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

Permalink: http://www.nusl.cz/ntk/nusl-25247


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