Some Invariant Solutions of the Savage–Hutter Model for Granular Avalanches
نویسنده
چکیده
where h is the avalanche thickness, Q is the depth averaged downslope volume flux and x is the curvilinear downslope coordinate. The source term s on the right-hand side of (2) is composed of the downslope component of gravitational acceleration, the Coulomb sliding friction with basal angle of friction δ and gradients of the basal topography height, b, above the curvilinear coordinate system. It takes the form s = sin ζ −Q|Q|−1 tan δ (cos ζ + λκQ2h−2)− ε cos ζ ∂b ∂x , (3)
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تاریخ انتشار 2003