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http://dx.doi.org/10.5139/JKSAS.2011.39.6.559

A Flow Channel Design on IR Window Cooling Device  

Park, Youn-Jung (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.6, 2011 , pp. 559-566 More about this Journal
Abstract
This paper presents the flow passage design for a window cooling device, which have a conical poppet valve and an emissive orifice. Computational flow analysis and experiment are conducted according to the poppet strokes. The results show satisfactory flow characteristics that pressure is reduced enough to endure material strength and the flow does not choked inside window. The correction factor of discharge coefficients is found between 2-dimensional analysis and experiments, which is applied to control coolant flow rates of the window cooling device.
Keywords
Window Back Surface Cooling; Window Cooling; Internal Cooling; Cooling Device;
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