The intrinsic phenomena of cavitation and concentration in Riemann solutions for the isentropic two-phase model with the logarithmic equation of state

The objective of this study is to quantify the effects of humic acid solution infiltration on the transport of organochlorine pesticides (OCPs) in soil columns using a three-phase transport model. From experimental results, it is found that the dissolved organic carbon enhances the transport of OCPs in the soil columns. In the OCPs-only column, the concentration profiles of OCPs can be simulated well using a two-phase transport model with numerical method or analytical solution. In the OCPs-DOC column, the migrations of aldrin, DDT and its daughter compounds are faster than those in the OCPs-only column. The simulation with the three-phase model is more accurate than that with the two-phase model. In addition, significant decrease of the fluid pore velocities of the OCPs-DOC column was found. When DOC leachate is applied for remediation of soil or groundwater pollution, the decrease of mean pore velocities will be a crucial affecting factor.

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Investigation of two-dimensional nonstationary processes of outflow a gas-saturated liquid from axisymmetric vessels

Proceedings of the Mavlyutov Institute of Mechanics ◽

10.21662/uim2012.1.008 ◽

2012 ◽

Vol 9 (1) ◽

pp. 47-52

Author(s):

R.Kh. Bolotnova ◽

V.A. Buzina

Keyword(s):

Comparative Analysis ◽

Numerical Model ◽

Liquid Mixture ◽

Phase Model ◽

Test Problems ◽

Two Dimensional ◽

Nonstationary Processes ◽

Saturated Liquid ◽

Two Phase ◽

One Dimensional

The two-dimensional and two-phase model of the gas-liquid mixture is constructed. The validity of numerical model realization is justified by using a comparative analysis of test problems solution with one-dimensional calculations. The regularities of gas-saturated liquid outflow from axisymmetric vessels for different geometries are established.

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A Two-Phase Model Coupling Reservoir and Horizontal Well Flow Dynamics

10.2118/69570-ms ◽

2001 ◽

Cited By ~ 2

Author(s):

Ronaldo Vicente ◽

Cem Sarica ◽

Turgay Ertekin

Keyword(s):

Horizontal Well ◽

Flow Dynamics ◽

Phase Model ◽

Model Coupling ◽

Two Phase

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Numerical investigation of swirling flow and heat transfer of a nanofluid in a tube with helical ribs using a two-phase model

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-021-10661-1 ◽

2021 ◽

Author(s):

Roohollah Hosseini Monfared ◽

Mohammadreza Niknejadi ◽

Davood Toghraie ◽

Pouya Barnoon

Keyword(s):

Heat Transfer ◽

Numerical Investigation ◽

Swirling Flow ◽

Phase Model ◽

Two Phase ◽

Flow And Heat Transfer

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Analysis of Single- and Two-Phase Flows in Turbopump Inducers

Journal of Engineering for Power ◽

10.1115/1.3616742 ◽

1967 ◽

Vol 89 (4) ◽

pp. 577-586 ◽

Cited By ~ 22

Author(s):

P. Cooper

Keyword(s):

Equation Of State ◽

Flow Field ◽

Thermal Effects ◽

Single Phase ◽

Fluid Pressure ◽

Three Dimensional ◽

Pressure Rise ◽

Recent Theory ◽

Two Phase ◽

Overall Efficiency

A model is developed for analytically determining pump inducer performance in both the single-phase and cavitating flow regimes. An equation of state for vaporizing flow is used in an approximate, three-dimensional analysis of the flow field. The method accounts for losses and yields internal distributions of fluid pressure, velocity, and density together with the resulting overall efficiency and pressure rise. The results of calculated performance of two sample inducers are presented. Comparison with recent theory for fluid thermal effects on suction head requirements is made with the aid of a resulting dimensionless vaporization parameter.

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