有阻力流 的英文怎麼說
中文拼音 [yǒuzǔlìliú]
有阻力流
英文
drag flow- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 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...
- 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...
- 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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Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing
文摘:應用計算機模擬的方法,在不考慮燃燒的冷態情況下,研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上,比較了2種不同設計方案的氣流流動特徵,尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明,阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用,同時也增加了空氣管道的阻力損失,在同樣的工況條件下需要提高管道系統的總壓力Some researchers have made study on this subject, such as the generation and evolution of frazil ice, shore ice, bottom ice, ice cover and ice jam, the resistance of freeze - up river, flow capacity and variation of water stage
國內外一些學者通過原型觀測,試驗和數值模擬的方法對水內冰,岸冰,底冰,冰蓋和冰塞的生成和演變,封凍河道的阻力、過流能力和水位變化等有關問題進行了研究。The second part analyses the resistance during the reform program which mainly arising from the following aspectsrthe ideological obstacle on the reformation ; the difficulties on the function transition of the local govemment ; the inconvertible vested interest of the local government ; the legal system of administrative organizations is not in perfect condition ; lack of authorized restrictive mechanism ; the limit maneuver of people diversion ; social welfare system reform and other auxiliary reforms are backward
第二部分分析了市縣鄉政府機構改革的阻力。即在市縣鄉政府機構改革問題上存在著思想障礙;職能轉換難;部門利益化的阻礙;行政組織法制不健全,缺乏權威有效的制約機制;人員分流的迴旋餘地小;社會保障制度改革和其它配套改革滯后等。By introducing the resistance equations of sand wave by others, the total resistance can be computed
在引入沙波阻力的有關計算公式后,即可將以上幾種阻力單元疊加計算河流總阻力。The products inside sleek, not sense, the transmission fluid resistance small, can increase the flow and excellent chemical stability, health, drug - free
該產品內壁光滑,不積垢,輸送流體阻力小,可以增加流量,同時具有優良的化學穩定性,衛生、無毒。The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables
( 3 )進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究,以及有升力約束情形下機翼跨音速減阻問題研究,分別推導了相應的共軛方程及邊界條件數學表達形式,研究與發展了三維共軛方程的有限體積數值求解方法,及相應梯度公式的數值求解方法,通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合,成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序,成功地進行了多個設計算例研究。The article elaborates the construction and principle of operation and process craft of the tube and corrugated fin rad i ator, and studies the heat transfer mechani sm and the fluid resistance characteristics of the tube and corrugated fin radiator
本文闡述了管帶式散熱器的結構、工作原理和加工工藝;研究了管帶式散熱器的傳熱及流動阻力特性;進行了散熱器性能強化的影響因素與有效途徑分析。Accord i ng the heat transfer mechanism and the fluid resistance of the tube and corrugated fin radiator, i apply the computer to compile program to check up and design radiator, which makes the research theory can be d i rect i y app i i ed to manufacture process
並依據散熱器的傳熱機理及流動阻力特性,運用計算機編程,組建了有關散熱器校核、設計熱計算的程序軟體,使理論研究結果能直接應用於生產實際。3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant
對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等;改進了水冷壁布置使換熱效果更好,減少輻射換熱損失;改進對流段結構,更充分的利用爐膛出口煙氣余熱,提高熱效率;並且進行了煙氣阻力計算、熱效率計算和能量平衡測試,對改進后的稠油燃料和改進前進行了對比,燃燒狀況和熱效率有明顯改善。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。Global top grade aerobics fitness equipments + whole body muscle group resistance training + global popular aerobics exercise course + yoga training attested by international master + standard professional coach service = sports change your life
世界頂級有氧健身設備全身肌群阻力訓練世界流行有氧操課國際大師認證瑜伽訓練標準專業教練服務運動改變您的生活。New ) move the body into a straight line to reduce drag and increase core power
剛體流線減少阻力,增加核心動力與游進中的有張有馳也非針尖對麥芒吧?This is a radial groove design which is suitable for industrial vehicles and features excellent stability and low rolling resistance
縱向槽溝花紋,用於工業車輛。有良好的行駛穩定性和較低的流動阻力。The secondary air duct of boilers is a group of large diameter short ducts in parallel connection, having inlet air flow condition with inner positioned resistant pieces
摘要鍋爐二次風道為有內置阻力件的一組並聯大口徑短通道,其阻力系數嚴重偏小而且風門渦流強烈,從而造成二次風強烈脈動。All kinds of resisting moment effects upon pump start - up process are fully considered and the different operational results of outlet gate with little flap valve are also reviewed
在計算過程中,比較完整地考慮了各種阻力矩對起動過程的影響,同時重點考察了平直管出水流道,具有快速閘門帶小拍門斷流裝置形式的起動效果。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。For the case of transporting suspended fine sand, a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations. the computed agrees well with the measured. and for the case of transporting medium - sized sand, a two - layer model is used and the model produces a good agreement with the experiment data
對管道輸送細沙懸移質的流場,採用單流體模型進行數值求解n - s方程,計算結果與實驗資料相吻合;對具有分層流動的中沙管道水力輸送,採用兩層代數模型進廳了計算分析,阻力損失的預測結果與實驗吻合較好;最後對管道輸送粗沙的阻力特性和運動機理進行了分析探索,提出了進一步研究的方向。Character : it is interweaved by high - quality terylene vole and terlene silk. inner lining is pvc material, which has a low price, and good character of aging proof, water proof, low resistance, quick pulling. soft convenient and long using life, etc, it is a new product, which can take the place of rubber inner lining in some fields
特點:採用優質滌綸紗和高強滌(丙)綸絲為原料,經平紋織機環編交織而成,內襯優質pvc材料,物美價廉,具有耐壓,不滲水,水流阻力小,出水快,特別輕便柔軟,使用壽命長等特點,是一種新型產品,在部分領域可代替橡膠襯里水帶。The local current disturbance after bridge being built in qiantang estuary leads to correspond changes of riverbed near bridge. but there is not any impact on astronomical tide, runoff large - scaled river shape and riverbed after bridge being built. so it does n ' t change the formation of tidal bore at all after bridge being built, but there is some impact on the shape and intensity of tidal bore because of pier resistance
在錢塘江河口建橋將引起局部水流的擾動及近區河床的相應變化,但不會對天文潮、徑流及大范圍河勢、河床產生影響,因而,建橋不會從根本上改變涌潮的產生,但橋墩阻力對涌潮形態和強度是有影響的。As a new type of energy - saving equipment, the tubular heat exchanger with longitudinal flow of the shellside fluid ( thelfsf ) has many remarkable advantages. it betters anti - vibration and anti - smudge performance, enhances heat transfer efficiency, and decreases the shellside pressure loss. it also prolongs service lifetime, reduces the weight and saves material
新型縱流殼程換熱設備作為一種新一代節能降耗設備,具有優良的防流體誘導振動性能、傳熱性能好、傳熱效率高、流體流動阻力小、抗結垢能力強、重量輕等優點,是鄭州大學「熱能工程研究中心」專利產品,為了加快該設備的推廣, 「中心」研發了hecad軟體系統,實現了新型換熱設備工藝設計、機械設計、零部件,圖及總裝圖繪制一體的cad軟體化。分享友人