dimensionless coefficient 中文意思是什麼

dimensionless coefficient 解釋
無量綱系數
  • dimensionless : 無量鋼的無維的，無度的
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. The solution presents representative profiles for the dimensionless velocity and the skin friction coefficient at different permeability and injection parameters

    給出了量綱為一的速度分佈以及在不同滲透參數情況下壁摩擦系數的變化。
  2. The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one

    在前人研究的基礎上，本文基於陳龍珠等曾提出的一組實用飽和土波動方程，用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉振動問題，主要工作有：對于飽和地基上剛性圓板的扭轉振動，作者首先採用hankel變換求解了動力控制方程，得到了該控制方程在hankel變換域內的通解，然後由混合邊值條件建立了飽和地基上剛性基礎扭轉振動時的對偶積分方程，並將其化為易於數值求解的第二類fredholm積分方程，用數值方法計算了基礎的動柔度和扭轉角幅值與振動頻率的關系曲線，並將其與單相彈性介質情況進行了對比分析。
  3. By using the solution developed and the frequency - dependent stiffness coefficient and damp coefficient, the dynamic behavior, especially the one concerned with the variation of the dimensionless maximum response along the depth, for the pile with finite length or with infinite length was studied. it was shown that to simplify computation a pile of finite length can be taken as the one of infinite length if the ratio of pile length to its diameter ( i. e. lid ) is greater than 15

    利用所得解，採用與頻率相關的剛度系數和阻尼系數的近似表達式，對有限長樁和無限長樁的動力特性特別是對最大無量綱響應沿深度的變化曲線進行了參數研究，表明在常見樁土參數下，當長徑比大於15時，可將有限長樁視為無限長樁以簡化計算。
  4. The numerical simulation result obtained by taking the dimensionless mass transfer coefficient as the input parameter of the mathematical model is consistent with the 73 groups of the experimental data and the discrepancies of the enthalpy efficiency and regenerative efficiency are mainly within 15 %

    以實驗得到的量綱一傳質系數作為數學模型的輸入條件，數值計算結果與73組實驗數據吻合很好，全熱效率和再生效率的偏差均集中在15 %以內。
  5. The end show that coefficient of convective heat transfer at thermal boundary condition is higher than that at definite heat flux boundary condition. if according to dimensionless equation of heat convection, nu number of the latter almost is mutiplied 1. 47 times of the formal, but the coefficient of convective heat transfer in tube between this two condition is almost equal

    研究結果表明:在實驗室中電加熱方式得到的管外對流換熱系數低於工程中傳熱條件下的管外對流換熱系數，若按傳熱準則式關系，後者的努謝爾特數約為前者的1 . 4倍;而管內的對流換熱系數在兩種邊界條件下的差別不大。
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