Viscous Flow and Its Effect

Viscous Flow and Its Effect

Kaliappan S., Raj Kamal M. D., Joseph Manuel D., Balaji V., Murugan P.
Copyright: © 2022 |Pages: 13
DOI: 10.4018/978-1-6684-4230-2.ch006
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Abstract

Viscosity is a property that expresses the internal drag of a fluid to motion; impact of viscosity states the statics and flows. Statics means whenever fluids at zero velocity have no relative movements between layers of fluid and thus du/dy = 0. At the time there is no shear stress and viscosity of the fluid is free. Fluid viscosity plays a major role on the fluid floating in it. The authors focused on solids and fluids and the no slip condition, momentum transfer through molecular motion, shear stress and viscosity, Couette flow, and Poiseuille flow. Here the authors made a discussion the Newtonian viscous flow, and the statement of Newton's law of viscosity was examined. The discussion has been extended up to viscosity and the effect of their temperature and impact of increasing in temperature has been explained along with surface tension.
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2. Viscous Flow

Viscous flow is a flow in which frictional effects are dominating. The fluid is flowing in layers. The layer that sticks to the wall has no velocity, which is known as the no slip condition, and it causes friction at the wall. Frictional effects exist between two layers of fluid, with the slower layer attempting to slow down the quicker layer, which can be measured using viscosity. We discover that for a wide range of total wedge angles, local solutions exist, and that a class of individual wedge angles and stress exponents is chosen. For all combinations of individual wedge angles, partial local solutions exist, and the stress exponents are calculated as functions of these angles (Anderson and Davis, 1993).

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