Channelflow 2.0

Stratified ECS at high Prandtl number

Hi all,

We have a paper out on arXiv in which some of the computations were done with Channelflow 2.0 modified to support density stratification.

https://arxiv.org/abs/1904.04853

It is mainly about the generic tendency of the density field to homogenise in the channel interior at high Pr (= O(100)) and the corresponding formation of boundary layers and interfaces, but there are some low Pr calculations too.

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Have you checked the validity if the results for large value of Reynolds number (O(10^4 or 10^5))?. Whether the results for such a large are correct or not?

Hi,

For the most part, high Re behaviour is covered by SSP/VWI-type analyses and we make some of these asymptotic arguments in the paper. There are a few numerical results at high Re (1e5 if I remember correctly) at the end too which may be of interest.