Pulsating Flow of an Ostwald—De Waele Fluid between Parallel Plates

González, R.; Tamburrino, A.; Vacca, A.; Iervolino, M.

Keywords: pulsating flow, wall shear stress, non-newtonian fluid, velocity distribution, discharge enhancement, dispersion enhancement


The flow between two parallel plates driven by a pulsatile pressure gradient was studied analytically with a second-order velocity expansion. The resulting velocity distribution was compared with a numerical solution of the momentum equation to validate the analytical solution, with excellent agreement between the two approaches. From the velocity distribution, the analytical computation of the discharge, wall shear stress, discharge, and dispersion enhancements were also computed. The influence on the solution of the dimensionless governing parameters and of the value of the rheological index was discussed.

Más información

Título de la Revista: WATER
Volumen: 12
Número: 4
Editorial: MDPI AG
Fecha de publicación: 2020
Página de inicio: 1
Página final: 22
Idioma: English
URL: https://www.mdpi.com/2073-4441/12/4/932


Notas: WOS