挠率 meaning in Chinese
torsion
Examples
- Explanation for galaxy rotation using general relativity theory plus torsion
用广义相对论加挠率来诠释银河旋转 - For different f , the effect of curvature and torsion on the flow structure , temperature distribution , the friction factor and nusselt number
不同的f下挠率和曲率对流动结构、摩擦系数和nusslt数的影响不同。 - The following results are obtained : ( 1 ) the flow in rotating helical pipes are affected by dean number , curvature , torsion ( or germano number ) , the ratio of the coriolis force to the centrifugal force f number ( or rossby number ) and the geometry of the cross section
研究结果表明： ( 1 )旋转螺旋管道流动特性受dean数、曲率、挠率(或germano数) 、科氏力与离心力之比f数(或rossby数)以及截面的形状五种因素的影响。 - ( 5 ) as torsion is increased , the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
( 5 )增大挠率，逆时针方向旋转的一二次涡和流函数的负值区域增大，轴向速度最大值的位置按逆时针（环形截面）或顺时针（圆截面）方向旋转，摩擦系数比最终趋向于1 。 - ( 2 ) with f varying , there exists a number fr which is about - 1 ( curvature , torsion and dean number have little influence on fr ) , when f > fr , the maximum of the axial velocity is near the outside bent and the friction factor ratio increases with f increasing ; when f < fr , the maximum is near the inner side bent and the ratio increases with f decreasing ; when f = fr , the distributions of the axial velocity are similar to those of poiseuille flow and the friction ratio is about 1
( 2 )当f变化时，存在确定的数值fr ( fr在- 1左右。曲率、挠率和dean数对fr的影响很小) ，当f fr时，轴向速度最大值偏向外侧，摩擦系数比随f增大而增大；当f fr时，轴向速度最大值偏向内侧，摩擦系数比随f减小而增大；当f = fr时，轴向速度的分布和poiseuille流近似相同，摩擦系数比约为1 。