flow assumption 中文意思是什麼

flow assumption 解釋
流動假定
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  • assumption : n. 1. 採取，承擔。2. 假設，假定；臆說；想當然。3. 傲慢，僭越。4. 假裝。5. 〈A-〉聖母升天（節）〈8月15日〉。6. 【邏輯學】小前提。
  1. The assumption of horizontal flow in the vicinity of the drains fails.

    在排水管附近水平流動的假設不成立。
  2. This paper is concerned with, the existence and stability of travelling wave solutions for the viscous balance law which is an extension of viscous conservation law where a reaction term g ( u ) is added. l ) the existence of travelling wave solutions by geometric singular perturbation method, we investigate the existence of travelling waves ( a2 ) connecting a saddle point and a sink point and the existence of viscous shock waves c connecting two adjacent or disadjacent saddle points. by giving a detailed analysis of the fast and slow manifolds and verifying the transversality of the intersection of singular stable and unstable manifolds of the reduced problem along the singular heteroclinic orbit, we obtain the existence of travelling waves ( a2 ) in the case of a convex flow function / and that of viscous shock waves c under the assumption that f " is bounded

    主要結果如下： 1 ）行波的存在性本文利用[ 37 ]中幾何奇異攝動理論，通過仔細分析= 0時的快流、慢流，驗證= 0時慢流方程的穩定與不穩定流形橫截相交於奇異異宿軌道，先在f為凸的條件下嚴格證明了（ ）存在連接不相鄰的鞍點、結點的行波（ a2 ） ；然後在地f有界的條件下得到（ ）存在連接鞍點（包括相鄰和不相鄰）的粘性沖擊波c ，彌補了[ 11 ]缺少嚴格證明的不足，並推廣了[ 11 ]在f為凸的條件下得到的粘性沖擊波的存在性結果。
  3. Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion

    在水利工程中經常需要採用數學模型模擬水流的流態，淺水方程是進行平面流態模擬計算的基本控制方程，但因其忽略了流速垂線分佈的不均勻性，在模擬某些平面流態（如風生流動、河灣水流、潛壩等工程附近的流動）時存在一定的局限性。
  4. Based on the assumption of model ' s graphic structure, the object inherit relationships were set up according to the functions of heat exchangers and types of material flows, and the abstract objects including unit and flow were extracted

    基於模型為圖結構的基本假定，根據受熱面功能和物質流種類確定對象之間的繼承關系，提取出單元和流一組抽象對象。
  5. Abstract : based on the slender - body assumption, the 3 - d flow is approximated to a set of unsteady 2 - d ones

    文摘:引進細長體的假定，把三維的流體運動問題化成了二維的非定常問題，前面剖面對後面剖面的干擾作用用積分表示，改善了切片理論。
  6. This constitutive model describes the non - associated plastic flow of granular material, and replaces the assumption that granular material complies with associated flow rule in the limit " equilibrium theory of granular material

    該本構模型反映了散體材料的非相關塑性流動，取代了散體極限平衡理論中散體材料服從相關流動法則的假定。
  7. The thesis " main studies and achievements are as follows : 1. under the assumption of double - layer computational mode, the governing equations for the horizontal 2 - d stratified density current is derived by integrating the 3 - d fundamental equations along the flow depth. 2

    在異重流雙層計算模式下，從三維水沙基本方程出發，利用數學工具沿垂線積分，推導得出了平面二維異重流上、下兩層水體的水沙運動基本方程。
  8. Based on biot ' s consolidation and simplified sea - bed to two dimensional sea - bed, numerical simulation about the response of sea bed to waves is developed. the assumption was wielding, such as linear wave loading, linear elastic skeleton of soil and darcy ' s law flow

    本文選用了基於biot固結理論，將海床進行二維簡化的情況下海床對波浪響應的數學模型，在模型中採用下列假定：線性波浪作用，線彈性土骨架，孔隙流體的流動滿足達西定律。
  9. By extending the calssical fluid mechanism result about the flow field round a pier to two piers, the formula of the deflection degree of flow direcrion is deduced with the assumption that the field around two piers simulates that of one pier

    將流體力學中圓柱繞流經典理論的成果推廣應用於雙圓柱橋墩的情況，假設單橋墩的繞流流場可以按照一定的規律疊加，推導出圓柱形墩斜交橋梁橋下水流流向偏轉角度的計算公式。
  10. The first one references the principle and methods of small aperture beam technique. the sr measurement of aero - flow medium which fit the quasi - frozen - flow assumption was analyzed. the second measurement the deflection of s - h sensor ’ sub - aperture wave - front, according to spectrum calculation, sr can be gotten also

    特別注意在實踐中具有操作意義的關鍵方法:設置一定閾值電平后，背景電平和讀出噪聲的影響可以降低，從而提高質心探測精度，在實踐中可以找出一個最佳閾值。
  11. An affluence model for debris flow and river is established by using this assumption. the equations of the model are approximately applied for simplicity

    對主河無水流情況下的泥石流運動（即溝道泥石流運動）進行了數學模擬。
  12. The confluence between viscous debris flow and river flow considered as density flow is based on the assumption that the main influence of converging into water flow is the transform of riverbed

    在探討入匯機理的基礎上，認為粘性泥石流入匯對主河的影響主要體現在河床地形的改變。
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