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Velocity and Turbulence Measurements in the Flow Downstream of Flow Conditioners

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Advances in Fluid Mechanics and Turbomachinery

Abstract

Hot-wire anemometry is used for measuring the flow field downstream of 3 different types of flow conditioners that are exposed to pipe flow disturbed by a 90° out-of-plane double bend. This disturbance causes asymmetry of the velocity profile and swirl.

While the swirl is found to be removed completely, the measured profiles of axial mean velocity and its turbulent fluctuactions re-develop in axial direction according to different laws. The conditioners show different efficiencies in re-developing the flow. It is apparent that the most important processes determining the efficiency of the conditioner take place in its near field which ends at a distance of about 3 or 4 pipe diameters downstream.

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References

  • Akashi, K.; Watanabe, H.; Koga, K. 1978: Flow rate measurement in pipe line with many bends. Mitsubishi Heavy Ind. 15 (2), 87–96.

    Google Scholar 

  • Böttcher, J.; Wedemeyer, E. 1989: The flow downstream of screens and its influence on the flow in the stagnation region of cylindrical bodies. J. Fluid Mech. 204, 501–522.

    Article  Google Scholar 

  • Bradshaw, P. 1965: The effect of wind-tunnel screens on nominally two-dimensional boundary layers. J. Fluid Mech. 22, 679–687.

    Article  Google Scholar 

  • Fiedler, H.E. 1997: A note on secondary flow in bends and bend combinations. Exp. Fluids 23, 262–264.

    Article  Google Scholar 

  • Gersten, K.; Herwig, H. 1992: Strömungsmechanik. Vieweg-Verlag, Wiesbaden.

    Google Scholar 

  • Kalkiihler, K.: Dissertation, Universität Essen.

    Google Scholar 

  • Laufer, J. 1954: The structure of turbulence in fully developed pipe flow. NACA Rep. 1174.

    Google Scholar 

  • Lawn, C. 1971: The determination of the rate of dissipation in turbulent pipe flow. J. Fluid Mech, 48, 477–505.

    Article  Google Scholar 

  • Laws, E.M. 1990: Flow conditioning - a new development. Flow Meas. Instrum. 1, 165–170.

    Article  Google Scholar 

  • Rettich, T.; Poppen, G. 1997: Ultrasonic flow measurement in turbulent pipe flow using a correlation technique. Proceed. FLUCOME ‘87, 167–170.

    Google Scholar 

  • Schlitter, T.; Merzkirch, W. 1996: PIV measurements of the time-averaged flow velocity downstream of flow conditioners in a pipeline. Flow Meas. Instrum. 7, 173–179.

    Article  Google Scholar 

  • Van Atta, C.W.; Yeh, T.T. 1972: Spectral transfer of scalar and velocity fields in heated grid turbulence. J. Fluid Mech. 58, 233–261.

    Google Scholar 

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© 1998 Springer-Verlag Berlin Heidelberg

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Merzkirch, W., Kalkühler, K. (1998). Velocity and Turbulence Measurements in the Flow Downstream of Flow Conditioners. In: Rath, H.J., Egbers, C. (eds) Advances in Fluid Mechanics and Turbomachinery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72157-1_11

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  • DOI: https://doi.org/10.1007/978-3-642-72157-1_11

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-72159-5

  • Online ISBN: 978-3-642-72157-1

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