Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
The theory of micro polar fluids due to Eringen is used to formulate a set of equations for the mixed convective flow and heat transfer in a vertical channel. The two boundaries of the channel are kept either at equal or at different temperatures. Through a proper choice of non-dimensional variables and parameters, the governing equations are developed and three types of thermal boundary conditions are prescribed. These thermal boundaries are isothermal-isothermal, isoflux-isothermal and isothermal-isoflux for the left-right walls of the channel. Exact analytical solutions are obtained for the velocity and temperature fields for heat generation/absorption conditions. It is found that the material and source/sink parameters have significant effects on the flow. A parametric study is conducted and the results are presented and discussed. By making the Newtonian solvent more and more micropolar, it is possible to obtain drag reduction.
Słowa kluczowe
Rocznik
Tom
Strony
141--159
Opis fizyczny
Bibliogr. 21 poz., wykr.
Twórcy
autor
autor
- Department of Mathematics, Gulbarga University Gulbarga. 585 106, Karnataka, INDIA, jc_uma11@yahoo.com
Bibliografia
- Ariman T., Turk M.A. and Sylvester N.D. (1973): Microcontinuum fluid mechanics- A review. - Int. J. Eng. Sci., vol.11, pp.905-930.
- Aung W. and Worku G. (1986): Theory of fully developed combined convection including flow reversal. - ASME J. Heat Transfer, vol.108, pp.485-488.
- Barletta A. (1999): Analysis of combined forced and free flow in a vertical channel with viscous dissipation and isothermal-isoflux boundary conditions. - ASME J. Heat Transfer, vol.121, pp.349-356.
- Barletta A. and Zanchini E. (1999): On the choice of the reference temperature for fully developed mixed convection in a vertical channel. - Int. J. Heat Mass Transfer, vol.42, pp.3169-3181.
- Cheng C.H., Kou H.S. and Huang W.H. (1990): Flow reversal and heat transfer of fully developed mixed convection in vertical channel. - J. Thermophysics Heat Transfer, vol.4, pp.375-383.
- Eringen A.C. (1964): Simple microfluids. - J. Math. Mech., vol.2, pp.205-217.
- Eringen A.C. (1966): Theory of micropolar fluids. - J. Math. Mech., vol.16, pp.1-16.
- Eringen A.C. (1972): Theory of thermomicrofluids. - J. Math. Anal. Appl., vol.38, pp.480-496.
- Eringen A.C. (2001): Microcontinuum Field Theories II: Fluent media. - New York: Springer-Verlag.
- Gorla R.S.R., Ghorashi B. and Wangskarn P. (1989): Mixed convection in vertical internal flow of a micropolar fluid. - Int. J. Engng. Sci, vol.27, pp.1553-1561.
- Hamadah T.T. and Wirtz R.A. (1991): Analysis of laminar fully developed mixed convection in a vertical channel with opposing buoyanc. - J. Heat Transfer, vol.113, pp.507-510.
- Hassanien L.A., Essawy A.H. and Moursy N.M. (2004): Natural convection flow of micropolar fluid from a permeable uniform heat flux surface in porous mediu. - Applied Mathematics and Computation, vol.152, pp.323-335.
- Lavine A.S. (1988): Analysis of fully developed opposing mixed convection between inclined parallel plates. - Warme Stoffubertragung, vol.23, pp.249-257.
- Lukaszewiez G. (1999): Microplar fluids: Theory and Applications. - Basel: Birkhauser.
- Prathap Kumar J, Umavathi J.C., Pop I. and Basavaraj Biradar M. (2009): Fully developed mixed convection flow in a vertical channel containing porous and fluid layer with isothermal or isoflux boundaries. - TIPM, DOI 10.1007/s11242-009-9347-8, 2009.
- Rees D.A.S. and Pop I. (1998): Free convection boundary-layer flow of a micropolar fluid from a vertical flat plate . - IMA J. Appl. Math., vol.61, pp.170-197.
- Umavathi J.C., Prathap Kumar J. and Chamkha Ali J. (2008): Flow and heat transfer of a micropolar fluid sandwiched between viscous fluid layers. - Candian J. of Physics, vol.86, pp.961-973.
- Umavathi J.C. and Malashetty M.S. (2005): Magnetohydrodynamic mixed convection in a vertical channel. - Int. J. Non-Linear Mech., vol.40, pp.91-101.
- Umavathi J.C., Mallikarjun Patil B. and Pop I. (2006): On laminar mixed convection flow in a vertical porous stratum with symmetric wall heating conditions. - Int. J. Transp. Phenom, vol.8, pp.1-14.
- Vajravelu K. and Hadjinicolaou A. (1993): Heat transfer in a viscous fluid over a stretching sheet with viscous dissipation and internal heat generators. - Int. Commun. Heat Mass Transfer, vol.20, pp.417-430.
- Vajravelu K. and Nayfeh J. (1992): Hydro magnetic convection at a cone and a wedge. - Int. Commun. Heat Mass Transfer, vol.19, pp.701-710.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0015-0031