SHUD - Simulator of Hydrological Unstructured Domain.
Website: www.shud.xyz
Author: Lele Shu www.shulele.net
The V-Catchment (VC) experiment is a standard test case for numerical hydrological models to validate their performance for overland flow along a hillslope and in the presence of a river channel. The VC domain consists of two inclined planes draining into a sloping channel.
Both hillslopes are
Rainfall in the VC begins at time zero at a constant rate of
I use SHUD model to repeat the VC experiment, there are several literatures did the same experiment, but only Shen(2010) export the flux on side-plane which is also useful to validate the modeling algorithm.
However, the value of volume flux of side-plane in Shen(2010) is problematic. Lets explain: based on the Continuity Law, the total input (precipitation) must be equal to output (side-plane flow) or discharge (outlet flow). But the side-plane flux in Shen (2010) is 20 times less than the discharge. I assume Shen made a wrong unit conversion somehow. When I enlarge the side-plane flux by 20, the flux rate and accumulated flux are rational. I tried to contact Shen, but he didn't reply with explanation, so I continue the work with my understanding.
The result figure (last figure in this file) also supports my thought. The side-plane flux in the result figure is the modified value (Shen's side-plane flux times 20). Both flow rate meet the Continuity Law. So, I think this is the right interpretation of Shen's result.
The R scripts include:
- Build the V-catchment
- Generate the physical and model parameters
- Run simulations.
- Visulize results
- Compare the result with literature (Shen2010).
- Input files for SHUD model.
- Result files from SHUD model.
- Digitalized data from Shen2010.
The script and data are open access for any purposes. I would be most grateful if you could send me an email (at [email protected]) when they help you.