two phase flow in porous media

... to Transport in Porous Media Abstract This paper presents the first instance of a double contact discontinuity in analytical solutions for multicomponent, two-phase flow in porous media We use ... multiphase flow, this kind of discontinuity Trang 3has first appeared in the solution for a two-component, two-phase flow for a polymer flooding model (Johansen and Winther 1988) For a linearly ... tie-line path to the nontie-line path A nontie-line rarefaktion connects the initial tie line to the injection tie line (B to C1) At point C1, the landing point of the nontie-line path on the injection

Ngày tải lên: 19/10/2022, 01:23

... stepping, seeAker et al.(1998),Knudsen et al.(2002) In the next Sect.3, we start by explaining the statistical mechanics approach to immiscible two-phase flow in porous media that lies behind ... the non-wetting toward the wetting fluid Through the link, a flow q passes We indicate the two node pressures p1and p2at the end of the link q 0 p The network contains L × L links All links have ... implementing bi-periodic boundary conditions The configurations of fluid interfaces in the sub-network remain unchanged at this point We calculate the flow rate in the sub-network Λ  i j in sub network

Ngày tải lên: 19/11/2022, 11:38

... of Two-Phase Flow Processes in Porous Media Hartmut Eichel, Rainer Heling, Insa Neuweiler and Olaf A Cripka 237–257 Trang 7Multiphase flow in porous media is an extremely important process in ... 2UPSCALING MULTIPHASE FLOW IN POROUS MEDIATrang 3Upscaling Multiphase FlowUtrecht University, The Netherlands Part of this volume has been published in the Journal Transport in Porous Media vol ... the more challenging case of two-phase flow, albeit with Newtonian fluids Trang 37PREDICTIVE PORE-SCALE MODELING OF SINGLE AND MULTIPHASE FLOW 314 Two-Phase Flow Two and three-phase relative permeabilities

Ngày tải lên: 05/05/2018, 14:19

... understanding flow in porous media In two-dimensional systems it is not possible for even two phases to percolate simultaneously (in a grainsupported medium there is no flow or diffusion!), while in three ... understanding of hysteresis in wetting and drainage developed in the 1980s is lacking today, at least if one inquires into the usual literature In addition, the summaries of the work done during that ... according to prescribed initial and/or boundary conditions In spite of continuing improvement in numerical results, this avenue of research has not led to the hoped-for increase in understanding In

Ngày tải lên: 07/09/2020, 11:08

... 21Hemispherical flow Trang 22Number of flowing fluids in the reservoir There are generally three cases of flowing system: (1) single-phase flow (oil, water, or gas); (2) two-phase flow (oil–water, ... many engineering purposes, the actual flow geometry may be represented by one of the following flow geometries: Trang 17Radial flow Trang 18Linear flow Trang 19Linear flow Trang 20Spherical flow ... These include: ● linear flow of incompressible fluids; ● linear flow of slightly compressible fluids; ● linear flow of compressible fluids; ● radial flow of incompressible fluids; ● radial flow

Ngày tải lên: 07/04/2023, 06:26

... of Engineering Numerical Analysis of Two-Phase Flow Characteristics in the Oscillating Capillary Tube Heat Pipe by Ngoc Hung Bui Department of Refrigeration and Air Conditioning Engineering ... tension, the working fluid will arrange in slug-train units in the OCHP The heat input, which is the driving force, increases the pressure of the vapor plugs in the evaporating section In turn, this ... Doctor of Engineering in the Department of Refrigeration and Air-Conditioning Engineering, Graduate School, Pukyong National University Trang 3June 2003 Numerical Analysis of Two-phase Flow Characteristics

Ngày tải lên: 31/01/2021, 23:05

... and interdependence of system components in a Trang 15Stochastic Dynamics - Modeling Solute Transport in Porous Media manner to include the "noise" within the system further explaining ... index to allow direct optical probing at any point within the porous system Fluid velocity was measured by introducing fluorescent micro-spheres of 6.5 btm diameter into the flow, and measuring ... scientists, engineers and research students who are interested in pursuing a stochastic dynamical approach in modeling natural and biological systems Often in similar books explaining the applications

