Reply To: water hydrology

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Oliver Kreylos

The paper on which the water simulation is based is referenced in the AR Sandbox project page. The epsilon value going into flux and derivative calculation is explained in that paper.

Attenuation is my addition; it’s a simple way to remove energy from the water mass over time. For serious hydrology applications you want to replace that with a proper (bedding) friction term, which would include surface roughness as one parameter. There’s a simple friction term that has been evaluated against gauge data from the 1959 Malpasset dam failure in this SIAM presentation by Andre Brodtkorb.

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