PSP Measurements of Supersonic Flow Across an Open Cavity with Serrations

Picolet, Olivier; Neely, Andrew J.; Gai, S. L.

doi:10.2514/6.2010-1094

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition 2010

DOI: 10.2514/6.2010-1094

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PSP Measurements of Supersonic Flow Across an Open Cavity with Serrations

Olivier Picolet¹,

Andrew J. Neely

S. L. Gai

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2021

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Application of colour fluorescent oil flow visualization for a high speed cavity

Zhou

et al. 2021

J. Phys.: Conf. Ser.

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For studying the complex flow structure of a high speed cavity, including shear layer, separation, reattachment and vortex, the single-color fluorescent oil flow visualization system in the 0.6m×0.6m trisonic wind tunnel of China Aerodynamic Research Development Centre was enhanced. Different portions of the cavity such as its bottom wall, left and right side walls, front and rear walls and area outside the cavity utilized different oil films with different fluorescent particles to visualize the flow mixing more effectively in the cavity. Specialized ultraviolet light sources are used to enhance the oil flow image contrast. Additionally, to ensure the oil film follows the surface streamlines and indicates the skin friction lines more accurately, the thickness and viscosity of the oil film are well controlled. A high-speed cavity wind tunnel test was conducted to validate the improved oil flow visualization system at Mach number ranging from 0.6 to 2.0. The experimental result shows that the improved oil flow system can effectively visualize complex flow patterns of the cavity flow at all Mach numbers. Colour fluorescent oil flow visualization system established in the present study provides a capability to visualize the flow mixing phenomenon in cavity flows with a high image contrast.

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Application of colour fluorescent oil flow visualization for a high speed cavity

Zhou

et al. 2021

J. Phys.: Conf. Ser.

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PSP Measurements of Supersonic Flow Across an Open Cavity with Serrations

Cited by 1 publication

References 12 publications

Application of colour fluorescent oil flow visualization for a high speed cavity

Application of colour fluorescent oil flow visualization for a high speed cavity

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