Large-Eddy Simulation of Dispersion from Line Sources in a Turbulent Channel Flow
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- Boppana, V.B.L., Xie, ZT. & Castro, I.P. Flow Turbulence Combust (2012) 88: 311. doi:10.1007/s10494-011-9356-x
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Large-eddy simulations of the dispersion from scalar line sources at various locations within a fully developed turbulent channel flow at Re = uh/ν = 10,400 are presented. Both mean and fluctuating scalar quantities are compared with those from the single available set of experimental data (Lavertu and Mydlarski, J Fluid Mech 528:135–172, 2005) and differences are highlighted and discussed. The results are also discussed in the context of scalar dispersion in other kinds of turbulent flows, e.g. homogeneous shear-flow. Initial computations at a much lower Reynolds number are also reported and compared with the two available direct numerical simulation data sets.