Hurly, J.
, Gillis, K.
, Mehl, J.
and Moldover, M.
(2003),
The Viscosity of Seven Gases Measured with a Greenspan Viscometer, International Journal of Thermophysics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=830829
(Accessed October 8, 2025)
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The Viscosity of Seven Gases Measured with a Greenspan Viscometer
Published
Author(s)
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Abstract
We determined the viscosity of seven gases (Ar, CH4, C3H8, N2, SF6, CF4, C2F6) by interpreting frequency-response data from a Greenspan acoustic viscometer with a detailed model developed by Gillis, Mehl, and Moldover. The model contains a parameter er that characterizes the viscous dissipation at the ends of the viscometer s duct. It was difficult to determine er accurately from dimensional measurements; therefore, we adjusted er to fit the viscosity of helium on the isotherm 298 K (0.6 MPaCitation
International Journal of Thermophysics
Volume
24
Pub Type
Journals
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Keywords
acoustic viscometer, argon, carbon tetrafluoride, hexafluoroethane, methane, nitrogen, propane, sulfur hexafluroride, viscosity
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Created November 1, 2003, Updated February 17, 2017