set of boundary conditions 中文意思是什麼

set of boundary conditions 解釋
邊界條件系統
  • set : SET ＝safe electronic transaction 安全電子交易〈指用信用卡通過因特網支付款項的商業交易〉。n 【埃...
  • of : OF ＝Old French 古法語。
  • boundary : n 邊界，疆界，限界 （between）;（球場）邊線；界標；界限，范圍，分野。 aboundary dispute 邊界糾紛...
  • conditions : （旅遊合同中）條件或服務項目
  1. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping

    本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。
  2. Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils

    其次，為全面了解這種新型電磁電機的電磁特性和動力特性，本文從電機磁場的基本方程及其邊界條件出發，應用無旋磁場的標量磁位概念，建立了端面搖擺式電磁微電機內部磁場的數學模型，並以此為基礎，詳細分析了電機氣隙磁場的各方面性質，對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。
  3. On the premise of a given set of material parameter, structural boundary shape and condition, design variables - thickness of plate and shell, is designed to minimize the structural weight subjected to the constraint conditions. 1. for the problem with size and stress constraints, full stress design method is used to solve the sectional optimization of plate and shell structures

    在給定了板殼的材料常數、板殼結構的邊界形狀和邊界條件的前提下，確定表徵板殼厚度的設計變量，在滿足約束條件下實現結構重量最小： 1 .對于尺寸和應力約束的問題，使用滿應力方法求解。
  4. Article 14 the units in charge of the military restricted zones shall, on the basis of specific conditions and in accordance with the designated limits of the zones, put up enclosing walls and barbed wire fences for the land military restricted zones and set up barriers or boundary markers for the military restricted waters

    第十五條禁止陸地、水域軍事禁區管理單位以外的人員、車輛、船舶進入禁區，禁止對禁區進行攝影、攝像、錄音、勘察、測量、描繪和記述，經軍區級以上軍事機關批準的除外。
  5. First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given

    由於缺陷的識別是一類典型的反問題，因而首先從時諧電磁maxwell方程和helmholz方程出發，具體地闡述了求解正散射問題的有關方法，包括各種（夾雜）邊界條件下的數值解法，就解的存在性唯一性給予了肯定的回答；隨后對逆散射問題的理論作了簡短的回顧，包括解的唯一性以及非線性不適定積分方程的處理等；然後對均勻介質和非均勻介質的逆散射問題建立了在各種邊界條件下的邊界識別的指示函數方法，鑒于近場數據獲得的重要性，對近場測試時邊界識別的方法給予了相應的證明，並且實現了數值模擬。
  6. And concerning boundary conditions along piping system are properly set. futhermore, vertex sound is discussed in this paper. effect of the noise reduction about the mufflers is analysed, and a lot of trials is used to testify exist of valve noise and influence to pipe system. there kinds of mufflers are proved that they can reduce the fluid niose of pipe system by a large number of experimentation

    對噪聲的抑制裝置? ?消聲器的降噪效果進行了分析，並結合實際工作建立了模擬海水管路試驗臺架，通過一系列試驗，說明閥門噪聲的存在，及其對管路流噪聲的影響，證明設計的三種結構消聲器對管路流噪聲的良好消減效果。
  7. In chapter two, according to n - s equation, considering the couple between liquid and solid, the double - fluid model is used to respectively set up momentum equations of two - phase fluids in condition of basic hypothesis, which are general equations of two - phase fluids. simplifying the equations in boundary layer, the momentum differential equations are required and the boundary conditions are given. in the same time, the simplifying equations and their solutions, in which solid grain satisfies in boundary layer

    第二章依據n - s方程，考慮到液、固之間的相間耦合，在基本假設條件下，採用雙流體模型，分別建立液、固兩相的動量方程，它是固液兩相流體的一般方程式；對其在邊界層流區內進行量級比較，得到邊界層動量微分方程並給出其邊界條件，同時也得到固體顆粒在邊界層內所滿足的簡化方程及其解的表達式。
  8. In this paper, on the base of paraxial approximations, we present a set of absorbing boundary conditions of 3d elastic wave equations and apply to the 3d elastic wave numerical modeling in isotropic medium

