Original title:
Effect of Apparent Wall Slip on Normal-Stress Viscometric Data
Authors:
Wein, Ondřej Document type: Papers Conference/Event: Jubilejní konference chemického a procesního inženýrství CHISA 2003 /50./, Srní (CZ), 2003-10-20 / 2003-10-23
Year:
2003
Language:
eng Abstract:
In the present lecture, we attempt for the first time to analyze the AWS effect on normal-stress data for the parallel-plates rotational instrument, using 2D numerical simulations. The related problem for the viscosity data is recalled from the previous reports. For the narrow-gap configurations, h/R <<1, the simple formulas of the one-gradient approximation give an aceptable agreement of the predicted torque M axial thrust F with the correct 2D theory and, hence, they seem to be acceptable in interpreting the primary rheometical data.
Keywords:
effect; viscometric data; wall-slip Project no.: CEZ:AV0Z4072921 (CEP), GA104/01/0545 (CEP) Funding provider: GA ČR Host item entry: Sborník 1, ISBN 80-86059-36-7
Institution: Institute of Chemical Process Fundamentals AS ČR
(web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0064004