有旋流動 的英文怎麼說

中文拼音 [yǒuxuánliúdòng]
有旋流動 英文
rotational 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
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 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
  1. The integral equations governing the three - dimensional viscous flow inside the turbo - machinery in the rotating coordinate system are presented in this paper, the viscous effects are simulated by the distributed body force described by professor denton j. d. the time - marching method and explicit finite volume difference scheme are employed to solve the flow inside the turbo - machinery

    本文給出了相對旋轉坐標系下葉輪機械內部三維粘性流動的守恆型積分型方程組，利用dentonj . d .教授的粘性體積力法來模擬粘性對葉輪機械內部流動的影響，採用時間推進法和有限體積差分格式對葉輪機械內部的流動進行求解。
  2. The cyclones with short cone are used for crude grading of minerals with heavier specific gravity in gold mines, sand gold mir. es and sulphur ore mines and have such advantages as small ground occupation, high capacity, high operating flexibility, low energy consumption and high movability etc

    短錐分選旋流器用於金礦、砂金礦、硫化礦等比重較大的礦物的粗選作業，具有佔地面積小，處理能力大，操作彈性大，能耗低，可移動性強等優點。
  3. The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation

    高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。
  4. The results indicate that : the high positioned air inflow do good to heat transfer in rotator disk ; different size of radial outflow have small effects on flow and heat transfer ; the heat transfer near rotating disk increases as rotating reynold number increases or non - dimensional mass flow rate increases

    結果表明，高位軸向進氣對轉盤換熱有利；不同的徑向出口大小對盤腔內的流動換熱影響不大；隨旋轉雷諾數和無量綱質量流量增加，轉盤盤面的換熱效果增強。
  5. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  6. The shm ( single hole microblowing ) as a new perturbation active control technique has been applied to the slender body with different model noses at zero sideslip and high angle of attack

    摘要在亞臨界流動范圍內，對具有不同頭部形狀的尖拱形細長旋成體在無側滑大迎角下進行單孔位微吹氣擾動控制實驗。
  7. The lateral jets are caused to incline to the direction of rotating free flow and to weaken the effect upon base flow. furthermore, the spinning effect upon lateral jet is much stronger than that upon base bleed

    與無旋轉情況對比表明，旋轉對彈丸側噴流以及底部流動均有影響，高速旋轉導致側噴射流向旋轉來流方向傾斜，並減弱其對彈底流動的引射。
  8. The instrument is supported by a test fixture with cold - wall thermal radiators. copper coils attached to the radiators circulate liquid and gaseous nitrogen to vary the instrument temperature

    感覺這個變溫設備就像平常的暖氣片一樣，不過螺旋管中流動的是液態或者氣態的氮。它還配備有變溫和控溫裝置。
  9. The quasi - geostrophic process was diagnosed for a case of severe cold air breakout under the blocking situation during 16 - 18 march of 1998. the attention was focused on the relationship between the surface anticyclone and 500hpa blocking high. the results indicate that the cold outbreak is associated with the adjustment of blocking situation in the ural area, i. e. the collapsing and rebuilding of the ural mountain blocking high. the temperature advections in the lower troposphere shown that the polar cold air invading from the northwest caused the ural blocking high collapsed, and a new ridge developed rapidly was due to the warm advection on the southwestern side which led to the ural blocking high rebuilt. in addition, the distribution of the vertical motion on 700hpa shown that the surface high splitting was related to the considerable upward motion located on the southeastern part of surface high

    對1998年3月中旬一次高空阻塞形勢下強冷空氣過程進行了診斷分析，著重討論強冷空氣爆發前後地面反氣旋活動與高空阻塞形勢調整的關系。研究結果表明，強冷空氣的爆發與烏拉爾地區阻塞形勢的調整阻塞高壓的崩潰和重建緊密相關。對流層下部的溫度平流分析表明，阻塞形勢的調整是由於阻塞高壓上游西北方有冷空氣侵入導致了阻塞高壓的崩潰，而上游來自西南方向的強暖流則導致高壓脊迅速發展，使阻塞高壓重新建立。
  10. 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。
  11. Chiu and seman(1971)studied the head loss of flows transporting sediment in circular and square pipes with spiraling motion.

    邱和思門（1971）研究了在圓管和方形管中輸沙時具有螺旋運動的水流的水頭損失問題。
  12. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  13. With the popularity of rotary machinery in industry, the characteristics of the flow in the controlling pipe system, the transporting pipe system, and the cooling pipe system are the main factors to improve the efficiencies of the rotary machinery, consequently, fluid flow in rotating pipes has become one of the urgent problems in engineering and one of the challenging research fields in fluid mechanics

