[Nek5000-users] possibly starting to use nekton, questions

[nek5000-users at lists.mcs.anl.gov]

Hi all,
I'm considering to start using Nekton. I would like to simulate a spatially
evolving 3D boundary layer with a spanwise array of cylinders poking out of
the flat wall. The cylinders would also move up and down in the wall normal
direction, generating a time-varying disturbance. My goal is to delay bypass
transition by dampening this disturbance via feedback control of localized
body forces near the wall. Does Nekton currently have these aspects
implemented, namely:

1. spatially evolving boundary layer at transitional Re (Re based on
displacement thickness of at least ~1000)
2. cylinders independently poking up and down with prescribed height as
function of time
3. feedback control with multiple inputs and outputs
4. multiple arbitrary body forces, with independent magnitudes given by the
feedback controller or as a function of time
5. ability to calculate the perturbation velocity from laminar for feedback
control
6. linear and nonlinear cases (for 1-5)

If the control and/or body force parts are not implemented, I'm considering
using Nekton to get the wake behind the cylinders and feeding this to a
simpler code that can't simulate them directly but would have control and
body force aspects.

Thanks for your guidance!
Brandt
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