    本文基於傍軸近似法提出了計算三維彈性波方程的吸收邊界條件公式，表示了各邊界面、邊棱和角點處波場所滿足的單程波方程，並在三維彈性波數值模擬中進行了應用。
  9. This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades. a mini wind tunnel is designed and set up which also can be used in other micro flow experiments. on the basis of this mini wind tunnel, three mini flow experiments, including micro jet experiment, micro boundary layer experiment and mini - turbine cascades experiment, have been carried out

    本文以某型微型渦輪噴氣發動機研製為背景，以認識微尺度下粘性流體流動狀態及其機理和微渦輪葉柵通道內部流動特性為目的，設計並搭建了除本實驗外還可供其他流體力學實驗使用的微型風洞，並在該微型風洞基礎上進行了微尺度射流實驗、微尺度壁面邊界層實驗和微尺度渦輪葉柵實驗。
  10. This thesis in theory deals with electromagnetic wave scattering by multilayered confocal and non - confocal spheroidal particles illuminated by gaussian beams, in which the main contributions are as follows : 1. in the case of multilayered confocal spheroidal particles, the scattered fields as well as the fields within each layer are obtained in terms of infinite series with spheroidal vector wave functions by using an appropriate expansion of the incident gaussian beam. by virtue of the boundary conditions, we write the set of equations for determining the unknown expansion coefficients and then solve it

    本文從理論上研究了多層共焦和非共焦橢球粒子對高斯波束的散射，主要成果如下： 1 .我們研究了多層共焦橢球粒子對高斯波束的散射，把入射高斯光，散射場，各層橢球內的電場和磁場用適當的橢球矢量波函數展開，應用電磁場邊界條件，寫出確定各展開系數的方程組，求出散射場系數，進而求出散射場及散射截面。
  11. Most analytical studies need precise mathematics model and involve to solve the problems of nonlinear two - point boundary value and singular surfaces, which are formulated by the set of necessary conditions of game optimality. so it is impossible to get the accurate solutions

    這主要是由於微分對策理論來源於最優控制理論，因此它需要精確的數學模型，以及在求解時會遇到非線性兩點邊值問題和奇異面問題。
  12. Build the compute model of all - glass evacuated solar collector tube in fluent according to the physical model and the interface of fluent, set the boundary conditions on the basis of the fact of three different states of air stagnation, water stagnation and heat loss. the calculation results have a good match with the test results. 2

    根據太陽能真空集熱管的物理模型和fluent的建模要求，建立了太陽能真空集熱管的fluent計算模型，根據太陽能真空集熱管在悶曬、空曬和散熱狀態下的工作條件，設置fluent計算的邊界條件，對三種工況下的流場和溫度場進行計算，計算結果與實驗測試結果非常吻合； 2
  13. Based on the theory of thin - walled curved bar, reasonable hypothesized a third - ord parabolic curve, the paper adoptes variational method on energy, taking the coupled relationship of the effect of curvature radius, bend, torsion and shear - lag into consideration, establishes the elastic governing differential equation and boundary conditions for thin - walled curved box girders, which set the foundation of theoretical analysis of shear - lag effect in thin - walled curved box girders

    摘要文章以薄壁曲桿理論為基礎，合理地假設了三個剪力滯翹曲位移函數，應用能量變分法推導出考慮曲率半徑影響、彎、扭、剪力滯耦合的曲線箱梁彈性控制微分方程及其邊界條件，為薄壁大麴率箱梁剪滯效應建立了理論分析基礎。
  14. The numerical methods utilized in solving the set of mathematical equations involve calculating the spatial rate of change of variables, which means a priori grid point value information along the boundary outside the model domain has to be separately provided to set up time - dependent boundary conditions for computing the governing equations

    ：計算有關數學方程組的數值方法，牽涉到變數在空間的分佈變化，故此亦需要另外提供模式范圍以外的網格點值，從而按時間設定邊界條件，以完成基本方程組的運算。
分享友人
分享到 Line

分享到臉書