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On the accuracy of two-fluid model predictions for a particular gas-solid riser flow
(ELSEVIER SCIENCE INC, 2010)
Literature presents a huge number of different simulations of gas-solid flows in risers applying two-fluid modeling. In spite of that, the related quantitative accuracy issue remains mostly untouched. This state of affairs ...
Numerical analysis of refrigerant flow along non-adiabatic capillary tubes using a two-fluid model
(Pergamon-Elsevier B.V. Ltd, 2009-02-01)
This work presents a numerical model to simulate steady state refrigerant now along capillary tube-suction line heat exchangers. commonly used in small refrigeration systems. The flow along the straight and horizontal ...
Modeling and optimization of supercritical fluid processes
(Elsevier Science, 2008-01-20)
In this work, we discuss recent advances on thermodynamic modeling, process simulation and optimization of supercritical extraction and fractionation processes. The increasing availability of experimental data, as well as ...
A new pool boiling heat transfer correlation for wetting dielectric fluids on metal foams
(Elsevier, 2021-02-19)
Porous structures, as metal foams, can enhance the heat transfer performance. For a safe industrial application, a predictive model for both heat transfer coefficient and maximum heat flux is required. But, there is no ...
A two-phase solver for complex fluids: Studies of the Weissenberg effect
(Elsevier B.V., 2016-09-01)
In this work a new two-phase solver is presented and described, with a particular interest in the solution of highly elastic flows of viscoelastic fluids. The proposed code is based on a combination of classical Volume-of-Fluid ...
Spectrum of shallow water gravity waves generated by confined two-dimensional turbulence
(American Physical Society, 2018)
We apply Lighthill's theory of aeroacoustic sound generation to shallow water gravity waves generated by spatially confined two-dimensional turbulence. We show that the frequency spectrum of surface waves at large distances ...
Friction losses in valves and fittings for viscoplastic fluids
(Canadian Soc Chemical Engineering, 2005-04-01)
Data on pressure drop were obtained in stainless steel, sanitary fittings and valves during laminar and turbulent flow of aqueous suspensions of sucrose and bentonite. The rheological properties of these suspensions were ...
Different formulations to solve the giesekus model for flow between two parallel plates
(2021-11-01)
This work presents different formulations to obtain the solution for the Giesekus constitutive model for a flow between two parallel plates. The first one is the formulation based on work by Schleiniger, G; Weinacht, R.J., ...
Limits of validity for a semiclassical mean-field two-fluid model for Bose-Einstein condensation thermodynamics
(Elsevier B.V., 2000-10-15)
We reinvestigate the Bose-Einstein condensation (BEC) thermodynamics of a weakly interacting dilute Bose gas under the action of a trap using a semi-classical two-fluid mean-field model in order to find the domain of ...
Numerical simulation of drop impact and jet buckling problems using the eXtended Pom-Pom model
(Elsevier B.V., 2012-02-01)
This work presents numerical simulations of two fluid flow problems involving moving free surfaces: the impacting drop and fluid jet buckling. The viscoelastic model used in these simulations is the eXtended Pom-Pom (XPP) ...