The Experts below are selected from a list of 1008 Experts worldwide ranked by ideXlab platform
Shobha Sood - One of the best experts on this subject based on the ideXlab platform.
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Transient free convection flow with temperature dependent viscosity in a fluid saturated porous medium
International Journal of Engineering Science, 1992Co-Authors: K.n. Mehta, Shobha SoodAbstract:Abstract The effect of temperature dependent viscosity on the heat transfer rate for a transient free convection flow along a non-isothermal vertical surface is studied employing Karman-Pohlhausen integral method. It is observed that a decrease in viscosity increases the heat transfer rate and reduces the time to reach steady state.
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Transient free convective flow about a non-isothermal vertical flat plate immersed in a saturated inhomogeneous porous medium
International Communications in Heat and Mass Transfer, 1992Co-Authors: K.n. Mehta, Shobha SoodAbstract:Abstract An analysis based on Karman-Pohlhausen integral method is carried out to study the problem of transient free convection flow about a non-isothermal vertical flat plate immersed in a fluid saturated porous medium of variable permeability. Numerical results are presented for heat transfer rate and shear stress at the wall. It is found that the time required to reach the steady state at any location on the plate increases with decrease in the permeability of the porous medium. It is also noticed that an increase in permeability results in higher rate of heat transfer and shear stress at the wall.
K.n. Mehta - One of the best experts on this subject based on the ideXlab platform.
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Buoyancy-induced flow of non-newtonian fluids in a porous medium past a vertical flat plate with nonuniform surface heat flux
International Journal of Engineering Science, 1994Co-Authors: K.n. Mehta, K.narasimha RaoAbstract:Abstract Steady buoyancy-induced flow of a non-Newtonian fluid in a porous medium bounded by a vertical flat plate with prescribed variable wall heat flux is investigated analytically by Karman-Pohlhausen integral method and numerically by similarity method. The results for excess surface temperature obtained from the two methods are found to be in good agreement for all values of power law indices for wall heat flux and non-Newtonian fluid.
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Transient free convection flow with temperature dependent viscosity in a fluid saturated porous medium
International Journal of Engineering Science, 1992Co-Authors: K.n. Mehta, Shobha SoodAbstract:Abstract The effect of temperature dependent viscosity on the heat transfer rate for a transient free convection flow along a non-isothermal vertical surface is studied employing Karman-Pohlhausen integral method. It is observed that a decrease in viscosity increases the heat transfer rate and reduces the time to reach steady state.
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Transient free convective flow about a non-isothermal vertical flat plate immersed in a saturated inhomogeneous porous medium
International Communications in Heat and Mass Transfer, 1992Co-Authors: K.n. Mehta, Shobha SoodAbstract:Abstract An analysis based on Karman-Pohlhausen integral method is carried out to study the problem of transient free convection flow about a non-isothermal vertical flat plate immersed in a fluid saturated porous medium of variable permeability. Numerical results are presented for heat transfer rate and shear stress at the wall. It is found that the time required to reach the steady state at any location on the plate increases with decrease in the permeability of the porous medium. It is also noticed that an increase in permeability results in higher rate of heat transfer and shear stress at the wall.
Ioan Pop - One of the best experts on this subject based on the ideXlab platform.
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Transient conjugate free convection from a vertical flat plate in a porous medium subjected to a sudden change in surface heat flux
International Journal of Engineering Science, 1998Co-Authors: Jian Jun Shu, Ioan PopAbstract:Abstract The paper presents a theoretical study using Karman–Pohlhausen method for describing the transient heat exchange between the boundary-layer free convection and a vertical flat plate embedded in a porous medium. The unsteady behaviour is developed after generation of an impulsive heat flux step at the right-hand side of the plate. Two cases are considered according to whether the plate has a finite thickness or has no thickness. The time and space evolution of the interface temperature is evidenced.
Owen I Corrigan - One of the best experts on this subject based on the ideXlab platform.
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An Analysis of Drug Dissolution Rates in the USP 24 Type 2 Apparatus
PAMM, 2009Co-Authors: David Mcdonnell, Brendan Redmond, Anne Marie Healy, Deirdre M. D’arcy, Owen I CorriganAbstract:This paper applies boundary layer theory to the process of drug dissolution in the USP 24, Type 2 Apparatus. The mass transfer rate from the top flat surface of a compact in various positions within the device is evaluated by means of a Pohlhausen integral method. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
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A Pohlhausen solution for the mass flux from a multi-layered compact in the USP drug dissolution apparatus
Simulation Modelling Practice and Theory, 2004Co-Authors: Martin Crane, Lawrence J. Crane, K. M. Gallagher, Owen I Corrigan, Anne Marie Healy, L. G. MccarthyAbstract:Abstract The analytical simulation of the dissolution of drug-containing compacts in a stirred non-reactive medium in the United States Pharmacopeia (USP) drug dissolution apparatus is presented. This is of interest to the design of drug delivery systems in which the goal is to design single and multi-layered compacts which release the drug according to certain desired release profiles. A Pohlhausen solution of the concentration boundary layer equations is presented and results are compared to experimental measurements. Good agreement with experiment is achieved for single component and multi-component layered compacts.
Anne Marie Healy - One of the best experts on this subject based on the ideXlab platform.
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An Analysis of Drug Dissolution Rates in the USP 24 Type 2 Apparatus
PAMM, 2009Co-Authors: David Mcdonnell, Brendan Redmond, Anne Marie Healy, Deirdre M. D’arcy, Owen I CorriganAbstract:This paper applies boundary layer theory to the process of drug dissolution in the USP 24, Type 2 Apparatus. The mass transfer rate from the top flat surface of a compact in various positions within the device is evaluated by means of a Pohlhausen integral method. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
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A Pohlhausen solution for the mass flux from a multi-layered compact in the USP drug dissolution apparatus
Simulation Modelling Practice and Theory, 2004Co-Authors: Martin Crane, Lawrence J. Crane, K. M. Gallagher, Owen I Corrigan, Anne Marie Healy, L. G. MccarthyAbstract:Abstract The analytical simulation of the dissolution of drug-containing compacts in a stirred non-reactive medium in the United States Pharmacopeia (USP) drug dissolution apparatus is presented. This is of interest to the design of drug delivery systems in which the goal is to design single and multi-layered compacts which release the drug according to certain desired release profiles. A Pohlhausen solution of the concentration boundary layer equations is presented and results are compared to experimental measurements. Good agreement with experiment is achieved for single component and multi-component layered compacts.