流體運動方程 的英文怎麼說
中文拼音 [liútǐyùndòngfāngchéng]
流體運動方程
英文
flow equation- 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...
- 體 : 體構詞成分。
- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
- 運動 : 運動[舊時用語] arrange things or get things done through pull
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In this article, physical equations and relative three - dimensional finite - difference formulae in cylindrical and spherical geometries were derived and two - and three - dimensional code in cylindrical and spherical geometries for direct - drive by laser was made, based on the lared - s code in planar geometry. it consisted of the processes such as the inverse bremsstrahlung absorption, electic heat conduction and fluid dynamics
本論文在lared - s程序平面版本基礎上,推導了三維柱和球幾何中激光驅動的物理方程和相應的差分方程,編制了二維和三維柱和球幾何中激光驅動流體不穩定性的lared - s程序版本,主要物理過程包括:激光逆軔致吸收、電子熱傳導和流體運動。Then fourier transformation is employed to solve equations of motion of the rings, bulkheads, stringers and fluid respectively, with their reactions ( moments ) expanded by the shell ' s in - vacuo modes. by means of continuity conditions on the interfaces between the shell and the stiffeners as well as the fluid, and inverse fourier transformation, the modal reactions ( moments ) are finally expressed by the shell ' s modal velocities
然後用fourier變換分別求解環肋、艙壁、縱骨和流場的運動方程,將它們對殼體的作用力(力矩)用殼體周向模態展開,利用它們與殼體在連接處位移連續條件以及fourier逆變換得到用殼體速度表示的模態相互作用力(力矩) 。By performing fourier transformation, the relationship between the turbulent intensity of the particle and that of the carrier fluid was obtained which makes clear that particle size, specific gravity, velocity gradient, and the characteristic frequency of energy - containing eddies are four basic influencing parameters. it is proven theoretically that under certain conditions, the stream - wise and transverse particle turbulent intensities exceed those of the carrier fluid. based on the equations of two - phase flow, the presence of fine sediment suspension is shown to attenuate the turbulent intensity of the water
通過對細小顆粒在剪切流場中運動方程的fourier分析,得到了顆粒脈動強度和流體脈動強度之間的定量關系,表明顆粒粒徑、顆粒密度、流速梯度以及紊動場含能旋渦的特徵頻率是影響顆粒脈動強度的主要因素,首次從理論上證明了在一定條件下,顆粒在縱、垂向的脈動強度均會超過相應的流體脈動強度,為已有的實測資料提供了合理的解釋。According to non - newtonian fluid mechanics theory and mathematical method, conbined with plunger moving property, the hypothesize fluid is imcompressive, hydraulic radius of flow of liquid in crevice is very little, and it is laminar flow, the flow is treated fixed continuous flow at every instant position of plunger, equation of motion and boundary condition were set up in condition of concentric and eccentric of pump barrel and plunger
運用非牛頓流體力學理論和數理方法,結合抽油泵柱塞運動特點,假設液體為不可壓縮的,液體在縫隙中流動的水力半徑很小,呈層流流動,柱塞在每一位置的瞬間,流動做定常流處理,建立了泵筒與柱塞同心和偏心兩種情況下運動方程和邊界條件,引入無量綱坐標、無量綱速度和柱塞與泵筒偏心配合時的縫隙高度,並給出縫隙流流速、流量的解析解。I decided to take some courses in fluid mechanicsthe study of how bodies behave as they move through air or water.
我決定選修流體力學方面的一些課程研究人體在空中和水中運動時的表現。Due to its complexity of the problem, the theories and experiment results obtained are discrepant, and some of them are even contrary one another. started from the influence by movement rules of small cavities and solid particles, the mechanisms of combined effect of cavitation and sand abrasion are study in this thesis from the aspect of the turbulent coherent structure near the wall. first, a dynamic equation is established for a single spherical bubble and single spherical sand under the non - turbulent coherent structure near the wall, and then a dynamic equation established under the turbulent coherent structure near the wall
首先從理論上推導出在典型湍流邊界層模式的非擬序結構下空泡與固體顆粒的近壁區運動方程,然後推導出湍流近壁擬序結構作用下的空泡與固體顆粒的近壁區運動方程,再將兩種不同條件下的的運動方程進行比較,指出湍流近壁區的擬序結構對空蝕與磨損的發生具有決定性的意義,即正是由於擬序猝發作用的存在,才使得空泡、沙粒對壁面的空蝕與磨損作用得以發生。In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable
閘后水流經過加糙的海漫段時,其水流狀態屬明渠紊流。流體中的各種物理參數,都隨時間與空間發生隨機的變化,很難用數學的方法對其運動過程進行精確計算和模擬。Let us summarize the governing equations for a fluid, previously deduced.
