Mass-controlled capillary viscometer for a Newtonian liquid: viscosity of water at different temperatures.
The operation principle of the mass-controlled capillary viscometer is presented for a Newtonian liquid. The derived equation for the temporal changes of the mass in a liquid column draining under gravity through a discharge capillary tube accounts self-consistently for the inertial convective term associated with the acceleration effect. The viscosity of water measured at different temperatures using the new approach is in good agreement with literature data.
Digilov
Rafael M
RM
Department of Education in Technology and Science, Technion, Israel Institute of Technology, Haifa 32000, Israel. edurafi@tx.technion.ac.il
Reiner
M
M
D002197:Capillary Action; D012212:Rheology / Q000295:instrumentation*; D013696:Temperature; D014783:Viscosity; D014867:Water / Q000737:chemistry*
D014867:Water