boundary-layer development 中文意思是什麼

boundary-layer development 解釋
附面層擴展
  • 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...
  • layer : n 1 放置者，鋪設者，計劃者。2 【賽馬】（一般）賭客。3 產卵的雞。4 【軍事】瞄準手。5 層；階層；地...
  • development : n. 1. 發展，發達；進化。2. 展開；擴充；開發。3. 發達物，新事物，發展階段。4. 【生物學】發育（史）；【軍，數】展開；【攝影】顯影，顯像；【音樂】展開（部）；研製，研製成果。
  1. ( 3 ) based on a close research of the cad model representation in mdt, this paper picks up the model information expressed in the boundary representation ( b - rep ) using the development kits of objectarx and mdt api offered by autodesk inc. ( 4 ) the direct slicing data are processed so as to realize the sorting and fitting of short lines, the cutting tool compensation, the layer contour filling and the optimization of the scanning paths, etc. ( 5 ) designs the architecture of rp data processing software according to the functional requirement of rp, and integrates all the functional modules

    （ 3 ）在深入研究mdt （ mechanicaldesktop ）中三維模型表示方法的基礎上，運用autodesk公司提供的mdt二次開發工具objectarx和mdtapi ，成功地實現了對mdt模型信息的提取，進而使直接自適應分層演算法得以實現。 （ 4 ）對直接分層得到的數據進行了工藝規劃。實現了對層片輪廓線段的排序、擬合、刀具補償以及輪廓內部填充和掃描路徑優化等。
  2. The boundary layer can indicate the comprehensive influences of oil reservoirs, the physical properties ( reservoir porosity, permeability, fluid viscosity and its composition ) of inside fluids and development conditions such as pressure gradient : the layer thickness reduces with the rise of capillary radius ; when capillary radius is fixed, the thickness increases with viscosity rise ; the more polarity composition content is, the more obvious the absorption, the thicker the boundary layer, more and more obvious the characteristics of non - darcy filtration

    邊界層反映了儲層、流體物性條件（儲層孔隙度、滲透率、流體粘度、組分）和開發條件（壓力梯度）的綜合影響，認為邊界層厚度隨著毛管半徑的增大而減小；在毛管半徑相同的情況下，邊界層厚度隨壓力梯度的增大而減小，最後達到一個臨界值；毛管半徑一定時，邊界層厚度隨粘度增加而增大；極性組分含量越大，吸附越明顯，邊界層厚度越大；邊界層厚度越大，非達西滲流特徵越明顯。
  3. The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is

    比較全面地查閱了關于變結構控制理論的文獻，總結了滑模變結構控制的發展歷史和特點，詳細介紹了變結構控制的基本概念、基本定義、基本性質、基本原理以及設計方法；系統分析了變結構控制系統抖振產生的機理，並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法；針對傳統抑制和消除抖振方法的不足，改進了傳統方法，得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可變邊界層法和附加連續項法；針對不確定性線性系統，在變結構控制策略中引入模糊邏輯和自適應理論來消除滑動平面上的抖振，提出了一種自適應模糊積分變結構控制方案（ afivsc ） ，利用模糊邏輯來柔化控制量中非線性不連續部分，採用自適應理論，根據系統不確定性大小在線調整模糊輸出量的隸屬函數，另外，鑒于模糊控制本質上是有靜差的，所以本文選擇了帶積分項的切換函數，由於積分項的存在使系統較正為無靜差系統。
  4. Turbulence over flat wall is presented with the cfd software cfd ace ( u ) when given by various inlet boundary conditions, subgrid model and turbulence intensity under the two - dimensional circumstance. on comparing these outcomes with the experimental data, we can analyze the impacts that all these factors have on the development of flow boundary layer

    採用計算流體力學軟體cfdace （ u ） ，在二維情況下應用不同的進口邊界條件、亞格子模型和來流湍流度對平壁流動進行大渦模擬，並將模擬結果與已有的實驗結果進行對比，分析比較了這些因素對流動邊界層發展的影響。
  5. For instance, the development of the boundary - layer shape parameter can be prescribed on the upper surface to allow for maximum lift or extended runs of laminar flow, depending on the design requirements

    比如開發了邊界層的形狀參數，可以指定允許的最高表面上取消或延期舉辦層流、視乎設計要求
  6. The results show the moment developing course of flow over flat wall and the evolvement of coherent structure, and also completely simulate all kinds of detail processes in development of boundary layer over flat wall, such as the generation and rise of low - speed stream, the extension and rupture of horse - hoof - shaped vortex and so on

    模擬結果給出了平壁流動的瞬態發展過程以及流動中擬序結構的發展演變過程，成功地模擬了平壁邊界層發展中的各種瞬態細節過程，如低速條帶的產生、上舉過程，馬蹄形渦的拉伸變形、破裂過程。
  7. 1 ) sale force : publishing first, covering every where. 2 ) exp anding force : expanding space of page and breaking boundary, keeping abreast of the times. 3 ) cohesive force : all people have a common will, being impregnable. 4 ) science and technology force : in information time s, net is the king. 5 ) economic force : ad management, developing actual strength. 6 ) trademark force : serving society, pulling economy develop ment. 7 ) extending force : calling center. information is the key. 8 ) revolu tionary force. - succeeding while changing, never be old. yangzi evenin g competence ' s motive structure includings : l ) basic structure ( system la yer ) : " three no " strategy - the essence of yangzi ' s conti nuous develop ment. 2 ) basic structure ( spirit layer ) : contribution and being pragmatic - telling the secret of " yangzi spirit ". 3 ) core structure ( principle layer ) : o penning up the attrative economy ? he center of yangzi ' s development

    筆者剖析了揚子晚報的競爭力來源，認為它由8個核心部分構成：來源1 ：營銷力? ?發行為先，網點密布；來源2 ：擴張力? ?擴版破界，與時俱進；來源3 ：凝聚力? ?眾志成城，無堅不摧；來源4 ：科技力? ?信息時代，網路為王；來源5 ：經濟力? ?廣告經營，拓展實力；來源6 ：品牌力? ?服務社會，拉動經濟;來源7 :延展力一一呼叫中心，信息為王;來源8 :變革力一一變中求勝，青春不老。
  8. The linear and nonlinear stability of different disturbances in parallel and nonparallel boundary layer are researched. the development of growth rate of small disturbances and the effect of non - parallelism and pressure gradient on the stability of boundary layer are studied especially

    研究了不同情況下的擾動演化過程，特別是擾動增長因子的變化，這是穩定性研究的關鍵問題，還著重研究了非平行性和壓力梯度對邊界層穩定性的作用。
  9. Experimental studies on the non - linear development of the instability in the natural convection boundary layer

    自然對流邊界層非線性穩定性問題的實驗研究自然對流邊界層非線性穩定性問題的實驗研究
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