curvilinear coordinate 中文意思是什麼
curvilinear coordinate
解釋
曲線坐標- curvilinear : 弧形的
- coordinate : adj 1 同等的，同位的；協調的，配合的；【語法】對等的。2 【數學】坐標的。3 （圖書、資料編目）交叉...
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They form a three-parametric, orthogonal net and may be chosen as coordinate lines of a special, curvilinear coordinate system.
它們形成三參數正交網，可以把它們選作特殊曲線坐標系的坐標線。 -
Numerical simulation of two - phase turbulent combusti on flow in an afterburner under generalized nonorthogonal curvilinear coordinate systems
非正交曲線坐標系數值模擬加力燃燒室湍流兩相流燃燒 -
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。 -
In arbitrary curvilinear coordinate systems, three dimensional turbulent combustion flow fields of the three kinds of turbofan engine afterburner with the longitudinal heat shield 、 outer cold flow and the jet nozzle are simulated. the three - dimensional body - fitted grids are generated by an elliptical grid generation procedure and zone method
本文在任意曲線坐標系統下對三種帶有縱向隔熱屏、外冷卻通道和尾噴管的渦扇發動機加力燃燒室的三維紊流燃燒流場進行數值模擬。 -
First, the fundamental theory of the basic fdtd method and its application in the analysis of the electromagnetic properties of infinite planar periodic structures is summarized. the basic ideas of the auxiliary fields fdtd method is expressed and generalized to the situations of the 2 - d periodic structures, to lossy media, and to the curvilinear coordinate. the shortcoming of this method in the management of conformal grids is pointed out
首先總結了fdtd方法的基本理論及其在周期性結構電磁特性分析中的應用，闡述了輔助場fdtd方法的基本思想，把它推廣到二維周期性的情況和計算區域為有耗媒質的情況，再進一步推廣到曲線坐標系中，並指出了該方法在網格共形處理中的不利之處。 -
To analyze the hydrodynamic structure of the estuary, 3d k - numerical model with curvilinear fitted coordinate has developed. the distribution of velocity and turbulent exchange coefficient at different time has obtained and analyzed
紊流模型對測驗河段進行計算，得到特徵時刻該潮汐河口段的水力要素及垂向紊動混合系數的分佈。 -
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。 -
Using the numerical computation method to simulate the pure air flowing in the plasma generator and using zero dimension theory and continuous medium hypothesis to establish the mathematical model of the plasma generator and applying the curvilinear coordinate to disperse the space of the plasma generator, applying simplec method to solve the set of discredited equations
應用數值計算的方法模擬了等離子發生器內部的純空氣流動，應用零維理論分析模型和連續介質假設建立了描述等離子發生器內部流動和傳熱的數學模型；採用貼體坐標系對等離子發生器的流場空間進行空間離散；採用simplec演算法來求解離散方程，獲得流場的數值解。 -
Using matrix as a powerful mathematical tool, we present the description of a particle ' s motion in general curvilinear coordinate system
摘要利用矩陣這一強有力的數學工具，給出了一般曲線坐標系下質點運動的描述。 -
Go a step further, beginning with the relation of the general curvilinear coordinate system and its corresponding reciprocal base, we derived the description of the particle ' s motion in the reciprocal base, and the covariant components of the particle ' s motion were obtained as well
進一步地，從一般曲線坐標系與其對應倒基的關系出發，導出了一般曲線坐標系對應倒基下對質點運動的描述，並進而給出了質點運動對應的協變分量。 -
In a three - dimensional ocean model with curvilinear coordinates horizontally and a coordinate vertically, the adapted grids at a layer for interpolation in the eulerian - lagrangian method ( elm ) is unreasonable over steep topography, because the vertical distance between the adjacent grids in the same a layer is too large
摘要在水平曲線坐標和垂向坐標的三維海洋模式下，歐拉拉格朗日方法的插值如果在-面相鄰網格之間進行，那麼在水深變化劇烈處，由於-面相鄰網格之間的垂向距離較大，插值依據會顯得較不合理。 -
Finally, in orthogonal curvilinear coordinate systems numerical model is established and applied in the yangtze river estuary in which some regulation plans are taken include submerged jets and groins. verifications are also done to verify water level and velocity. flow fields are computed for the analysis of effect of regulation engineering on the whole water area
最後，應用正交曲線網格技術，建立了正交曲線坐標系下廣義淺水方程的計算模式，將之應用於長江口深水航道整治工程的流場計算，進行實測水位、流速驗證和流場模擬。 -
The expression of the improved boussinesq equations in curvilinear orthogonal coordinate system is derived. on the basis of poission equation conversion, the methods to generate curvilinear orthogonal grids are introduced, and then the two - dimensional numerical wave model under curvilinear orthogonal coordinate system is established
推導了正交曲線坐標系下的改進型boussinesq方程，以poission方程變換為基礎，建立擬合正交曲線坐標系下正交曲線網格的生成方法，進而建立正交曲線坐標系下的二維波浪模型，提高了模型對復雜地形的適用性。 -
C ) including thermal radiation effects by the six - flux model of radiation. d ) applying the curvilinear coordinate system for the complex geometry of diffusers
採用了適用於三維問題的六通量輻射模型對燃燒室內的輻射換熱進行數值模擬； d -
After the coordinate transformation, the discrete velocity boltzmann equation is solved directly in computational domain to preserve the geometry of body. the results comparison of cylindrical couette flow at different size meshes, different lattice bgk models and different algorithms shows that, not only the precision of the incompressible lattice bgk model is satisfactory, but also the curvilinear coordinate algorithm is efficient
首先計算了存在理論解的圓柱couette流動，並針對不同數目的離散網格、不同格子模型以及不同坐標系演算法，對結果進行了比較，不僅再次印證了本文第四章給出的不可壓格子模型具有滿意的計算精度，而且表明本章的貼體坐標演算法是行之有效的。 -
Orthogonal curvilinear coordinate
正交曲線坐標
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