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We report on the results of direct numerical simulations of the decay of homogeneous turbulence in density‐stratified fluids. The effects of stratification are examined by performing simulations for a range of different initial Froude numbers. Also two theoretical approaches are presented, which are applicable in the later stages of decay. For the conditions computed, although the stritification introduced definite wave‐like characteristics into the flow‐fields, the non‐linearity, as expressed for example by the spectral energy transfer, remained strong. However, the selective suppression of certain types of transfer was observed to occur.
Riley et al. (Thu,) studied this question.