Ngày tải lên: 22/03/2014, 15:20

... smaller the better; ↑- increase with increase in parameter; ↓- decrease with increase in parameter; *-within the linear property increase Symbols “x”, “▲”, “○”, and “◘”indicating no, weak, medium, ... methods, causing the temperature-induced agglomeration [76] Further studies are needed in this area 444 Two Phase Flow, Phase Change and Numerical Modeling 5 Efficient nanofluid by design In light ... conductivity (35) 460 Two Phase Flow, Phase Change and Numerical Modeling Let us apply the previous formalism for the heat transfer in nanofluids, assuming the following: (i) there are two different

Ngày tải lên: 19/06/2014, 12:20

... turbulent flow field for the single-phase flow in a circular tube with constant wall temperature can be determined by solving the volume-averaged fluid equations, as follows: P, τ and B having the ... the addition of particles in a base fluid produces a great increase in the heat transfer (≈50%) Intensification of heat transfer increases proportionally with increasing of volume concentration ... nanofluids, also parietal heat transfer increases with increasing the primary agent temperature and implicitly with increasing of volume concentration In Figure 12 is represented the variation

Ngày tải lên: 19/06/2014, 12:20

... ; depending on the form of μ (c)* the fluid can be either a chemically-thinning or chemically-thickening fluid, implying a decrease or an increase in the viscosity, respectively, as c increases ... divided indefinitely without losing any of its defining properties A distributed volume,Vt= ν dVand a distributed mass, M= ρ ν s dV can be defined, where the function νis an independent kinematical ... considered 7 Flow down an inclined plane Flow down an inclined plane occurs naturally as in the cases of avalanches and mudslides; it is also used for transporting and drying of bulk solids (such

Ngày tải lên: 19/06/2014, 12:20

... existing experiment shows reasonable agreement from the mathematical as well as from the physical points of view. Discontinuity at the phase interface is inherently included in the governing ... inlet enthalpy flow rate is analyzed in this... shown in Figure 13 and includes a sub-cooling heat exchanger, which cools water to 2ºC below the freezing point The sub-cooled water was injected ... energy for cooling during the day, were examined (Barnard and Setterwall 2003, Lin et al 2003 and Feldman et 556 Two Phase Flow, Phase Change and Numerical Modeling al 199 5)

Ngày tải lên: 19/06/2014, 12:20

... following data were obtained www.intechopen.com Steady State Compressible Fluid Flow in Porous Media 487 Flow rate (Q) = 1,000cc of air in 500sec Pressure down stream of core (p2) = atm absolute Flowing ... (Ohirhian, 2008) to be an incomplete expression for the lost head during laminar (viscous) flow in porous media and the equation of continuity for a real gas The Darcy law as presented in the API code ... increasing length of porous media The compressibility of a fluid (C f) is defined as: www.intechopen.com Steady State Compressible Fluid Flow in Porous Media  C f 473 d  dp (13) Combination of equations...

Ngày tải lên: 27/07/2014, 23:44

... and flow boiling Pool boiling is boiling on a heating surface submerged in a pool of initially quiescent liquid Flow boiling is boiling in a flowing stream of fluid, where the heating surface ... T WO -PHASE FLOW 119 3.1 Introduction 119 3.2 Flow Patterns in Adiabatic and Diabatic Flows 120 2.5 3.2.1 Flow Patterns in Adiabatic Flow 120 3.2.2 Flow Pattern Transitions in Adiabatic Flow 128 ... TWO- PHASE FLOW described in terms of two- phase boundary-layer flow The macroscopic effect of a two- phase flow on the frictional pressure drop still relies on empirical correlations FLOW BOILIN...

Ngày tải lên: 02/04/2014, 15:22

... August, 2011 Printed in Croatia A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Two Phase Flow, Phase Change ... Chen, Guangqing Du, Qing Yang, Jinhai Si and Hun Hou Part Two Phase Flow 255 Chapter 12 On Density Wave Instability Phenomena – Modelling and Experimental Investigation 257 Davide Papini, Antonio ... (solid, liquid and vapor) being taken into account Similar results were obtained for the other two phases, in a similar way, accordingly to their influencing parameters The initial conditions are:...

