A quasi-one-dimensional bubbly cavitating flow model and comparison with experiments
Küçük Resim Yok
Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
European Turbomachinery Soc-Euroturbo
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Converging-Diverging nozzle, Gas-Bubbles, Relative Motion, Liquid, Nucleation, Mixtures, Dynamics, Fission, Boundary value problems, Cavitation, Differential equations, Flow velocity, High speed cameras, Nozzles, Numerical models, Thermodynamics, Cavitating flow, Cavitation clouds, Comparison with experiments, Evolution equations, Model equations, Numerical solution, Partial cavitations, Quasi-one dimensional, Wall flow
Kaynak
9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, Vols I and II
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
Sayı
Künye
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.
