The drag force is obtained by calculation of the momentum deficit in the wall boundary layer.
拖曳力，得到了计算的势头赤字在墙上的边界层。
Using numerical calculation, optimal roll program, the ratio of lift and drag, reentry Angle and reentry time of spacecraft are gotten.
通过数字计算，得到飞船的最优滚转程序、升阻比、再入角和再入终端时间。
The calculation results prove that unless the initial film thickness or the relative velocity is very large, the inner evaporation drag should be taken into account at high temperature conditions.
计算结果表明，除非初始汽膜厚度或相对速度很大，否则计算高温颗粒在液面下运动的阻力时必须要考虑蒸发阻力。
Through the calculation on flexivity of drag-chainand length of chain curve, set screw-pulling instrumentneeds to be adaptedto suitable period.
通过对牵引链的挠度和链曲线长的计算，确定链传动需要调整的适当时期。
To study the effect of aerodynamic drag in the solar array spreading on the ground, a calculation method of time-varying aerodynamic drag was put forward based on dynamic meshes in this paper.
为研究太阳帆板地面展开试验中气动阻力的影响，基于动网格技术提出了一种时变空气阻力计算方法。
They got some number that looks like for the wavelength they got the distance from here to Chicago, and they are going to drag that through the whole calculation.
他们得到一些数，看上去像是波长，他们得到这里，到芝加哥的距离，他们把那个值，用到整个计算中。
The researches of drag reduction by grooved surface in water are mostly concentrated in experimentations recently, and researches in theory and numerical calculation are lacked.
近年来对于水下条纹沟槽表面减阻的研究多集中在试验方面，理论分析和数值计算进行的却不多。
The researches of drag reduction by grooved surface in water are mostly concentrated in experimentations recently, and researches in theory and numerical calculation are lacked.
近年来对于水下条纹沟槽表面减阻的研究多集中在试验方面，理论分析和数值计算进行的却不多。
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