Dear all,
I am trying to develop a simple (preferably 1-D) model of particle deposition in turbulent open channel flow,
from a continuous point source / plane. The aim is to predict the transport distance until deposition occurrs.
Important assumptions are that the channel bed is uniform, rough and fully absorbing in terms of suspended particles,
that there is no re-entrainment of deposited particles, and that suspended particle concentrations are small enough to not alter
bed topology and flow characteristics.
So far I have only been able to find models that consider (re-)entrainment of particles from the channel bed, include bed load transport
or incorporate the morphological changes over time.
Would it be more sensible to start altering equations of unsuitable models to my needs, or to continue looking for apt literature?
For the latter, could you be as kind as to point out some relevant literature (e.g. developed models, conceptual/discretized equations)?
Thanks in advance.
Alex
Dear collleage
if your medium is assumed to obey continuity, you can use eulerian lagrangian models which is known as DPM, and for your purpose, you need to work with stochastic random walk approah to find the path of particles.
But if your medium couldn;t be assumed as a continuous medium you need MD simulations.
regards
another note,
If you are sure that particle won't influence your velcity field and velocity field is known, you may find an analytical solution.
regards
HEC-RAS can be used for sediment transport and water quality. Is simple and you can model your case with it.
Thank you very much for your advice. Much appreciated. HEK-RAS will be of great use for me.
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