Radiative heating of a turbulent particle-laden flow: Effects of radiation regimes on turbulence dynamics

ORAL

Abstract

Radiation transport modeling has become increasingly important in the design and analysis of advanced thermal-fluid systems such as particle solar receivers. However, the mechanism for the two-way coupling of radiation transport with turbulence and particle dynamics has not been explored. In this work we employed algebraic and differential radiation models in direct numerical simulations of turbulence particle-lade flows subject to external radiative sources. It is shown that different radiation regimes, from optically thin to opaque, lead to significantly different turbulence structures and particle aggregation.

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Authors

  • Ari Frankel

    Department of Mechanical Engineering, Stanford University

  • Hadi Pouransari

    Department of Mechanical Engineering, Stanford University, CTR Stanford

  • Gianluca Iaccarino

    Stanford University, Department of Mechanical Engineering, Stanford University

  • Ali Mani

    Center for Turbulence Research, Stanford, Stanford University, Center for Turbulence Research, Stanford University, Department of Mechanical Engineering, Stanford University, CTR, Stanford University, CTR - Stanford University, CTR Stanford