Ngày tải lên: 19/06/2014, 12:20

... and varies 28 Two Phase Flow, Phase Change and Numerical Modeling with flow regimes occurring along the tube passes Flow on the secondary surfaces (outside of tubes and fins) in cooling, refrigeration ... channels formed by tubes and adjoining fins, imposing an increasingly higher resistance to air flow This effect is marked at the leading edge, causing a rapid decline in heat transfer and early blockage ... insulated in order to reduce infiltration of outside air and moisture Fig Flow chart of the computing procedure for FMT 40 Two Phase Flow, Phase Change and Numerical Modeling Means of adjusting...

Ngày tải lên: 19/06/2014, 12:20

... diameter 4.3.2 Effect of fin spacing Fin spacing was shown to generally enhance heat transfer in dry coils and condensers Increasing the fin number reduces fin spacing, increases the Reynolds number ... many, including flow arrangement, tube size, geometric configuration, and inlet/outlet conditions on the water 62 Two Phase Flow, Phase Change and Numerical Modeling and refrigerant sides, in order ... kJ/kg]), resulting in the lowest exit quality (x=74.5%) Its lowest pressure drop however allows increasing the mass flow rate with a corresponding increase in heat transfer or decreasing tube diameter...

Ngày tải lên: 19/06/2014, 12:20

... heat sink operating temperature is obtained and maintained by adjusting the cooling water flow to the aluminum heat sink Once the heat sink temperature is obtained, the 102 Two Phase Flow, Phase ... oulet cylinder are 300 and 350 K Fig Flow filed of single-vortex Flow when teperature of the inlet cylinder and the teperature of oulet cylinder are 350 and 300 K 87 88 Two Phase Flow, Phase Change ... type of flow patterns, as Couette-Taylor flow or single and double vortex flow, can be created in a wide 92 Two Phase Flow, Phase Change and Numerical Modeling range of speed of rotation of inner...

Ngày tải lên: 19/06/2014, 12:20

... calculated using the following equation: Ee = TS − TP × 10 TS − 100 in MPa (48) 132 Two Phase Flow, Phase Change and Numerical Modeling Consequently, the bulging strain is computed by equation (20) in ... Fig In part (a), bulging strain (LHS axis), and misalignment and unbending strains (RHS axis) are illustrated Bulging strain is depicted by line (1); lines (2) and (3) depict the strains resulting ... the strain from the first unbending point The LHS axis in part (b) of Fig represents the total strains as computed by the two methods for bulging strain and illustrated by lines and In this case,...

Ngày tải lên: 19/06/2014, 12:20

... Hunching by Unsteady Bulging during Thin Slab Casting ISIJ International, Vol 42, No 10, pp 1103-1111 Zhu, G., Wang, X., Yu, H., & Wang, W (2003) Strain in solidifying shell of continuous casting ... transport in the ETB The main line of thinking is the mitigation of drift instabilities and non-linear structures, arising on a non-linear stage of instabilities, through the shear of drift motion induced ... been put into practice by some slab casting manufacturers worldwide In this study, 146 Two Phase Flow, Phase Change and Numerical Modeling some ideas for applying static soft reduction in practice...

Ngày tải lên: 19/06/2014, 12:20

... 172 Two Phase Flow, Phase Change and Numerical Modeling Weiland, J (2000) Collective Modes in Inhomogeneous Plasma, Institute of Physics Publishing, ISBN 0-7503-0589-4-hbk, Bristol, Great Britain ... cylindrical coordinates as vθ (r) = uosin(πr) (2) 194 Two Phase Flow, Phase Change and Numerical Modeling and w z (r) = w o (3) Whereas there are about a dozen or so definitions of the swirling ... methodology results in 198 Two Phase Flow, Phase Change and Numerical Modeling significant savings in the meshing and computational effort, especially because the helicoid geometry requires finite elements...

Ngày tải lên: 19/06/2014, 12:20