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Title: Pressure losses and limiting Reynolds number for non-Newtonian fluids in short square-edged orifice plates
Authors: Ntamba-Ntamba, BM 
Fester, Veruscha G 
Keywords: Pressure Losses;Reynolds numbers;Non-Newtonian Fluids;Short square-edged orifice plates
Issue Date: 2012
Publisher: Journal of Fluids Engineering
Source: Journal of Fluids Engineering-Transactions of the ASME, 134:091204-1-091204-9, 2012
Abstract: Correlations predicting the pressure loss coefficient along with the laminar, transitional, and turbulent limiting Reynolds numbers with the β ratio are presented for short square-edged orifice plates. The knowledge of pressure losses across orifices is a very important industrial problem while predicting pressure losses in piping systems. Similarly, it is important to define stable operating regions for the application of a short orifice at lower Reynolds numbers. This work experimentally determined pressure loss coefficients for square-edged orifices for orifice-to-diameter ratios of ββ = 0.2, 0.3, 0.57, and 0.7 for Newtonian and non-Newtonian fluids in both laminar and turbulent flow regimes.
Appears in Collections:Eng - Journal articles (DHET subsidised)

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