現在讓我們將上面推導出來的流體運動基本方程組歸並在一起。As is known to all, navier - stokes equations are fundamentally important in describing the motion for viscous incompressible fluids. for a long time, these equations have been deeply investigated by a lot of scientific workers, including many famous mathematicians
作為描述粘性不可壓縮流體運動規律的基本方程, navier - stokes方程長期以來得到包括許多著名數學家在內的眾多科學工作者的廣泛關注。For the purpose of simulating aerodynamically determined body motion, the governing equations of rigid body dynamics are coupled in the overall solution algorithm
本文還研究了剛體動力學方程與流動方程的耦合求解方法,用於模擬由氣動力決定的物體運動軌跡。The equations which are used in the radiation hydrodynamic model include the hydrodynamic equation of plasma, the absorption equation of laser, non - lte electron occupation probability equations, electron ion and photon energy equations ( three - temperature equations ), and the state equation of matter and so on
考慮的方程有:等離子體流體力學方程組,激光吸收方程,非局域熱動平衡電離下電子占據概率的速率方程組,電子離子的能量守恆方程組和光子的能量輸運方程(三溫方程組) ,關于元素不透明度的方程,以及描述物質狀態的方程等。In order to understand such a process in ying - qiong basin clearly to serve well for oil and gas exploration and development, in the paper, the expression of the thermal fluid flow in trace markers as seismic response, geochemical index and fluid inclusion is stated, thus tracing out the thermal fluid flow in ying - qiong basin ; and the paths and direction of hydrocarbon migration and accumulation in the dynamic balance between accumulation and dispersion are pointed out by use of various trace markers of the thermal fluid flow which is taken as hydrocarbon carrier
為了清楚地認識鶯一瓊盆地中的這一過程,更好地服務于油氣的勘探和開發,本文闡述了熱流體活動在地震響應、地化指標、流體包裹體等示蹤標志上的表現,進而追蹤鶯瓊盆地中的熱流體活動,並指出作為油氣載體的熱流體的各種示蹤標志,在油氣運聚動平衡過程中指示了油氣運聚發生的路徑和方向。Design procedure of u - shaped anti - rolling tank system is established, and program of scale design for tank is summarized, and an innovation selecting the natural frequency of controlled passive anti - rolling tank is put forward according to variation range of wave frequency, the natural frequency of rolling of a ship and other influencing factors, and causes of formation of tank damping and motion state of water in tank are studied, calculation formula of the u - tube tank damping and design method of tank damping configuration are given, and the influence of tank vertical location within the ship on ship parameters, stabilization performance of tank and water motion in tank is studied
建立了完整的u型減搖水艙系統設計程序;總結了u型減搖水艙尺度設計;提出了根據波浪頻率變化范圍、船舶固有頻率變化范圍和其它影響因素,選取可控被動式減搖水艙固有頻率的新方法;分析了u型減搖水艙阻尼的形成原因,給出了估算水艙阻尼和設計水艙阻尼結構的方法;研究了減搖水艙在船舶中的垂直位置布置對船舶參數、水艙減搖性能和艙內流體運動性能的影響。Logistics enterprise ' s six dimensionality of yielding ability and yielding ability ' s self - organization equation of motion were constituted. character of yielding ability ' s order parameter was analysed. at last of the chapter, evolvement and trend of logistics enterprise system ' s yielding ability were explored through analysis of yielding ability ' s potential function and non equilibrium phase transition
構建了企業的六大業務收入能力維度,建立物流企業獲利能力的自組織運動方程,對物流企業系統整體結構不穩定性和獲利能力序參量特徵進行了分析,最後從對物流企業獲利能力的「勢」分析和非平衡相變現象的描述中探索物流企業系統的演變和走勢。The submarine structure is simplified to single or double infinite cylindrical shell stiffened with rings, bulkheads and stringers, focusing on underwater sound radiation from the single shell. the shell motion is described by donnell ' s theory including excitation forces and reactions of rings, bulkheads, stringers and fluid, which leads to the fluid - structure coupling vibration equation. expressing displacements by velocities, applying modal expansion circumferentially and fourier transformation longitudinally result in the shell ' s modal equations of motion
