American Journal of Applied Mathematics

Archive

Volume 2, Issue 4, August 2014

  • Free and Forced Convective Flow in a Vertical Channel Filled with Composite Porous Medium Using Robin Boundary Conditions

    Jada Prathap Kumar, Jawali Channabasappa Umavathi, Yadav Ramarao

    Issue: Volume 2, Issue 4, August 2014
    Pages: 96-110
    Received: 7 July 2014
    Accepted: 22 July 2014
    Published: 30 July 2014
    DOI: 10.11648/j.ajam.20140204.11
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    Abstract: Mixed convection flow and heat transfer in a vertical channel filled with composite porous medium using Robin boundary conditions is analyzed. The flow is modeled using the Darcy-Lapwood-Brinkman model. The viscous and Darcy dissipation terms are included in energy equation. The plate exchanges heat with an external fluid. Both the conditions of eq... Show More
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  • On Generalized Fuzzy Mean Code Word Lengths

    Dhara Singh Hooda, Arunodaya Raj Mishra, Divya Jain

    Issue: Volume 2, Issue 4, August 2014
    Pages: 127-134
    Received: 21 July 2014
    Accepted: 9 August 2014
    Published: 30 August 2014
    DOI: 10.11648/j.ajam.20140204.13
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    Abstract: In present communication, a generalized fuzzy mean code word length of degree β has been defined and its bounds in the term of generalized fuzzy information measure have been studied. Further we have defined the fuzzy mean code word length of type (α,β) and its bounds have also been studied. Monotonic behavior of these fuzzy mean code word lengths ... Show More
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  • Investigation of Pressure Distributions for a Finite Elastohydrodynamic Journal Bearing Lubricated by Ferro Fluids with Couple Stresses

    Kihuga Daniel, Kinyanjui Mathew, Kimathi Mark

    Issue: Volume 2, Issue 4, August 2014
    Pages: 135-140
    Received: 2 August 2014
    Accepted: 18 August 2014
    Published: 30 August 2014
    DOI: 10.11648/j.ajam.20140204.14
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    Abstract: The performance of finite elastohydrodynamic journal bearings lubricated by ferrofluids with couple stresses has been studied. We derive a Reynolds equation that takes into account magneto elastohydrodynamics, by using the continuity and momentum equations. The equation has been integrated locally across the film thickness and an equation for the p... Show More
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  • Chemically Reacting Unsteady Magnetohydrodynamic Oscillatory Slip Flow of a Micropolar Fluid in a Planer Channel with Varying Concentration

    A. A. Bakr

    Issue: Volume 2, Issue 4, August 2014
    Pages: 141-148
    Received: 12 August 2014
    Accepted: 21 August 2014
    Published: 30 August 2014
    DOI: 10.11648/j.ajam.20140204.15
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    Abstract: The study examines the problem of unsteady MHD mixed convection in a micropolar fluid with oscillatory flow of an electrically conducting optically thin fluid through a planer channel filled with saturated porous medium. The effect of buoyancy, heat source, thermal radiation and chemical reaction are taken into account embedded with slip boundary c... Show More
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