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Kinetic Theory of Molecular Radiometric Force and Radiometer
Author(s) -
Wu Yau
Publication year - 1967
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19674740304
Subject(s) - knudsen number , radiometer , physics , computation , classical mechanics , mechanics , thermal , kinetic theory , optics , thermodynamics , mathematics , algorithm
The equation for the molecular radiometric force and moment on a body with convex surface enclosed by an arbitrary closed system in the KNUDSEN regime has been presented based on the revised theory of thermal transpiration established recently by WU. Two exact solutions of the molecular vane radiometers in a cylindrical tube and rectangular duct have been obtained in closed forms and calculated through numerical computation. These solutions reduce to the classical theory developed by KNUDSEN in the limit of infinitely large containers.