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The Viscosity of Seven Gases Measured with a Greenspan Viscometer



John J. Hurly, Keith A. Gillis, J B. Mehl, Michael R. Moldover


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 MPa
International Journal of Thermophysics


acoustic viscometer, argon, carbon tetrafluoride, hexafluoroethane, methane, nitrogen, propane, sulfur hexafluroride, viscosity


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], (Accessed June 13, 2024)


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Created November 1, 2003, Updated February 17, 2017