Geodesic
The blocking of an inhomogeneous Bingham fluid. Applications to landslides
Hild, Patrick  ; Ionescu, Ioan R.  ; Lachand-Robert, Thomas ; Roşca, Ioan1
1 Department of Mathematics, University of Bucharest, Str. Academiei, 14, 70109 Bucharest, Romania.
ESAIM: Mathematical Modelling and Numerical Analysis , Tome 36 (2002) no. 6, pp. 1013-1026

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This work is concerned with the flow of a viscous plastic fluid. We choose a model of Bingham type taking into account inhomogeneous yield limit of the fluid, which is well-adapted in the description of landslides. After setting the general threedimensional problem, the blocking property is introduced. We then focus on necessary and sufficient conditions such that blocking of the fluid occurs. The anti-plane flow in twodimensional and onedimensional cases is considered. A variational formulation in terms of stresses is deduced. More fine properties dealing with local stagnant regions as well as local regions where the fluid behaves like a rigid body are obtained in dimension one.

DOI : 10.1051/m2an:2003003
Classification : 49J40, 76A05
Keywords: viscoplastic fluid, inhomogeneous Bingham model, landslides, blocking property, nondifferentiable variational inequalities, local qualitative properties

Hild, Patrick  ; Ionescu, Ioan R.  ; Lachand-Robert, Thomas  ; Roşca, Ioan 1

1 Department of Mathematics, University of Bucharest, Str. Academiei, 14, 70109 Bucharest, Romania. 
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     title = {The blocking of an inhomogeneous {Bingham} fluid. {Applications} to landslides},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
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Hild, Patrick; Ionescu, Ioan R.; Lachand-Robert, Thomas; Roşca, Ioan. The blocking of an inhomogeneous Bingham fluid. Applications to landslides. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 36 (2002) no. 6, pp. 1013-1026. doi: 10.1051/m2an:2003003

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