    隨著旋轉性機械在工業中的廣泛應用，其中的控制管路系統、輸送管路系統、冷卻管路系統的流動性質是提高這些機械性能的重要因素，因此這些管路系統中流體運動的特點成為工業應用中迫切需要解決的問題，也成為流體力學中最有前途的研究領域之一。
  14. Although the knowledge of wind effects on tall buildings has significantly improved over the last decades, an understanding of the mechanism that the atmospheric flow field to various wind include effects on structures has not been developed sufficiently for formulation of functional expressions. not only is the wind approaching a building complex, but the flow pattern generated around a building is complicated by the distortion of the mean flow field, the flow separation, the vortex formation, and the wake development

    在過去的幾十年裡，雖然人們對高層建築風效應的了解已有顯著提高，但對大氣流場與結構物各種風致響應的關系還不能用解析表達式加以描述。由於平均流場的奇變、流動分離、旋渦形成以及紊流的發展，不僅使得流向建築物的風，而且使得繞建築物的流譜變得十分復雜。
  15. Based on detailed analyze on turbine engine and ramjet, a new conceptive internal - rotor burnt rotating ramjet ( irbrr ) with an rotating cylinder in the center of rotor in which the revolved stream can be ram - compressed and burnt has been proposed and some primary research have been done as below : the scheme of structure, principles, thermodynamic cycle and performances of the new conceptive engine has been studied in the paper

    本文通過對燃氣渦輪發動機和航空沖壓發動機的原理結構進行詳細分析並進行融合創新，提出了一種利用內置旋轉汽缸進行旋轉氣流沖壓壓縮和旋流燃燒的新概念內置燃燒室旋轉沖壓發動機，並進行了一些前期的基礎性探索研究，具體研究內容有:對旋轉沖壓發動機進行了總體方案設計、工作原理分析、氣動熱力循環和性能分析等概念性研究。
  16. In this dissertation, researches on the flow in curved pipes of the last century are firstly reviewed and then a flow model in a rotating helical pipe with multi - parameters is introduced

    本文首先綜述了一個世紀以來有關曲線管道流動的研究成果，並在前人文獻的基礎上，提出一種多參數旋轉螺旋管道流動模型。
  17. The horizontal swirling flow internal dissipater tunnel being built in gongboxia power station will be the first one reconstructed from a diversion tunnel whose discharge reaches to 1000m vs and water head is more than 100m in china. its scheme ' s argumentation, test research and future apply will have important meanings to the design. research and engineering application of internal dissipation discharge tunnel with swirling flow, will powerfully promote engineering application of this new kind of dissipation mode, which may solve some high velocity problems in high dam construction and provide a engineering example for technological and economical augmentation in a diversion tunnel reconstruction. it is of theoretical and practical importance to promote hydraulic structure researches and development

    公伯峽水電站右岸旋流內消能泄洪洞是國內第一個泄量達1000m s 、水頭超過100m ，即將修建的旋流式內消能泄洪洞，其方案的論證與試驗研究以及建成后投入使用，將在國內外旋流式內消能泄洪洞設計、研究與工程應用中具有重要的意義，將有力的推動這一新的消能形式在工程中的應用，從而為解決高壩建設中泄水建築物的高速水流問題與導流洞改建的技術與經濟問題提供工程實例，對推動與發展水工水力學的研究與發展均具有重要的理論與實踐意義。
  18. Fisrt, the flow field of radial and tangential annulus with rotating flow are made by using an advanced piv system, its flow field characteristics are obtained preliminary probed. it is found that the flow field characteristics are not the same between unpermeateing flow and have permeateing flow, otherwise the flow field is compared between rotating flow and dynamic tubular membrane

    首先通過採用先進的piv測試系統，對旋轉流膜器的徑向環隙和切向環隙處的流場進行了實測，初步探討了其流場特性，發現在無滲透流和有滲透流的情況下其流場並不相同，並與旋轉動態膜的分離特性進行了比較。
  19. But when the swirl number is high, we have to resort to rsm, because of the obvious differences between experimental and numerical results by the models based on " effective viscosity "

    但是，在強旋流動中，基於「有效粘性」的各個模型的計算結果和實驗相差很遠，只有採用雷諾應力模型才能得到較為滿意的結果。
  20. If applied experiential formula mechanically to calculate the dynamic moment of the tri - eccentric butterfly vavle, its errors for the results would be larger. the paper, by virtue of the postulate of flow with fixed constant, eddiless of ideal liquid, calculated laplace equation by finite difference method in rectangular coordinates, gained pressure distribution on the butterfly disc section, thereby figured out its dynamic moment under each opening angle and the method was feasible for calculating dynamic moment of symmetry or not, designed the program and described the curve of dynamic moment. finally, the paper infered their laws

    採用經驗公式來計算三偏心蝶閥的動水力矩，誤差比較大，本文根據三偏心蝶閥的結構特點，利用理想流體的定常、無旋流動的假定，用有限差分法在直角坐標系中求解拉普拉斯方程，得到蝶板截面上的壓力分佈，從而計算出蝶板在各個開度下的動水力矩，設計出了求解的程序，給出了程序運行的結果並進行了數據處理從而得到了動水力矩曲線，總結了它的變化規律。
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