Nicht-Newtonsche Flüssigkeiten IV. Strömung nicht-Newtonscher Flüssigkeiten Ostwald-de-Waeleschen Typs in der Umgebung rotierender Drehkegel und Scheiben

Mitschka, P.; Ulbrecht, J.

doi:10.1135/cccc19652511

Cited by 61 publications

(32 citation statements)

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“…Values of F'(0) with different values of n are given by Mitschka and Ulbrecht (1965). Considering the average velocity gradient, OL in Equation (26) can be calculated as:…”

Section: The Velocity Gradient At the Surface Ismentioning

confidence: 94%

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Heat and mass transfer in non‐newtonian fluid flow with power function velocity profiles

Kawase

Ulbrecht

1983

Can J Chem Eng

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Heat and mass transfer in laminar and turbulent non‐Newtonian fluids is investigated in this work using the power function velocity profiles. Analytical solutions are presented for cases of mass transfer in laminar non‐Newtonian fluid flows, namely for a flat velocity profile (plug flow), for the case of a constant velocity gradient at the solid boundary (Couette flow), and for the velocity distribution within a laminar boundary layer on a flat plate, and these are illustrated by rotating disks and cylinders in laminar Ostwald‐de Waele fluids. Further, turbulent mass transfer processes (tubular flow, rotating disk, and rotating cylinder) in non‐Newtonian fluids (Ostwald‐de Waele fluid and drag‐reducing fluid) at low and large Schmidt numbers are also discussed using the solutions of mass transfer in flows with power function velocity profiles. Reasonable agreement is found between the predictions of this work and the available experimental data and correlations.

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“…Values of F'(0) with different values of n are given by Mitschka and Ulbrecht (1965). Considering the average velocity gradient, OL in Equation (26) can be calculated as:…”

Section: The Velocity Gradient At the Surface Ismentioning

confidence: 94%

“…The laminar boundary layer equations for non-Newtonian flow around a rotating disk were solved by Mitschka and Ulbrecht (1965). The radial velocity component is given by…”

Section: Rotating Diskmentioning

confidence: 99%

Heat and mass transfer in non‐newtonian fluid flow with power function velocity profiles

Kawase

Ulbrecht

1983

Can J Chem Eng

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“…Also, explicit solutions have been presented for generalized non-Newtonian fluids at different conditions with both mechanical and biological applications [7][8][9]. The flow of non-Newtonian power-law fluids considering the influence of a magnetic field has been studied [10][11][12] using the extensions of Karman analysis which discussed in [13,14]. MHD flows regarding power-law fluids over a rotating disk are of great impact because of the absence of the magnetic force field outside the viscous boundary layer, which means that the fluid flow only affected inside the boundary layer.…”

Section: Introductionmentioning

confidence: 99%

Non-linear heat and mass transfer in a thermal radiated MHD flow of a power-law nanofluid over a rotating disk

et al. 2019

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The steady MHD flow of a power law nanofluid due to a uniform rotation of an infinite disk is studied with heat and mass transfer. The viscous dissipation has been comprised in the energy equation. The governing PDEs are reduced to a set of ODEs; using the generalized Von Karman similarity transformations; for which finite difference numerical scheme is implemented along with the associated boundary conditions. The non-Newtonian fluid characteristics affect the fluid velocity, temperature and concentration of suspended nanoparticles. The significant effects of thermal radiation, Brownian motion and thermophoresis diffusion are involved. The skin friction coefficients in addition to the heat and mass transfer rates are defined and calculated considering the variation of all flow parameters. The present results are verified and compared with literature.

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“…In many coating applications in the polymer processing industry especially in extraction of crude oil from petroleum products however fluids used to generate damage resistant surfacing are generally non-Newtonian. Several studied have been published concerning non-Newtonian flow by Acrivos et al (1960), Mitschka (1965), Rogovskii and Gorbis (1975), Sarma and Gupta (1981) , Ma and Hwang (1990) and Andersson et al (2001). They presented a similarity solution for the power low fluid flow over a rotating disk.…”

Section: Introductionmentioning

confidence: 99%

MHD Non-Newtonian Casson Fluid Heat and Mass Transfer Flow with Exothermic/Endothermic Binary Chemical Reaction and Activation Energy

Maleque¹

2016

AJHMT

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A similarity solution of a binary chemical reaction on MHD unsteady non-Newtonian Casson fluid flow with heat and mass transfer past a flat porous plate is investigated. The effects of Casson parameter on the velocity profiles for both cooling and heating problems are studied and we also study the effects of exothermic/endothermic chemical reaction rate and Arrhenius activation energy on the temperature and concentration respectively in this paper. The governing partial differential equations are reduced to ordinary differential equations by introducing locally similarity transformation [Maleque (2010)]. Numerical solutions to the reduced non-linear similarity equations are then obtained by adopting six orderd implicit Runge-Kutta and shooting method using the Nachtsheim-Swigert iteration technique. The results of the numerical solution are then presented graphically in the form of velocity, temperature and concentration profiles. The corresponding skin friction coefficient, the Nusselt number and the Sherwood number are also calculated and displayed in table showing the effects of various parameters on them.

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Nicht-Newtonsche Flüssigkeiten IV. Strömung nicht-Newtonscher Flüssigkeiten Ostwald-de-Waeleschen Typs in der Umgebung rotierender Drehkegel und Scheiben

Cited by 61 publications

References 0 publications

Heat and mass transfer in non‐newtonian fluid flow with power function velocity profiles

Heat and mass transfer in non‐newtonian fluid flow with power function velocity profiles

Non-linear heat and mass transfer in a thermal radiated MHD flow of a power-law nanofluid over a rotating disk

MHD Non-Newtonian Casson Fluid Heat and Mass Transfer Flow with Exothermic/Endothermic Binary Chemical Reaction and Activation Energy

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