1) induced drag
诱导阻力
1.
By shaping the wing with winglet,decrease the sum of induced drag and profile drag,increase span efficiency and lift-drag ratio.
采用Lagrange乘数优化方法,约束升力系数和机翼翼根弯矩,通过修改机翼+翼梢小翼组合体的结构外形,减小机翼的诱导阻力和形状阻力,提高机翼的展向效率和升阻比的大小。
2.
The optimization object is to obtain minimum of the induced drag for the wing with/without the bending moment constrain at the wing root,combined with sequence quadratic programming or quasi Newton methods,respectively.
在有、无翼根弯矩约束的两种情况下,分别结合序列二次规划法和拟牛顿法优化方法,针对优化目标:机翼诱导阻力最小,优化得到机翼和翼梢小翼的最佳外形参数。
3.
Drag was decomposed to entropy drag and induced drag,according to the physical mechanism of drag production,based on the wake integral method,which was very useful for drag reduction design.
利用尾迹积分法按阻力产生的物理机制,将阻力分解为熵增阻力和诱导阻力进行数值计算。
2) reduction of induced drag
降低诱导阻力
3) induced drag coefficient
诱导阻力系数
4) inducedresistance
感抗诱导阻力
5) induced drag reduction
诱导阻力减小
6) induced drag
引风阻力;诱导阻力
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条