HydroGeoSphere/Surface Flow (Properties)

Default surface flow values Unless you modify the default values, all zones (and elements) in the surface flow domain will be assigned the default properties listed in Table 5.18: +Table 5.18Table 5.18: Default Properties for Surface Flow Parameter Value Unit Name Surface flow defaults - X friction factor 0.0548 - Y friction factor 0.0548 - Rill storage height 0.0 m Obstruction storage height 0.0 m Node coupling scheme shared - Coupling length 1 × 10−4 m For each instruction we will again indicate its scope (i.e. .grok, .oprops). Recall that if an instruction is used in the prefix.grok file, it will affect the current set of chosen zones, while in a properties (e.g. .oprops) file, it will only affect the named material of which it is a part. X friction Scope: .grok .oprops val x friction factor, in Equation 2.35. • • • Y friction Scope: .grok .oprops val y friction factor, in Equation 2.36. • • • Rill storage height Scope: .grok .oprops val Rill storage height [L], in Section 2.2.2.2. • • • Obstruction storage height Scope: .grok .oprops val Obstruction storage height [L], in Section 2.2.2.2. • • • Coupling length Scope: .grok .oprops val Coupling length [L], in Equation 2.71. • • •