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  •   DSpace@Işık
  • 1- Fakülteler | Faculties
  • Mühendislik Fakültesi / Faculty of Engineering
  • Makine Mühendisliği Bölümü / Department of Mechanical Engineering
  • MF - Bildiri Koleksiyonu | Makine Mühendisliği Bölümü / Department of Mechanical Engineering
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A quasi-one-dimensional bubbly cavitating flow model and comparison with experiments

Date

2011

Author

Delale, Can Fuat
Başkaya, Zafer
Pasinlioǧlu, Şenay
Ayder, Erkan
Şen, Mete

Metadata

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Citation

Delale, C. F., Başkaya, Z., Pasinlioǧlu, Ş., Ayder, E. & Şen, M. (2011). A quasi-one-dimensional bubbly cavitating flow model and comparison with experiments. Paper presented at the 9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, Vols I and II, 1017-1028.

Abstract

A bubbly cavitating flow model is constructed for unsteady quasi-one-dimensional and two-dimensional nozzle flows. In each case, the system of model equations is reduced to evolution equations for the flow velocity and bubble radius and the initial and boundary value problems of the evolution equations are formulated. The rest of the flow variables are then related to the solution of the evolution equations. Nozzle flow experiments are also carried out using water. The static wall pressures are measured at different locations of the nozzle and the partial cavitation cloud cycle is recorded using a high speed camera. Results of the numerical simulations obtained for quasi-one-dimensional nozzle flows, seem to capture the measured pressure losses due to cavitation, but they turn out to be insufficient in describing the two-dimensional cavitation cloud structures, suggesting the need for two-dimensional numerical solution of the model equations.

Source

9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, Vols I and II

URI

https://hdl.handle.net/11729/1661

Collections

  • MF - Bildiri Koleksiyonu | Makine Mühendisliği Bölümü / Department of Mechanical Engineering [39]
  • Scopus İndeksli Bildiri Koleksiyonu [439]
  • WoS İndeksli Bildiri Koleksiyonu [345]

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  • Shocks in quasi-one-dimensional bubbly cavitating nozzle flows 

    Delale, Can Fuat; Schnerr, Giinter H.; Pasinlioǧlu, Şenay (Springer Berlin Heidelberg, 2013-01-01)
    Stationary and propagating shock waves in bubbly cavitating flows through quasi-one-dimensional converging-diverging nozzles are considered by employing a homogeneous bubbly liquid flow model, where the nonlinear dynamics ...
  • A novel nonreflecting boundary condition for unsteady flow 

    Zafer, Baha; Delale, Can Fuat (Wiley-Blackwell, 2014-01-10)
    A novel nonreflecting boundary condition, which converges to the specified time-dependent boundary condition within any degree of accuracy, is introduced for the numerical simulation of hyperbolic systems and validated ...
  • Semianalytical solution of unsteady quasi-one-dimensional cavitating nozzle flows 

    Delale, Can Fuat; Pasinlioǧlu, Şenay; Başkaya, Zafer; Schnerr, Günter H. (Springer, 2014-06)
    Unsteady quasi-one-dimensional bubbly cavitating nozzle flows are considered by employing a homogeneous bubbly liquid flow model, where the nonlinear dynamics of cavitating bubbles is described by a modified Rayleigh-Plesset ...



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