Browse Published Papers - Theoretical and Applied Mechanics (TAM) by Title

  • Pushkin, Dmitri O.; Aref, Hassan (American Institute of Physics, 2002)
    A theory of stationary particle size distributions in coagulating systems with particle injection at small sizes is constructed. The size distributions have the form of power laws. Under rather general assumptions, the ...

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  • Tomkins, Christopher D.; Adrian, Ronald J. (Cambridge University Press, 2003)
    Spanwise structure and growth mechanisms in a turbulent boundary layer are investigated experimentally. PIV measurements are obtained in the streamwise– spanwise (x–z)-plane from the buffer layer to the top of the ...

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  • Natrajan, Vinay K.; Wu, Yanhua; Christensen, Kenneth T. (Cambridge University Press, 2007)
    The spatial signatures of retrograde spanwise vortices in wall turbulence are assessed from particle-image velocimetry measurements in the streamwise–wall-normal plane of a zero-pressure-gradient turbulent boundary layer ...

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  • Kasimov, Aslan R.; Stewart, D. Scott (Cambridge University Press, 2002)
    We investigate hydrodynamic instability of a steady planar detonation wave propagating in a circular tube to three-dimensional linear perturbations, using the normal mode approach. Spinning instability is identified and ...

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  • Hill, Kimberly M.; Gioia, Gustavo; Tota, Vinay V. (American Physical Society, 2003)
    We show that the structure of a dense, free-surface boundary layer granular flow is similar to the structure of a laminar liquid flow: There is a strong component of order (stratification parallel to the mean flow) ...

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  • Stewart, D. Scott; Kasimov, Aslan R. (Society of Industrial and Applied Mathematics, 2005)
    A steady planar self-sustained detonation has a sonic surface in the reaction zone that resides behind the lead shock. In this work we address the problem of generalizing sonic conditions for a three-dimensional unsteady ...

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  • Gioia, Gustavo; Chakraborty, Pinaki (American Physical Society, 2006)
    The classical experiments on turbulent friction in rough pipes were performed by Nikuradse in the 1930s. Seventy years later, they continue to defy theory. Here we model Nikuradse’s experiments using the phenomenological ...

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  • Gioia, Gustavo; Cuitiño, Alberto M.; Zheng, S.; Uribe, T. (American Physical Society, 2002)
    When poured into a container, cohesive granular materials form low-density, open granular aggregates. If pressure is applied to these aggregates, they densify by particle rearrangement. Here we introduce experimental and ...

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  • Zeng, Lanying; Balachandar, S.; Fischer, Paul (Cambridge University Press, 2005)
    We perform direct numerical simulations of a rigid sphere translating parallel to a flat wall in an otherwise quiescent ambient fluid. A spectral element method is employed to perform the simulations with high accuracy. ...

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