鉛塔燃燒室尾部存在co未燃燼問題; ( 2 )為了保證鉛塔煙氣系統的正常工作,對煙道系統的阻力進行了理論計算及測試分析,結果發現:鋅精餾鉛塔煙氣系統中煙囪抽力不夠,這主要是煙道結構不合理所造成的。This research is to eject some compressed air into the dredging pipe to get tri - phase flow in the pipeline, and research the change about the pipe resistance, at the same time, obtain the more effect adding gas method and realize reduction friction and prolong the dredging distance
本文研究的目的是在一定的漿體流速和漿體濃度下向輸送管道中加入一定量的氣體,在管道中形成三相流,進而探討加氣后管道流動的變化規律,同時確定出比較有效的加氣方案,從而實現減少阻力延長排距的目的。Over the years, lrt technology has been upgraded to counter the negative effects of traffic jams, noise, environmental damage, air pollution, etc. featuring a small radius of curvature, multiple car units, modulated train set, enlarged cars both in transverse and longitudinal directions, low car floors, streamlined car design, advanced control systems, and flexible right of way, modern lrt systems have been successfully adopted to most environmental and social needs. they adequately display their merits as transportation systems ; i. e., the lrt system is able to co - exist with automobiles. the low car floor means that roads can act as station facilities, and passengers can get on and off the cars in the street
輕軌運輸系統lrt源起於歐洲街道電車street car ,街道電車一度在都市捷運化與私人機動化的浪潮沖擊下迅速沒落,但隨著都會地區機動車輛不斷增加,道路交通阻塞噪音環境破壞排放廢氣污染問題嚴重惡化之際,輕軌車輛技術已不斷提升,具備小轉彎半徑能力的聯結式車廂模組化列車編組車廂斷面長度加大加長低地板車廂流線型車廂設計,搭配先進控制系統及彈性的路權型式,使現代化輕軌系統具備有與生活空間結合重視環境問題與社會情勢並活用進化街車之都市交通工具等特徵與優點,如高性能輕軌列車與汽車共存,低底盤的車廂創造無障礙車站空間,道路即是車站設備,旅客可以在街區上下車,提供沿線居民高度的便利性,消除交通堵塞噪音及空氣污染等,輕軌系統並與街景充分的調和,成為活動的都市意象。The experiment model that scale is 1 to 2. 5 was made. model experiment results show that numerical simulation scheme has gratifying precision and is very effective for forecast of resistance characteristics of marine exhaust mufflers
按照所確定的結構製作了幾何比為1 : 2 . 5的實驗模型,模型實驗結果表明,本文的數值模擬方案具有令人滿意的精度,對于船用排氣消聲器阻力特性預估是非常有效的。Both investigation results pointed to the dry floor drain traps in the bathrooms of individual apartments which had provided an open connection to the soil stack through which contaminated droplets were drawn into the bathrooms when the exhaust fans were turned on. the droplets could have been drawn into the light - well by the powerful exhaust fans and re - entered into other apartments by natural currents through open windows
兩個調查結果均顯示,由於個別單位浴室的連接地面排水口的聚水器乾涸,排水口與排污渠變得毫無阻隔,當強力的抽氣扇啟動時,帶病毒的液滴可能從地臺排水口倒流入浴室,這些液滴有可能被抽至天井,並經由打開的?戶隨著氣流飄進其他單位。For region of high resistance, the structure of inside of the archetype of exhaust muffler was adjusted with multi - scheme, but the shape was kept. according to the characteristics of the flow fields, unreasonable structures have been improved to obtain the exhaust muffler with the better performance. the pressure loss of remodelled exhaust muffler was decreased by 27 % as compared with that of original one
在對原有型式排氣消聲器流場數值模擬結果進行分析后,以消聲器外形結構尺寸保持不變為原則,對其內部局部阻力大的部位進行了多方案的結構調整,確定了排氣消聲器的改進結構,從而得到氣動性能較好的排氣消聲器。分享友人