Determination of shear viscosity and shear rate from pressure drop and flow rate relationship in a rectangular channel |
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| Authors: | Younggon Son |
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| Affiliation: | Division of Advanced Materials Science and Engineering, Kongju National University, Kongju, Chungnam 314701, South Korea |
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| Abstract: | In this study, we present a unique approach to calculate the shear viscosity and shear rate with the pressure drop and flow rate data from a channel having a rectangular cross-section with a height-to-width ratio (H/W) of close to one. The derived equation was verified with experimental data from rectangular dies whose height-to-width ratio (H/W) ranges from 0.1 to 1. It was confirmed that the proposed approach is reliable for the calculation of the shear viscosity and shear rate from the flow data in a rectangular channel. |
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| Keywords: | Rectangular channel Pressure flow Non-Newtonian fluids |
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