single and two phase flow

... Trang 1 TWO PHASE FLOW, PHASE CHANGE AND NUMERICAL MODELING Edited by Amimul Ahsan Trang 2Two Phase Flow, Phase Change and Numerical Modeling Edited by Amimul ... 2.2 Boundary and initial conditions for heat equation Trang 18Two Phase Flow, Phase Change and Numerical Modeling - phase 1, for 0 t t≤ < top; - phase 2, for ttop≤ <t tvap; - phase 3, for ... radiation and convection The Trang 16Two Phase Flow, Phase Change and Numerical Modeling 4 proposed method solves simultaneously the heat equation for the three phases (solid, liquid and vapor),

Ngày tải lên: 19/06/2014, 12:20

... #21681022; PI: YN) and the Japan Nuclear Energy Safety [...]... process for large Archimedes number and inlet enthalpy flow rate 550 Two Phase Flow, Phase Change and Numerical ... tank and collided with a plate at which the sub-cooled state was released 552 Two Phase Flow, Phase Change and Numerical Modeling The flow rates of the glycol solution and ... 3.5, 3.9 and 4.2 s Two Phase Flow, Phase Change and Numerical Modeling 534 Fig. 9 shows the volume fraction, F . In this figure, change of free surface interface between gas and PCM are

Ngày tải lên: 19/06/2014, 12:20

... the design and installation of such systems. The performances of two types of TES, which use ice and paraffin waxes, were analyzed. Ice storage systems Two Phase Flow, Phase Change and Numerical ... (Model 200 5) 578 Two Phase Flow, Phase Change and Numerical Modeling Figures 14 and 15 show comparisons of CO2 temperature and pressure between simulations and the well logging ... bottom hole, is equal to radial water flow rate in the reservoir [Michael et al. (2008) and Sasaki & Akibayashi (1999)], Two Phase Flow, Phase Change and Numerical Modeling 566 0 (0)

Ngày tải lên: 19/06/2014, 12:20

... conditions and on the other hand 410 22 Two Phase Flow, Phase Change and Numerical Modeling Will-be-set-by-IN-TECH the measurements take a long time, allowing to the convection and ... and nanoparticle materials at room temperature Therefore, the thermal conductivities of fluids 420 Two Phase Flow, Phase Change and Numerical Modeling that... 416 28 Two Phase ... slow and the solution is stable over time. 396 Two Phase Flow, Phase Change and Numerical Modeling [...]... of this technique for the thermal characterization of nanofluids because on the one hand

Ngày tải lên: 26/06/2014, 23:20

... shortage of the single-phase model Recently, some numericalstudies based on the VOF-based two-phase flow model for the simulation ofwater wave motions have been reported Hieu and Tanimoto (2002) ... aVOF-based two-phase flow model to study wave transmission over a submergedobstacle Karim et al (2003) developed a VOF-based two-phase flow model forwave interactions with porous structures and studied ... by Sakakiyama and Kajima (1992) are used as the governing equations for the phase flow model of water and air:
Dzw
Rz
gvg þ qw, ð3Þwhere t is the time, x and z the horizontal and vertical coordinates,

Ngày tải lên: 16/12/2017, 10:41

... and a fraction y of base dams are born in the nucleus The total proportions of males and females selected are denoted a and b respectively, and generation length is assumed equal in nucleus and ... as in figures 2 and 3 of JAMES (1977). B Design of nucleus systems with two-stage selection on individual performance For both, the two-stage selection of base females and the two-stage selection ... examples of two-stage selection on individual performance. Results for two-stage selection of base females are shown in figure 5 and results ot two-stage selection of males in table 1 The standard

Ngày tải lên: 09/08/2014, 22:23

... fluid The flow patterns such as Trang 34Liquid Fig 2.1 Capillary slug flow [27] dispersed flow (bubble flow, mist flow), annular flow, churn flow, and wavy flow as well as capillary slug flow are ... OCHP based on the separated flow model with two liquid slugs and three vapor plugs The governing equations were solved to predict the behaviors of the two-phase flow in two models From the analysis ... and 5mm inner diameters) were used and the working fluids were water and R-141b They concluded that as the tube diameter was increased, the flow pattern changed from slug flow to churn flow and

