riblet

绉褶───riblet

concept of multi-scale coherent structures to study the mechanism of riblet surface drag reduction in turbulent boundary layer.───湍流多尺度相干结构的概念引入沟槽壁面湍流边界层减阻机理的研究。

Bottom: Plan view and cross section of a bionic shark skin (riblet film made by 3m) for reducing resistance on aircraft.───底部：计划和跨期的仿生鲨鱼皮节(里布·莱特电影3m公司制造)为减少飞机的阻力。

According to the characteristic of riblet structure, computation region, grids and flow parameters are dealt with reasonably. Results are as follows.───针对翼型表面脊状结构的特点，在数值计算过程中对其计算域、计算网格及流动参数进行了合理的处理。

Lastly, the factors of including turbulent drag reduction efficiency were studied by changing the shape and dimension of riblet.───最后，从沟槽形状、尺寸等方面对影响沟槽面减阻特性的因素进行探讨。

The riblet structure has almost no influence on the lift coefficient and pitching coefficient of model.───脊状结构的存在对模型升力系数和俯仰力矩系数几乎没有影响。

Attack angle has limited influences on drag reduction effect of riblet surface.───攻角对脊状表面减阻效果影响有限；

Exterior flow field measurement above smooth and different riblet surfaces was carried out in a low speed wind tunnel by means of hot-wire anemometry.

Adopting the riblet structure of sharkskin as a templet, two ways of micro-replication, replicated moulding and electroforming, were used to replicate the microstructure on the surface of a polymer.

The riblet structure has almost no influence on the lift coefficient and pitching coefficient of model.

The measurement technique of constant temperature anemometry was used to study experimentally the mechanism of drag reduction in turbulent boundary layer with riblet surface.