A superelement-based method for computing unsteady three-dimensional potential flows in hydraulic turbomachines [PDF]
, 1999 A numerical method is presented for the computation of unsteady, three-dimensional potential flows in hydraulic pumps and turbines. The superelement method has been extended in order to eliminate slave degrees of freedom not only from the governing ...
Esch, B.P.M. van +2 more
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Fractal model and Lattice Boltzmann Method for Characterization of Non-Darcy Flow in Rough Fractures. [PDF]
, 2017 The irregular morphology of single rock fracture significantly influences subsurface fluid flow and gives rise to a complex and unsteady flow state that typically cannot be appropriately described using simple laws.
Chang, Chun +4 more
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LCS Tool : A Computational Platform for Lagrangian Coherent Structures [PDF]
, 2014 We give an algorithmic introduction to Lagrangian coherent structures (LCSs) using a newly developed computational engine, LCS Tool. LCSs are most repelling, attracting and shearing material lines that form the centerpieces of observed tracer patterns in
Haller, G., Huhn, F., Onu, K.
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Geometry of unsteady fluid transport during fluid–structure interactions [PDF]
, 2007 We describe the application of tools from dynamical systems to define and quantify the unsteady fluid transport that occurs during fluid–structure interactions and in unsteady recirculating flows.
Dabiri, John O. +3 more
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Unsteady cfd analysis of erosion mechanism in the coolant channels of a rotating gas turbine blade [PDF]
, 2015 The two-phase flow in a rotating wedge mimicking the final portion of a blade turbine internal cooling channel is here presented and discussed focusing on unsteady motion and erosion mechanisms.
Anielli, Davide +4 more
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A numerical and experimental analysis of flow in a centrifugal pump [PDF]
, 2002 Computational fluid dynamics (CFD) analysis has been used to solve the unsteady three-dimensional viscous flow in the entire impeller and volute casing of a centrifugal pump.
Blanco, E. +4 more
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Small-Time Behavior of Unsteady Cavity Flows [PDF]
, 1963 A perturbation theory is applied to investigate the small-time behavior of unsteady cavity flows in which the time-dependent part of the flow may be taken as a small-time expansion superimposed on an established steady cavity flow of an ideal fluid.
Wang, D. P., Wu, T. Yao-tsu
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Unsteady Flow in Cavitating Turbopumps [PDF]
, 1975 Unsteady flow in a cavitating axial inducer pump is analyzed with the help of a simple two-dimensional cascade model. This problem was motivated by a desire to study the effect of unsteady cavitation on the so-called POGO instability in the operation of ...
Acosta, A. J., Kim, J. H.
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An experimental study of unsteady hydrodynamics of a single scull [PDF]
, 2011 The effect of hull dynamics on the hydrodynamic performance of a single scull is investigated via a combination of field trials and tank tests. The location of laminar-turbulent transition in unsteady flow is explored via several series of hot-film ...
Campbell, Ian +3 more
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A Brief Note on Linearized, Unsteady, Supercavitating Flows [PDF]
, 1979 Three different models for the unsteady fluctuations of a slender cavity in the limit of small reduced frequency are compard with the results of quasi-steady calculations.
Acosta, A. J., Furuya, O.
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