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Wyszukujesz frazę "polar fluid" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Magneto-polar fluid flow through a porous medium of variable permeability in slip flow regime
Autorzy:
Gaur, P. K.
Jha, A. K.
Sharma, R.
Powiązania:
https://bibliotekanauki.pl/articles/266273.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
magnetohydrodynamika
przepuszczalność
przenikanie ciepła
polar fluid
MHD
permeability
slip-flow
heat transfer
Opis:
A theoretical study is carried out to obtain an analytical solution of free convective heat transfer for the flow of a polar fluid through a porous medium with variable permeability bounded by a semi-infinite vertical plate in a slip flow regime. A uniform magnetic field acts perpendicular to the porous surface. The free stream velocity follows an exponentially decreasing small perturbation law. Using the approximate method the expressions for the velocity, microrotation, and temperature are obtained. Further, the results of the skin friction coefficient, the couple stress coefficient and the rate of heat transfer at the wall are presented with various values of fluid properties and flow conditions.
Źródło:
International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 323-339
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scrutinization of Joule heating and viscous dissipation on MHD flow and melting heat transfer over a stretching sheet
Autorzy:
Kumar, K. G.
Gireesha, B. J.
Manjunatha, S.
Powiązania:
https://bibliotekanauki.pl/articles/264626.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
metoda numeryczna
dyssypacja lepkości
płyn mikropolarny
Joule heating
viscous dissipation
stretching sheet
micro polar dusty fluid
numerical method
Opis:
The present paper deals with an analysis of the combined effect of Joule heating and viscous dissipation on an MHD boundary layer flow and melting heat transfer of a micro polar fluid over a stretching surface. Governing equations of the problem are transformed into a set of coupled nonlinear ordinary differential equations by applying proper transformations and then they are solved numerically using the RKF-45 method. The method is verified by a comparison with the established results with limiting solution. The influence of the various interesting parameters on the flow and heat transfer is analyzed in detail through plotted graphs.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 429-443
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polar head charge of membrane modifiers and their biological activity: the Monte Carlo simulation studies
Autorzy:
Kubica, K.
Powiązania:
https://bibliotekanauki.pl/articles/1953950.pdf
Data publikacji:
1998
Wydawca:
Politechnika Gdańska
Tematy:
Monte Carlo simulations
membrane modifiers
phospholipids
Pink model
membrane
membrane simulations
gel fluid transition
polar head charge
biological activity
Opis:
On the basis of the 10-state Pink model, the effect of the polar head charge of amphiphilic modifier molecules has been discussed. It was shown, that for small concentrations of anionic and cationic compounds inserted into a layer composed of electroneutral lipids the electrostatic interaction, in spite of the long-range character, can be limited to the nearest neighbour interaction. Computer simulation results suggest, that the gel-fluid transition temperature can be lowered or raised by a proper selection of anionic-cationic amphiphilic modifiers. Moreover, the effect of ionic strength of the membrane medium and dielectric permeability of the hydrophobic part of membrane, where a shift of the dielectric constant from 5 to 80 occurred, has been studied. It was also shown that addition of alkyl molecules to the membrane, which are the counterions of alkyl modifier molecules added earlier, almost doubles the number of incorporated membrane modifiers. Membrane permeability analysis shows that membrane permeability, at temperatures lower than the gel-fluid transition temperature, should be more related to the number of small domains (cluster area) and less to the interfacial area.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 4; 601-609
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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