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Title: Experimental characterization of edge force on the Crookes radiometer

The contribution of edge force on the Crookes radiometer is experimentally investigated with three vane geometries. This work examines increasing the force per unit weight of a radiometer vane for applications such as near-space propulsion by increasing the vane’s perimeter while decreasing the total surface area of the vane by means of machined holes in the vanes. Experimental results are given for three vane geometries. These results indicate that although force to vane weight ratios can be improved, the maximum force is achieved by a vane geometry that contains no hole features.
Authors:
;  [1] ; ;  [2]
  1. University of Colorado Colorado Springs, Department of Mechanical and Aerospace Engineering, Colorado Springs, CO 80918 (United States)
  2. Gimel, Inc., Montrose, CA 91020 (United States)
Publication Date:
OSTI Identifier:
22390563
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1628; Journal Issue: 1; Conference: 29. International Symposium on Rarefied Gas Dynamics, Xi'an (China), 13-18 Jul 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GAS FLOW; GEOMETRY; MECHANICAL EFFICIENCY; MECHANICAL ENGINEERING; RADIOMETERS; SURFACE AREA; SURFACE FORCES; VANES