Enhancement of Laminar Mixing in Stirred Vessel using Geometrical Perturbations, A. Hidalgo‐Milln et al. / 520‐533 Journal of Applied Research and Technology 521 technique for the qualitative analysis of flow patterns and the measurement of mixing times is colorimetry, first

Get priceEffects of inner cylinder rotation on laminar flow of a Newtonian fluid through an eccentric annulus. International Journal of heat and fluid flow (2000) 21, 92 103. ESCUDER, M. P. Fully developed laminar flow of purely viscous non Newtonian liquids through annuli, including the effects of eccentricity and inner cylinder rotation.

Get priceAn orifice plate is a device used for measuring flow rate, for reducing pressure or for restricting flow (in the latter two cases it is often called a restriction plate). Either a volumetric or mass flow rate may be determined, depending on the calculation associated with the orifice plate.

Get priceHeikal and Hatton presented predictions and measurements of fully developed turbulent non-axisymmetric flow and heat transfer in an annular channel by implementing the turbulence model. They showed good agreement with experimental data, especially for

Get price184 Eccentric annular ducts oped laminar flow T~ 193 54 xvii fRe for fully devel- . 7 and Nu„2 160 162 LjL for fully de164 NuR1 for fully de164 168 fRe for fully developed 169 48 A cardioid duct 170 49 A concentric annular duct 172 50 Concentric annular ducts fRe . for fully developed laminar flow 43 An elliptical duct 44 Elliptical ducts

Get pricePadilla,E.L.M., Silveira-Neto R. C. A. (2006), Numerical Analysis of the Natural Convection in Horizontal Annuli at Low and Moderate Rayleigh Number, Engenharia Termica(Thermal Engineering), Vol. 5, pp. 58-65. Rafee, R. (2014), Entropy Generation Calculation For Laminar Fully Developed Forced Flow and Heat Transfer of Nanofluids Inside Annuli.

Get priceIn a fully developed laminar flow, the fluid appears to move by sliding laminar of infinitesimal thickness relative to adjacent layers. Depending upon the smoothness of the tube inlet and tube inside wall, fully developed laminar flow persists up to Re ≤ 2300 for a duct length L greater than the hydrodynamic entry length Lhy.

Get price(2011) Analysis of fully developed flow and heat transfer in a vertical channel with prescribed wall heat fluxes by the homotopy analysis method. International Journal for

Get priceNUMERICAL STUDY OF MIXED CONVECTION OF AIR IN THE ENTRANCE REGION OF VERTICAL CONCENTRIC ANNULUS if the free convection was aiding the forced flow. Steady-state, fully developed Coney and EL-Shaarawi 2005 used the finite difference analysis for laminar air flow in an annulus of radius ratio (0.1, 0.5, and 0.9) and Pr =0.7 with

Get priceA numerical investigation of a laminar forced convection of different working fluids including pure water, various volume concentrations of a nanofluid (Al2O3 nanoparticles dispersed in water), and a hybrid water-based suspension of Al2O3 and Cu nanoparticles (which is a new advanced nanofluid with two kinds of nanoparticle materials) in a uniformly heated circular tube is accomplished.

Get priceHeat transfer to laminar, hydrodynamically fully developed flow of a pseudoplastic fluid egg yolk in the thermal entrance of circular and annular ducts with constant wall temperatures had been experimentally investigated.

Get priceThe flow was assumed to be fully developed at the outlet section given the large value of L/D. For this reason, outflow boundary conditions ((partial a/partial n=0,) where a is any hydrodynamic quantity and n the direction normal to the surface) were prescribed at that section. We verified that this choice leads to virtually the same steady

Get priceNatural Convection in Enclosures With Through-Flow Heat Sources J. G. , K. J. Mahoney, and T. C. Bostock 215 Effect of Cap Shape on Free Convective Heat Transfer Across a Cavity P. H. Oosthuizen and J. T. Paul 221 Laminar Natural Convection Between Concentric and Eccentric Horizontal Cylinders With Mixed Boundary Conditions and Radiation

Get priceSteady fully-developed laminar flows of an incompressible fluid in an annulus of different irregular cross-sectional geometry are investigated numerically. Accurate prediction of the friction factor of these flows is obtained using the high-order finite element method.

Get priceIn this study, results from a series of numerical simulations for the fully developed laminar flow of non-Newtonian power-law fluids in concentric and eccentric annular geometries are used to investigate the effect of eccentricity, flow-behavior index, and diameter ratio (ratio of the outer diameter of the inner tubing to the inner diameter of

Get priceAnalysis of fully developed turbulent flow in an eccentric annulus. Journal of Chemical Engineering of Japan, 13(6), 445-450. Referans10 Tosun, I. (1984). Axial laminar flow in an eccentric annulus an approximate solution. AIChE journal, 30(5), 877-878. Referans11 zgen, C., Tosun, I. (1987). Application of geometric inversion to the

Get priceR.M. Manglik and P.P. Fang, Effects of eccentricity and thermal boundary conditions on laminar fully developed flow in annular ducts, International Journal of Heat and Fluid Flow, 16(4), 298-306, 1995.

Get priceIn the present study, non-Newtonian flow in annular pipe is considered. The analytical solution for velocity and temperature fields is presented while entropy generation due to fluid friction and heat transfer is formulated. The third grade fluid with constant properties is accommodated in the analysis. It is found that reducing non-Newtonian parameter increases maximum velocity magnitude and

Get priceBased on the governing equations of the unsteady flow of the power law fluid in the eccentric annuli with the inner cylinder reciprocating axially in bipolar coordinate system, the calculation formulae of normal force distribution on the wall of the inner cylinder of the power law fluid flowing in the eccentric annuli with the inner cylinder reciprocating axially in the bipolar coordinate

Get price： Axial Laminar Flow in an Eccentric Annulus an Approximate Solution INTRODUCTION While the problem of fluid flow in a concentric annulus has received much attention in the past, only in the last two decades an interest has started to develop for the same problem in an ec- centric annulus. Redberger and Charles (1962), using a finite- difference method, calculated the volumetric

Get pricesolved the Poisson equation that governs in the eccentric core flow model with a Fourier series in bipolar coordinates. However, he did not use his solution to evaluate the friction factor or hold-up ratio. Huang, Christodoulou and Joseph (1993) studied laminar and turbulent core-annular flow to assess the effects of eccentricity and the volume

Get priceEscudier, M.P, Oliveira, P.J., Pinho, F.T. 2001. Fully Developed Laminar Flow Of Purely Viscous Non-Newtonian Liquids Through Annuli, Including Of Eccentricity And Inner-Cylinder Rotation. Heat and Fluid Flow 23 (2001) 52-73.

Get priceM.M. Awad and Y.S. Muzychka, "Bounds on Two Phase Frictional Pressure Gradient and Void Fraction in Circular Pipes", Advances in Mechanical Engineering, 2014. M. Ghobadi and Y.S. Muzychka, "Fully Developed Heat Transfer in Mini-Scale Coiled Tubing for Constant Wall Conditions", International Journal of Heat and Mass Transfer

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