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首页> 外文会议>9th International Space Conference of Pacific Basin Societies, Nov 14-16, 2001, Pasadena, California, U.S.A. >EXPERIMENT OF LAMINAR FLOW CONTROL WITH THE USE OF LUMINESCENT PAINT
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EXPERIMENT OF LAMINAR FLOW CONTROL WITH THE USE OF LUMINESCENT PAINT

机译：使用发光涂料进行层流控制的实验

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摘要

In this research, a laminar flow control experiment with boundary layer suction is conducted in the 1.5m low-speed wind tunnel, located at the Department of Aeronautics and Astronautics, University of Tokyo. Laminar flow control is a drag-reduction method used to suppress boundary layer transition, because the skin friction drag in the laminar flow is much less than that in turbulent flow. From the results obtained using a flat plate with a rectangular suction area, the skin friction can be reduced by boundary layer suction under specific conditions. This technique can also be applied to improve the low-speed aerodynamic characteristics of future transportation systems, such as SST, SSTO spaceplane. To measure the skin friction on the surface of the body, luminescent paint was mixed with oil. The silicone oil dropped on the surface of the body will change its shape in the presence of the shear forces due to the outer flow. Thus, by measuring the thickness of the oil from the luminescent emission intensity, the skin friction force can be obtained. The results of this experiment show the applicability of this method, and further investigation into this measurement technique can contribute to the understanding of skin friction drag.
机译：在这项研究中，在位于东京大学航空与航天系的1.5m低速风洞中进行了带有边界层吸力的层流控制实验。层流控制是一种用于抑制边界层过渡的减阻方法，因为层流中的皮肤摩擦阻力远小于湍流中的皮肤摩擦阻力。从使用具有矩形抽吸区域的平板获得的结果来看，可以在特定条件下通过边界层抽吸来减少皮肤摩擦。该技术还可用于改善未来运输系统（如SST，SSTO航天飞机）的低速空气动力学特性。为了测量身体表面的皮肤摩擦，将发光涂料与油混合。由于存在外部流动，在剪切力的作用下，滴在人体表面的硅油将改变其形状。因此，通过从发光强度测量油的厚度，可以获得皮肤摩擦力。实验结果表明该方法的适用性，进一步研究该测量技术可以有助于理解皮肤摩擦阻力。

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