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Flight Experiments on Swept-Wing Roughness Receptivity: Validation Data for Modeling and Computations.

机译：扫掠翼粗糙度接收性的飞行实验：建模和计算的验证数据。

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Micron-sized, spanwise-periodic Discrete Roughness Elements (DREs) were applied to the leading edge of a 30-degree swept-wing. The test article was attached vertically to the port wing of a Cessna O-2A aircraft and operated at a chord Reynolds number of 6.5 to 7.5 million. With a polished leading edge, 80% laminar flow was observed corresponding to N-factors greater than 12. Critically space DREs were applied a the leading edge to excite the crossflow instability and move transition forward. In this case, calibrated, multi- element hotfilm sensors were used to measure disturbance wall shear stress. The roughness height was varied from 0 to 50 microns both in the positive (bumps) and negative (dimples) sense. Thus, the disturbance amplitude variations were determined as a function of modulated DRE heights.

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作者
Saric, W. S.;
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年度 2010
页码 1-33
总页数 33
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Laminar flow; Leading edges; Swept wings; Calibration; Cross flow; Detectors; Flight testing; Free stream; Helicopters; Instability; Roughness; Shear stresses; Validation; Vertical orientation; Discrete roughness elements;

机译：层流;前缘;扫翼;校准;横流;探测器;飞行试验;自由流;直升机;不稳定性;粗糙度;剪切应力;验证;垂直方向;离散粗糙元素;

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专利

1. Roughness receptivity in swept-wing boundary layers - experiments [J] . Andrew L. Carpenter, William S. Saric, Helen L. Reed International Journal of Engineering Systems Modelling and Simulation . 2010,第1a2期

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3. Validation of space net deployment modeling methods using parabolic flight experiment [J] . Shan Minghe, Guo Jian, Gill Eberhard, Journal of guidance, control, and dynamics . 2017,第12期

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4. In- Flight Receptivity Experiments on a 30- degree Swept- Wing Using Micron- sized Discrete Roughness Elements [C] . A. Carpenter, W. Saric, H. Reed AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition . 2009

机译：使用微米级离散粗糙度元件在30度扫掠机翼上的飞行接受性实验
5. In-flight receptivity experiments on a 30-degree swept-wing using micron-sized discrete roughness elements. [D] . Carpenter, Andrew Lee. 2009

机译：使用微米级离散粗糙度元件在30度后掠翼上进行机上接受性实验。
6. Non-linear non-monotonic effect of nano-scale roughness on particle deposition in absence of an energy barrier: Experiments and modeling [O] . Chao Jin, Tomasz Glawdel, Carolyn L. Ren, -1

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7. In-flight Receptivity Experiments on a 30-degree Swept-wing using Micron-sized Discrete Roughness Elements [O] . Carpenter Andrew L. 2010

机译：使用微米级离散粗糙度元件在30度后掠翼上进行机上接受实验

Flight Experiments on Swept-Wing Roughness Receptivity: Validation Data for Modeling and Computations.

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