流體動力升力 的英文怎麼說

中文拼音 [liútǐdònglìshēnglì]
流體動力升力 英文
hydrodynamic lift
  • 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。
  • 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...
  • 升 : Ⅰ動詞1 （由低往高移動） rise; hoist; go up; ascend 2 （等級提高） promote Ⅱ量詞1 （容量單位） lit...
  • 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
  1. In the core, coriolis forces deflect the upwelling fluid along corkscrewlike, or helical, paths, as though it were following the spiraling wire of a loose spring

    在地核中，科氏力使涌升的流體沿著像開酒瓶器的螺旋路線上升，彷佛順著彈簧的螺旋線圈移動。
  2. On the side the hydrostatic forces that cause a floating body to " rise " will be less

    身體在一側將會使「升起」一個浮動身體的流體力學的力量減弱。
  3. Hydrodynamics in an air - lift loop reactor

    氣升式環流反應器的流體動力學模型
  4. The hydrodynamic parameters and mass transfer coefficient are studied in the internal loop airlift bioreactor used in treating wastewater. the hydrodynamic parameters consist of gas holdup, liquid velocity and axial dispersion coefficient

    本文從流體動力學和傳質動力學兩個方面考察了用氣升式內環流生物反應器應用於廢水處理的性能。
  5. 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。
  6. Results the number of myocardial and brain and opioid receptors significantly increased, and they were significantly associated with the decreased hemodynamic parameters such as mean arterial pressure ( map ), left intraventricular systolic pressure ( lvsp ), the maximal rate of the change of intraventricular pressure ( dp / dtmax ) and the area of p - dp / dt vector loop ( lo )

    結果創傷失血性休克后，大鼠心臟和腦和阿片受體數目明顯升高，親和力無明顯變化，心臟和腦的和阿片受體數目升高與創傷失血性休克后大鼠血流動力學指標下降呈顯著負相關。
  7. Firstly, based on the present research all over the world, a 3d quasi - single phase model is built together with k - equations. the special feature of this model is taking account of the influence of interaction between liquid and gas, that is to say, the influence of interphase drag force, lifting force perpendicular to the relative velocity, virtual mass force and gas or liquid volume fraction in the fluid field have been considered. a 3d two - fluid model is also built in order to describe more accurately the fluid flow on distillation trays by comparing the computational results of quasi - single phase mathematical model with of two - fluid mathematical model

    本文在國內外已有的研究基礎上，首先建立了以k - （封閉模型為基礎的三維擬單相流模型，該模型的特點在於充分考慮了氣液兩相間相互作用的影響，即計入了相間曳力、橫向升力、虛擬質量力和氣、液相含率對流場的影響；並建立了塔板三維雙流體模型，主要目的是通過對比擬單相流數學模型、雙流體數學模型的計算結果，建立能夠準確描述塔板上流體流動的數學模型。
  8. The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given

    其次在流動無粘性、不可壓及考慮葉片厚度的條件下，依據葉輪內的流動特性，推導了葉輪內三維流動周向平均流動控制方程以及葉片方程；在貼體坐標系中，採用有限差分法求解流動方程和葉片方程；在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下，迭代求解流動控制方程及葉片方程，實現了軸流泵葉輪的準三維方法設計。
  9. Topics include the principles of conservation of mass, momentum and energy ; hydrostatic behavior of floating and submerged bodies ; lift and drag forces ; dimensional anaylsis ; wave forces on ships and offshore platforms ; laminar and turbulent flows

    主題涵蓋質量守恆、動量守恆及能量守恆等原理、浮體及沈體之流體靜力行為、升力、拖曳力、因次分析、船舶及離岸平臺上作用的波力、層流及紊流。
  10. Numerical results show that the bubble concentration distribution can be predicted by using the two - way coupling of the fluid and the bubble motion, and adding the wall lift force into the bubble motion equation, and the fluid velocity, turbulence intensity and shear stresses modified by the bubble motions can also be revealed

    數值模擬結果表明，通過加入壁面升力和採用雙向耦合方法，可以較準確地預測氣泡濃度分佈和揭示氣泡流動對流體湍流結構的影響。
  11. 3, carry out detailed numerical simulation and analysis for heat extraction of deep - seated hdr based on the tengcong prefecture, reach the major variety rule of rock mass stress, temperature, fracture width depending on the heat extraction. ( 1 ) in the hot dry rock geotherraal energy extraction system, transportation of energy and flow of water arise mainly through the fracture, the lower temperature water attain the high temperature from the injection well to production well through conduction convection and take away the thermal from wall rock

