scholarly journals Experiments on Anisokinetic Sampling Errors for Solid-Liquid Two Phases Flow

1970 ◽  
Vol 34 (1) ◽  
pp. 69-74,a1 ◽  
Author(s):  
Koichi Iinoya ◽  
Akihiro Yamanaka
Keyword(s):  
Sampling Errors ◽  
Two Phases ◽  
Solid Liquid ◽  
Two Phases Flow

NUMERICAL SIMULATION OF TWO-PHASES FLOW ON PUMPS INLET SYSTEM FOR SHALLOW WATER

2019 ◽  
Author(s):  
Livio Sebastián Maglione ◽  
Guillermo Muschiatto ◽  
Raúl Alberto DEAN
Keyword(s):  
Numerical Simulation ◽  
Shallow Water ◽  
Inlet System ◽  
Two Phases ◽  
Two Phases Flow

Quantitative Evaluation of the Interfacial Free Energies at A Solid-Liquid Lamellar Eutectic Interface

1981 ◽  
Vol 12 ◽  
Author(s):  
W. F. Kaukler ◽  
J. W. Rutter
Keyword(s):  
Free Energy ◽  
Solid Phase ◽  
Interfacial Free Energy ◽  
Eutectic System ◽  
Liquid Interfaces ◽  
Free Energies ◽  
Two Phases ◽  
Interfacial Free Energies ◽  
The Individual ◽  
Solid Liquid

The solid-liquid interfacial free energies of each of the individual phases comprising the eutectic system, Carbon Tetrabromide-Hexachloroethane, were measured as a function of composition using a “grain boundary groove” technique. Thermodynamic data were combined with groove shape measurements made from high resolution optical photomicrographs of the solid-liquid interfaces to give the interfacial free energy data. An interfacial free energy balance at the eutectic trijunction was performed to obtain all the forces acting on that point. The three interphase interfacial free energies at the eutectic trijunctions as well as a solid-solid phase boundary torque were evaluated.It was found that the solid-liquid interfacial free energies of the two phases of the eutectic could be evaluated from photomicrographs of growing or stationary eutectic interfaces. In addition, it was found that for a substantial range of freezing conditions the eutectic interface shape can be predicted from a knowledge of the interfacial free energies alone.

CFD Simulation and Experimental Study on Solid-Liquid Hydrocyclone

2012 ◽  
Vol 562-564 ◽  
pp. 1606-1609
Author(s):  
Si Huang ◽  
Yue Le ◽  
Luo Li
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Experimental Study ◽  
Cfd Simulation ◽  
Separation Efficiency ◽  
Test System ◽  
Equation Model ◽  
Liquid Particle ◽  
Two Phases ◽  
Solid Liquid

This paper presents a numerical simulation and experimental study on a solid-liquid hydrocyclone. In the simulation, the standard k-ε turbulence model and the zero-equation model are employed to compute the flow field of the two phases in the hydrocyclone under different conditions, such as viscosity of the liquid, particle size and flow rate. In the experiment, a hydrocyclone is manufactured and measured for the separation efficiency and pressure drop in the test system. The simulation result of hydrocyclone performance matches well with the experimental data.

Prediction of Liquid Viscosity Effect on Flow Field and Performance in a Solid-Liquid Hydrocyclone

2011 ◽  
Vol 317-319 ◽  
pp. 401-404 ◽  
Author(s):  
Ding Feng ◽  
Si Huang ◽  
Li Luo ◽  
Wei Guo Ma
Keyword(s):  
Energy Consumption ◽  
Flow Field ◽  
Convenient Method ◽  
Field Research ◽  
Liquid Viscosity ◽  
Viscosity Effect ◽  
Viscosity Increase ◽  
Two Phases ◽  
And Performance ◽  
Solid Liquid

Many factors can have effect on flow field and performance, which makes the hydrocyclone design a complex work. Liquid’s viscosity is one of these factors, but it is costly and almost impossible to investigate how the liquid viscosity influences the performance of the hydrocyclone by test or experiment. At present, CFD technique provides us a convenient method for the flow field research in the hydrocyclone. This paper, intended to explore the effect of liquid’s viscosity on the flow field and hydrocyclone’s efficiency, presents a simulation to model the flow field in the hydrocyclone by changing the viscosity of the liquid. By comparing the results of the simulation, it is found that liquid with higher viscosity can reduce the velocity of the flow because of the friction between flow and wall and the friction between the two phases. Furthermore, viscosity increase of the liquid enlarges the area of shot flow and circulating flow, which make separating efficiency decrease and energy consumption rise.

scholarly journals Modeling of Surface Structure Formation after Laser Irradiation

2011 ◽  
Vol 222 ◽  
pp. 90-93
Author(s):  
Jevgenijs Kaupuzs ◽  
Sharif E. Guseynov ◽  
Janis S. Rimshans ◽  
Artur Medvid'
Keyword(s):  
Surface Structure ◽  
Laser Irradiation ◽  
Stefan Problem ◽  
Nonlinear Differential Equations ◽  
Surface Profile ◽  
Liquid Interface ◽  
Solidification Processes ◽  
Two Phases ◽  
Solid Liquid Interface ◽  
Solid Liquid

The Stefan problem in a semi-infinite media under laser irradiation is considered. It is related to the melting and solidification processes, resulting in certain surface structure after the solidification. A simple model, as well as a more sophisticated one is proposed to describe this process. The latter model allows us to calculate the surface profile by solving a system of two nonlinear differential equations, if the shape of the solid-liquid interface is known. It has to be found as a solution of two-phases Stefan problem. The results of example calculations by the fourth-order Runge-Kutta method are presented, assuming that the solid-liquid interface has a parabolic shape. The calculated crossection of the surface structure shows a characteristic cone in the center, in agreement with experimental observations.

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