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1)  starting drag resistance
起动拖曳力
1.
This paper analyzed starting condition(starting velocity and starting drag resistance)of sediment and many formula and curves are analyzed and evaluated.
分析了泥沙起动条件(起动流速和起动拖曳力)的研究现状,并对众多起动条件公式或曲线进行分析、评述,对工程实际或科研中起动流速公式的选用有所帮助。
2)  dragging force
拖曳力
1.
A new criterium based on the ratio of local spray dragging force to local smoke buoyancy was proposed to analyze the stability of smoke under sprinkler spray.
对水喷淋作用时液滴与烟气层的相互作用过程进行分析,采用单位体积液滴拖曳力与烟气浮力的比值作为参数,建立了水喷淋作用时烟气层稳定性的判断方法。
2.
The orientation the bow of gold dredger must face to when taking up berth in flood season and the method to estimate the dragging force of gold dredger produced by the pounding of flood water are explained and introduced in this paper.
本文介绍了采金船渡汛时的停泊方向及采金船在洪水中可能产生拖曳力的估算方法。
3)  drag force
拖曳力
1.
Based on theoretical analysis,the ratio of the maximal drag force of unit area D0 to the maximal buoyancy force of unit area B0 in the spray region is proposed as a new criterion for predicting the stability of smoke layer under sprinkler spray.
利用PolyU/USTC大空间实验厅内的水-烟耦合作用实验台,测量了不同喷淋压力下的烟气层温度和厚度;结合理论分析,提出了以喷头正下方单位面积总拖曳力和总浮力之比D0/B0作为烟气层稳定性判据,得到了烟气层状态与D0/B0之间的关系。
2.
After analyzing the mechanism of the sand entry of perforated well,based on the theory of linear elasticity and considering the effect of temperature-change stress and drag force of the fluid flow through porous medium,a new model for forecasting the sand production of perforated well is established.
针对此问题,分析了射孔完成井的油层出砂机理,以线弹性理论为基础,以Fairhurst推导得到的井眼周围应力分布表达式为依据,得出射孔孔眼周围的应力表达式及射孔孔眼壁上任意位置的周向有效应力表达式,同时考虑变温应力和流体渗流作用的拖曳力影响,建立了一种新的射孔完井出砂预测模型。
3.
Under the hypothesis of steady uniform flow,the depth-integrated turbulence time-averaged momentum equation for the main flow direction is simplified by considering the effect of the vegetation on the flow as the drag force item as well as the secondary flows.
通过恒定均匀流的假设,对主流方向上的沿水深积分的紊流时均运动微分方程式进行简化得到了相应的控制方程,其中引入植被对水流作用的拖曳力项,并考虑二次流的影响。
4)  hauling force
拖曳力
1.
Flow through fissures in rock mass applies simultaneously the normal hydrostatic seepage pressure and the tangent hauling force (the dynamic seepage pressure) on fissure walls.
岩体中裂隙水流对裂隙壁同时具有法向的渗透静水压力作用和切向的拖曳力(渗透动水压力)作用。
2.
Flow in the fissures of rock mass applies simultaneously the normal hydrostatic seepage pressure and the tangent hauling force(dynamic seepage pressure) on fissure walls.
裂隙水流对裂隙壁同时具有法向渗透静水压力作用和切向的拖曳力 (渗透动水压力 )作用。
5)  drag stress
拖曳应力
6)  drag [英][dræɡ]  [美][dræg]
阻力拖曳
补充资料:拖曳
1.亦作"拖拽"。 2.牵引;拉扯。 3.拉长。 4.拖延。 5.犹奔走。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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