    3 、認真地對騰沖高溫巖體地熱開發進行了數值模擬計算和分析，得出了地熱開發過程中巖體應力、溫度以及裂縫寬度隨地熱提取的變化規律等重要結論： （ 1 ）在高溫巖體地熱開發系統中，能量的運移、輸送與水的流動主要通過裂縫面發生，注入的低溫水在流到生產井的過程中，發生傳導、對流、吸收圍巖熱量，達到升溫的目的。
  12. Based on the mechanism of slipstream interaction, described in this thesis is firstly the interaction of the propeller slipstream with the wing 、 fuselage and horizontal tail. subsequently, the changes in lift 、 drag and pitching moment are derived, giving an engineering model for the prediction of the increments in the aerodynamic characteristics caused by the interference between the propeller slipstream and the other parts of aircraft. this method offers a powerful means to the calculation of the aerodynamic interaction between the propeller and the aircraft, providing reliable data for the design of and aerodynamic calculation on propeller - powered aircraft

    本文以滑流干擾的機理為出發點，研究了螺旋槳滑流與飛機機翼、機身、平尾組合體之間的相互影響，推導出滑流引起的飛機升力、阻力和俯仰力矩的變化，給出了滑流干擾對機體氣動特性影響的工程估算方法，為研究螺旋槳與飛機部件之間的相互干擾提供了有力的工具，為以螺旋槳發動機為動力的飛機的設計和氣動計算提供可靠的依據。
  13. The results are compared with the cases in a single - layer fluid, showing that the density stratification can have a relative large effect on the drag and lift coefficients as well as the vortex shedding

    計算受迫振蕩圓柱體的升力系數、阻力系數隨時間的演化曲線和圓柱體的尾渦分佈，以及圓柱體的受迫振蕩激發兩層流體內界面的擾動，並與均勻流體的情況進行了比較分析。
  14. Since stop - check valves have a floating disc member, it is important the valve be sized to provide full disc lift under flow conditions prevailing during the major portion of the service life

    由於截止止回閥具有一個浮動閥瓣構件，因此重要的是要確定在平常的流體環境下及閥門的使用壽命期限內，能夠為閥瓣提供足夠提升力的通徑。
  15. Abstract : the paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force

    文摘:介紹了一種利用檢測漩渦頻率和橫向變動升力的方法測量氣體質量流量的漩渦式氣體質量流量計。
  16. In this thesis, finite volume method and dual - time stepping method are employed to solve the 3 - d unsteady euler equations. the unsteady flow field around a finite - span flapping wing is simulated. the lift and thrust of the flapping wing for different cases are calculated

    本文運用有限體積法結合雙時間推進技術求解三維非定常歐拉方程，模擬了有限翼展機翼在同時具有上下拍動和俯仰運動狀態下的非定常流場，計算了不同狀態下撲翼的升力及推力，分析了各個影響因素對撲翼氣動特性的影響。
  17. Combining cfd technology and aeroacoustic theory in time domain, the high - speed impulsive ( hsi ) noise of helicopter rotor in hover and in forward flight was predicted and investigated

    本文結合cfd （計算流體力學）技術與氣動噪聲時域理論，求解直升機旋翼懸停和前飛流場及流場氣動噪聲。
  18. Lisheng exhibition sticks to the development direction of being professional, networked, international and branded, takes the long - run development as its strategic objective, follows advanced concepts of international exhibition closely, integrates exhibition services, market research, information, addresses itself to driving the international economic, cultural exchange and trading cooperation

    立升展覽堅持專業化、網路化、國際化、品牌化的發展方向，以長遠發展為戰略目標，緊跟國際展覽的先進理念，集展覽服務、市場調研、信息資訊於一體，致力推動和促進國內外經濟文化交流與經貿合作。
  19. Workplace atmospheres - pumps for the sampling of chemical agents with a volume flow rate of over 5 l min - requirements and test methods

    工作場所空氣.體積流速大於5公升分的化學試劑取樣用動力泵.要求和試驗方法
  20. From the engineering practice of the optomechatronics design for fast, the working principle for system and hardware realization are described, and motor ascending and descending velocity arithmetic is discussed in this thesis, including the realization of the system control loop, the principle of servo control card and its hardware and software realization, the principle of moment real time detect equipment and its hardware and software realization

    其中包括以下幾部分： 1 、系統總控制迴路的工程實現方法； 2 、伺服控制卡的工作原理、電路組成及驅動軟體工作流程； 3 、力矩實時檢測裝置的工作原理、具體實現電路和軟體工作流程； 4 、針對電機的轉速突變時容易出現沖擊抖動的情況，提出了電機升降速的控制演算法。
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