flow resistance bed 中文意思是什麼

flow resistance bed 解釋
穩定河床
  • 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、...
  • resistance : n. 1. 抵抗，反抗，抗拒，抵禦；敵對，抵抗力，反抗力，阻力，【生物學】抗病性。2. 【電學】電阻；阻抗；電阻器。
  • bed : n 1 床，床鋪；床位，鋪；（動物的）窩；〈比喻〉安樂窩，墳墓；床墊；睡眠；就宿。2 婚姻，夫婦關系。3...
  1. 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。
  2. The additional resistance caused by sediment transport of bed - load and suspended load is derived from mean energy equation of sediment - laden flow, and the variation of resistance in sediment - laden flow is discussed

    從挾沙水流的平均能量方程出發，得到了推移質附加阻力的計算公式及懸移質附加阻力計算公式，並對挾沙水流的阻力進行了討論。
  3. The bed resistance is obtained by express of the single - fluid model for debris flow

    數學模型採用一種基於三角網格的顯式差分格式?有限節點法。
  4. To meet the necessity of engineering practice, this thesis carries out a research on the flow characteristics of the concrete abatise groups. after summarizing the present methods of bed resistance research, on the base of theoretic analysis, the contents, technical analysis and methods of the research are decided

    本文從河道阻力研究入手，在進行河道阻力研究方法綜述之後，指出當前研究中的一些熱點和難點及其與本文研究工作的關系；在理論分析的基礎上，提出了榪槎群水流特性研究的內容、技術路線和研究方法。
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