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Scaling results for the Liquid Sheet Radiator (LSR)Surface tension forces at the edges of a thin liquid (approx. 100 micrometers) sheet flow result in a triangularly shaped sheet. Such a geometry is ideal for an external flow radiator. The experimental investigation of such sheet flows was extended to large sheets (width = W = 23.5 cm, length = L approx. = 3.5 m). Experimental L/W results are greater than the calculated results. However, more experimental results are necessary for a complete comparison. The calculated emissivity of a sheet of Dow-Corning 705 silicone oil, which is a low temperature (300 to 400K) candidate for a liquid sheet radiator (LSR), is greater than .8 for sheet thicknesses greater than 100 micrometers.
Document ID
19890015906
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Chubb, Donald L. (NASA Lewis Research Center Cleveland, OH, United States)
Calfo, Frederick D. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1989
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NASA-TM-102100
NAS 1.15:102100
E-4835
Report Number: NASA-TM-102100
Report Number: NAS 1.15:102100
Report Number: E-4835
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: Washington, DC
Country: United States
Start Date: August 6, 1989
End Date: August 11, 1989
Sponsors: AIAA, ACS, IEEE, AIChE, ASME, ANS, SAE
Accession Number
89N25277
Funding Number(s)
PROJECT: RTOP 506-41-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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