Ngày tải lên: 31/01/2021, 23:05

... Wang et al 2005) Jessen and Orr (2004), LaForce and Johns (2005) and Seto et al (2007) considered single-phase fluid injection into a system that initially contained two phases to model gas injection ... between phase behavior and multiphase flow Application of this technique to analyzing injection processes has led to improved understanding of the physics of the recovery mechanism (Larson and Hirasaki ... LaForce and Jessen 2007) Although two-phase injection compositions have not been thoroughly investigated in gas displacements, they have been explored for immiscible three-phase flow (Falls and Schulte

Ngày tải lên: 19/10/2022, 01:23

... j and a corresponding pressure dropP. We choose a randomly positioned sub-network as shown in Fig.3 The network consists ofΛ×Λ links We “lift” the sub-network out of the complete network and ... random numbers in the interval[0.1l, 0.4l] We set l= 1mm We neglect gravitational effects Fluid flow through each link in the network is modeled using the Washburn equation two pressures p1and ... Mechanics of Immiscible Two-Phase Flow radius Suppose that the capillary tube has a length L and a radius that varies as r = r0/[1 − a cos 2πx/l] where l  L, a is an amplitude and r0is the average

Ngày tải lên: 19/11/2022, 11:38

... Article Subsolutions of Elliptic Operators in Divergence Form and Application to Two-Phase Free Boundary Problems Fausto Ferrari and Sandro Salsa Received 29 May 2006; Accepted 10 September 2006 ... use, distribution,and reproduction in any medium, provided the original work is properly cited 1 Introduction and main results In the study of the regularity of two-phase elliptic and parabolic problems, ... η0,r0≤(1/3)η10/(1+a), andρ = η0/3 It follows that 2D n z(y) ≤ D n w r(y) ≤3  The following two lemmas are similar to [5, Lemmas 2 and 3], respectively Lemma 2.3 Let η0> 0 be fixed and w and z as in

Ngày tải lên: 22/06/2014, 22:20

... pressure in the outer west and east openings and outflow of the wind catcher has led internal flow drawn out In order to balance the volume of incoming and outgoing flow, outflow is drawn through ... mention that the two-vortex flow is in the upper and lower of internal space of model which is obtained from a combination of inflow of southern openings and outflow of wind catcher and other openings ... Within the model, the vortex flow is created has occurred under the influence of the end of the outflow channel and outflow of both Eastern and Western openings and inflow of Southern opening This

Ngày tải lên: 09/09/2015, 10:32

... plate temperature and inlet velocity 33 Chapter Fundamentals of Single and Two- phase IJHT Chapter Fundamentals of Single and Two- phase IJHT Impinging jet heat transfer is one of the flow configurations ... ……………………………………………… …………21 2.5 Two- phase IJHT: Experimental Investigation……………………………… ………23 2.6 Two- phase IJHT: Numerical Investigation………………………………… ………27 Chapter Fundamentals of Single and Two- phase IJHT…………………… ... Visualizations of the single and two- phase heat transfer for the +45° inclined impingement …………………………………………………………………………….151 Fig 9.12 Visualizations of the single and two- phase heat transfer for...

Ngày tải lên: 14/09/2015, 13:31

... junction between two tubes; the coordinates I and K indicate the direction of flow: incoming and destination, respectively The values of J(I,K) are: 38 Two Phase Flow, Phase Change and Numerical ... ou = ( Pr )in − ( ΔPr ) l (2a) 34 Two Phase Flow, Phase Change and Numerical Modeling (P ) r ou = ( Pr )in − ( ΔPr )b (2b) For single phase, subcooled liquid and superheated vapour, the Darcy-Weisbach ... Anlytical and Explicit and Implicit Methods of Solving One- 26 Two Phase Flow, Phase Change and Numerical Modeling Dimensional Transient Heat Conduction Problems WSEAS Transactions on Heat and Mass...

Ngày tải lên: 19/06/2014, 12:20

... 52 Two Phase Flow, Phase Change and Numerical Modeling increasingly cold air flowing across the coil In (Fig.19) and considering a representative circuit, the temperature distribution for CO2 and ... conditions on the water 62 Two Phase Flow, Phase Change and Numerical Modeling and refrigerant sides, in order to effectively shorten or reduce the time and cost in the development and design of this ... [W/m2K], di and are, respectively, the inside and outside diameters of tubes 68 Two Phase Flow, Phase Change and Numerical Modeling [m], km is the thermal conductivity [W/mK], Rfi and Rfo are...

