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Updated: May 25, 2026
Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
Published on: March 12, 2019
Optical monitoring for power law fluids during spin coating
P L G Jardim1, A F Michels, F Horowitz
1Instituto de Física-Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale, CP15051, CEP 91501-970 Porto Alegre, RS, Brasil. pedro.lovato@ufrgs.br
Abstract:
Optical monitoring is applied, in situ and in real time, to non-newtonian, power law fluids in the spin coating process. An analytical exact solution is presented for thickness evolution that well fits to most measurement data. As result, typical rheological parameters are obtained for several CMC (carboximetilcelullose) concentrations and rotation speeds. Optical monitoring thus precisely indicates applicability of the model to power law fluids under spin coating.
