Experimental and numerical studies of a three-dimensional water jet under suction and countercurrent flows PDF Download
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Author: J. E. Kowalski
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: J. E. Kowalski
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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![An Experimental and Numerical Investigation of Three-dimensional Jet Flows from Sharp-edged Orifices [microform] PDF](https://books.google.com/books/content/images/frontcover/xCUUvwEACAAJ?fife=w80-h100)
Author: Rainer Rudolf Schwab
Publisher: National Library of Canada
ISBN: 9780315423091
Category :
Languages : en
Pages :
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Author: Canadian Nuclear Society. Conference
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 512
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Author: Kofi F. K. Adane
Publisher:
ISBN:
Category :
Languages : en
Pages : 406
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A research program was designed to investigate the characteristics of three-dimensional laminar wall jet flow of both Newtonian and two shear-thinning non-Newtonian fluids. The non-Newtonian fluids were prepared from xanthan gum solutions of various concentrations. Both experimental and numerical methodologies were employed in this study. The wall jet was created using a circular pipe of diameter 7 mm and flows into an open fluid tank. The initial Reynolds numbers based on the pipe diameter and jet exit velocity ranged from 250 to 800. The velocity measurements were conducted using a particle image velocimetry technique. The measurements were conducted at several streamwise locations to cover both the developing and self-similar regions. For the numerical study, the complete nonlinear Navier-Stokes equation was solved using an in-house colocated finite volume based CFD code. A Carreau model was employed for the non-Newtonian fluids. The viscosity in the governing equations was obtained explicitly. From the PIV measurements and CFD results, velocity profiles and jet half-widths were extracted at selected downstream locations to study the effects of Reynolds number and specific fluid type on the jet characteristics. It was observed that the numerical results are in reasonable agreement with the experimental data. The decay of maximum velocity, jet spread rates, skin friction coefficient, streamwise velocity profiles, and secondary flows depend strongly on the initial Reynolds number irrespective of the fluid. The results also show that the jet spreads more in the spanwise direction than in the transverse direction in the early flow development whereas the reverse is true in the downstream region. Important differences were observed when the results for the non-Newtonian fluids were compared with those for Newtonian fluid.
Author: Douglas Daniel McKiernan
Publisher:
ISBN:
Category :
Languages : en
Pages : 269
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Author: Michel Deville
Publisher: Springer Science & Business Media
ISBN: 3322898385
Category : Technology & Engineering
Languages : en
Pages : 406
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Der Sammelband enthält Beiträge einer Tagung über die Simulation von dreidimensionalen Flüssigkeiten. Sie geben einen Überblick über den Stand des Wissens auf dem Gebiet der numerischen Simulation der Turbulenz, angewandt auf eine weite Spanne von Problemen wie Aerodynamik, Nicht-Newtonsche Flüssigkeiten, Konvektion.This volume contains the material presented at the IMACS-COST Conference on CFD, Three-Dimensional Complex Flows, held in Lausanne (Switzerland), September 13 - 15, 1995. It gives an overview of the current state of numerical simulation and turbulence modelling applied to a wide range of fluid flow problems such as an example aerodynamics, non-Newtonian flows, transition, thermal convection.
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Category : Power resources
Languages : en
Pages : 822
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Author:
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Category : Mechanics, Applied
Languages : en
Pages : 1096
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Author: S. Y. Shim
Publisher:
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Category :
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
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