Ngày tải lên: 19/06/2014, 12:20

... 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 and ... weaker vortex flow Figure 11 shows density when VΘ = 1000 m/s is constant and VΘ is 200, 500 and 1000 m/s According to this figure, if the velocity of 90 Two Phase Flow, Phase Change and Numerical ... refrigerant outlet temperature, and (c) heat transfer rate 81 82 Two Phase Flow, Phase Change and Numerical Modeling References Allen, B., & Gosselin, L (2008) Optimal geometry and flow arrangement for...

Ngày tải lên: 19/06/2014, 12:20

... in order to understand the internal stress distribution in the solidifying steel strand below the mold The need for data with respect to the 122 Two Phase Flow, Phase Change and Numerical Modeling ... 134 Two Phase Flow, Phase Change and Numerical Modeling Fig presents the temperature distribution till solidus temperature inside a slab at two different positions in the caster; parts (a) and ... casts slab sizes of 130x390 and 130x360 (mm x mm) two chemical analyses for steel were examined depending on the selected carbon 136 Two Phase Flow, Phase Change and Numerical Modeling concentrations,...

Ngày tải lên: 19/06/2014, 12:20

... 140 Two Phase Flow, Phase Change and Numerical Modeling Fig 13 presents the temperature distribution till solidus temperature inside a slab at two different positions in the caster; parts (a) and ... Ironmaking and Steelmaking Vol 13, No 3, pp 138-153 148 Two Phase Flow, Phase Change and Numerical Modeling Won, Y-M, Kim, K-H, Yeo, T-J, & Oh, K (1998) Effect of Cooling Rate on ZST, LIT and ZDT ... rad (26) 162 Two Phase Flow, Phase Change and Numerical Modeling where the dimensionless co-ordinate ≤ χ ≡ x/xrad ≤ and radiation level γrad ≡ R0xrad /qheat are introduced For δ/xrad and γrad large...

Ngày tải lên: 19/06/2014, 12:20

... Nematollahi and Nazifi, 2007; Rodriguez and El-Genk, 2008a, b, c, and d; Rodriguez, Domino, and El-Genk, 2010; Rodriguez and El-Genk, 2010a and b; Rodriguez and El-Genk, 2011) There are many devices and ... azimuthal, (a) and (b), and axial, (c) and (d), velocity profiles for S2 configuration Q ≈ 100 l/h for (a) and (c); and Q ≈ 270 l/h for (b) and (d) The circles indicate mean velocity values and the error ... and Γ ω are the effective diffusivity of k and ω, respectively; Gk and Gω are the generation of k and ω, respectively, due to mean velocity gradients; and Yk and Yω are the dissipation of k and...

Ngày tải lên: 19/06/2014, 12:20

... Applications for Enhanced Heat Transfer and Flow Mixing Fig 12 Impact of Re and θ on Azimuthal Velocity Field 203 204 Two Phase Flow, Phase Change and Numerical Modeling The single- jet computation domain ... 9th Ed., C Griffin and Co., London, UK 216 Two Phase Flow, Phase Change and Numerical Modeling Rivero, A., Ferre, J A., and Giralt, F (2001) Organized Motions in a Jet in Crossflow, J Fluid Mech., ... 214 Two Phase Flow, Phase Change and Numerical Modeling References Aboelkassem, Y., Vatistas, G H., and Esmail, N (2005) Viscous Dissipation of Rankine Vortex Profile in Zero Meridional Flow, ...

Ngày tải lên: 19/06/2014, 12:20

... fluence 232 16 Two Phase Flow, Phase Change and Numerical Modeling Will-be-set-by-IN-TECH On Fig 5, green and orange dash lines respectively correspond to fluence F1ω = 19 J/cm2 and fluence F1ω ... pattern nearly 236 20 Two Phase Flow, Phase Change and Numerical Modeling Will-be-set-by-IN-TECH remains unchanged and the slopes s as well Also these observations not dismiss that two populations ... during the picosecond time period 246 Two Phase Flow, Phase Change and Numerical Modeling Fig The temporal evolution of electron and phonon temperature fields in two layer Au/Ag film assembly (A)...

Ngày tải lên: 19/06/2014, 12:20