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Influence of "Hidden Parameter" H0 on overland flow (FE)
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TOPIC: Influence of "Hidden Parameter" H0 on overland flow (FE)

Influence of "Hidden Parameter" H0 on overland flow (FE) 5 years 7 months ago #33380

  • Karl
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Hello ALL,

this is a follow up to Thomas thread on "Threshold value for outflow of water from cells in FE-scheme". He is a colleague of mine at TUM.

I found that the "Hidden Parameter" H0 in fricti.f has significant influence on flood propagation of overland flow for the FE-scheme. The picture enclosed shows a comparison of max. water depths for H0=3cm (standard) and H0=1mm for a flooding caused by rainfall using the FE-model (Cut-off is 1mm). The solution FE with H0=1mm is much closer to the FV-results. What we do not know is, whether there are side effects, if we use a smaller H0. All results look reasonable and the simulation runs smoothly without delay. Nevertheless we would like to ask:

Did anyone analyze the influence of H0 in fricti.f ?

Best regards
Karl
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Influence of "Hidden Parameter" H0 on overland flow (FE)

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