殼體的運動方程採用較為簡單的donnell理論描述,運動方程中包括了激勵力、加筋結構(環肋、艙壁和縱骨)和流場對殼體的作用力,從而組成流場-結構的耦合振動方程,並進一步將方程中的位移用速度表示,然後沿軸線方向進行fourier變換,將速度和各項荷載沿圓周方向進行模態展開,得到了殼體振動的模態運動方程。Then the general plan of underwater vibrators is put forward. in chapter 3, combining fluid - solid coupling theory and mechanical vibration theory, we get the coupling equation of moving parts and water. the dynamic characteristics of moving parts are studied with theory of finite element, and additional mass of moving parts is found in fluid - solid coupling field, which makes vibrator ' s natural frequency descend and amplitude - frequency curve downward shift
第三章運用流固耦合理論和機械振動學理論相結合的方法建立運動部件與水的耦合運動方程,利用有限元法對其的動態特性進行了研究,得到了在流固耦合場下運動部件存在的附加質量,該附加質量導致固有頻率下降,單位推力下的加速度頻響曲線整體下移。These landslides go with fluidization peculiarity different degree in course of their motion, and their speed and distance increase several times because of the fiuidization, thereby the disaster area greatly broaden. on the base of above, the paper studies systematically the fluidization of large high - speed rockslides in all its aspects : analyzed the aerodynamic effect in the short - range on the base of the wind turmel experiment, studied the effect of falling into pieces when landslides collides mountain ; studied the accelerating effect through high - speed collide experiment of landslides model ; and the paper reappear the overall process including set - out, collide in the short range, debris flow in the long - range of touzhai large landslide via distinct element method ( dem ), studied the flow law and equation of different type of debris flow resulted from large landslide. as a sample to apply, the paper analyzed fluidization mechanism of touzhai landslide
基於這一點,本文對大型高速巖質滑坡的流體化現象進行了全面而系統的研究:通過風洞模型實驗,研究了大型高速滑坡凌空飛行階段的空氣動力學效應,研究了飛行中滑坡巖體在與途中不動山體發塵碰撞時的解體破碎效應,通過滑坡巖體高速碰撞模型實驗研究了滑坡巖體解體破碎後部分巖體的加速運動效應,並應用離散單元法再現了雲南頭寨溝大型滑坡啟動高速、近程碰撞、遠程碎屑流運動的全過程,研究了巖體解體破碎后形成不同類型碎屑流的運動規律及運動方程,並對頭寨滑坡流體化運動機理進行了實例分析,取得了以下主要結論和成果: ( 1 )對于大型高速滑坡,大多在啟程活動階段已獲得了高速,這使得這類滑坡在其離開剪出口之後以凌空飛行的形式向前運動,在其飛行過程中,滑坡巖體與空氣強烈作用,並產生空氣動力學效應,滑坡巖體在因碰撞而產生的解體破碎效應及部分巖體的加速運動效應的作用下,在遠程活動階段,以高速碎屑流的形式向前運動。Base on the kinematics relation of ctp, the corresponding reynolds equation or average reynolds equation, fluid film thickness equation under qusi - stable state in polar coordinates, balance equations of load and moments under full - film contact and partial - film contact states were set up respectively. these model equations were calculated by the finite difference method, and the instantaneous 3 - d distribution of fluid pressure and the slurry film was simulated by the matlab software
根據ctp的運動關系,分別建立了極坐標下,全膜接觸工況時的非穩態牛頓流體在ctp過程中的一般reynolds方程、流體膜厚方程、載荷平衡方程和轉矩平衡方程,以及部分膜接觸工況下的平均reynolds方程、平均膜厚方程、接觸壓力方程、總載荷平衡方程和總轉矩平衡方程。For the case of dynamically loaded er journal bearings, the effects of er fluids on the lubrication performance are numerically studied by simultaneously solving the reynolds equation and the journal motion equation
對于動載電流變滑動軸承的潤滑問題,聯立求解了基於電流變流體模型的動載雷諾方程和軸頸運動方程,分析了電流變效應對動載軸承潤滑性能的影響。In this paper, according to the fluid dynamic theory, mathematical model of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines is given, based on the continuity equation and motion equation. the mathematical models of friction item, the growing and collapsing of gas bubbles and cavitation are also introduced
本文通過流體力學分析方法,在連續性方程和運動方程基礎上,建立了低壓液壓管路中伴隨氣泡和氣穴產生的瞬態壓力脈動數學模型,給出了動態摩擦力數學模型及氣泡和氣穴產生及破滅數學模型。分享友人