Browse by Author "Riahi, Daniel N."

  • Bhattacharjee, Pratik; Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2005-12)
    Microgravity conditions pose unique challenges for fluid handling and heat transfer applications. By controlling (curtailing or augmenting) the buoyant and thermocapillary convection, the latter being the dominant convective ...
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  • Riahi, Daniel N. (2006-01)
    Flow instability due to oscillatory modes of disturbances in a horizontal dendrite layer during alloy solidification is investigated under an external constraint of rotation. The flow in the dendrite layer, which is ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2006-02)
    Inertial effects on flow instabilities in a horizontal reactive porous layer with deformed upper boundary are studied using a linear stability analysis and under the condition that the porous layer, which is also referred ...
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  • Bhattacharjee, Pratik; Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2005-12)
    In this paper some previous studies related to those for the flow control aspects of the hydrodynamics of magnetic fluid and field are reviewed first and recent mathematical approaches for the corresponding systems of the ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2005-10)
    This paper is divided into two parts. In the first part physical meanings and some other aspects of wind and the driving forces are reviewed. These includes types of driving forces, sources for wind production, boundary ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2004-03)
    This is a review article on modeling convective flows due to either buoyancy force or surface tension gradient force during protein crystallization that have been studied in the past. The modeling and computational studies ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC)Cambridge University Press, 2005-12)
    This paper presents some extensions of two main problems of nonlinear compositional convection in horizontal mushy layers during the solidification of binary alloys that were recently investigated by the author (Riahi 2002, ...
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  • Riahi, Daniel N. (Cambridge University Press, 2006)
    We consider the problem of nonlinear oscillatory convection in a horizontal mushy layer rotating about a vertical axis. Under a near-eutectic approximation and the limit of large far-field temperature, we determine the ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2004-12)
    We consider the problem of nonlinear oscillatory convection in a horizontal mushy layer rotating about a vertical axis. We analyze the standing and traveling modes of oscillatory convection in the form of two-dimensional ...
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  • Bhattacharjee, Pratik; Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2005-12)
    Microgravity conditions pose unique challenges for fluid handling and heat transfer applications. By controlling (curtailing or augmenting) the buoyant and thermocapillary convection, the latter being the dominant convective ...
    untranslated PDF (2MB)
  • Okhuysen, Brett S.; Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2005-01)
    We consider the problem of nonlinear steady buoyant convection in horizontal mushy layers during the solidification of binary alloys. We investigate both cases of zero vertical volume flux and constant pressure, referred ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2003-06)
    The topic of this review article is about some aspect of flow during alloy solidification and the corresponding research development that has been accomplished in the recent years to determine the features of such flows, ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2003-07)
    The topic of this review article is about some aspects of fluid dynamics during crystallization and the control of such flow by using external constraints such as rotation and magnetic field. Following a brief introduction ...
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  • Riahi, Daniel N. (Cambridge University Press, 2002)
    We consider the problem of nonlinear convection in horizontal mushy layers during the solidification of binary alloys. We analyse the oscillatory modes of convection in the form of two- and three-dimensional travelling ...
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  • Riahi, Daniel N. (Cambridge University Press, 2004)
    This paper presents part 2 of a study of nonlinear convection in horizontal mushy layers during the solidification of binary alloys. Part 1 dealt with only the oscillatory modes of convection (Riahi, J. Fluid Mech. vol. ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2002-09)
    This paper presents part 2 of the problem of nonlinear convection in horizontal mushy layers during the solidification of binary alloys. Part 1 of the problem dealt with only the oscillatory modes of convection, which were ...
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  • Dong, Fei; Riahi, Daniel N.; Hsui, Albert T. (Department of Theoretical and Applied Mechanics (UIUC), 2003-05)
    Compaction generally refers to the relative motion of fluid with respect to the deformable surroundings in a two-phase system. It has many geophysical and engineering applications, including liquefaction, formation of magma ...
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  • Dong, Fei; Hsui, Albert T.; Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2001-01)
    Linear and nonlinear analyses of thermal convection with a variable "buoyancy factor", which is defined as the product of thermal expansion coefficient and gravitational acceleration, are investigated for a fluid layer ...
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  • Riahi, Daniel N. (Department of Theoretical and Applied Mechanics (UIUC), 2004-03)
    Steady and oscillatory modes of convective flow in a horizontal mushy layer during alloy solidification are reviewed. The theoretical problem has been based on the model developed by Amberg and Homsy and under the limit ...
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