Simulation of LP seismic signals modeling the fluid-rock dynamic interaction
Por:
Corona-Romero, P, Arciniega-Ceballos, A, Sanchez-Sesma, FJ
Publicada:
15 ene 2012
Resumen:
We present an investigation on the fluid-rock dynamic interaction in a fluid-driven conduit embedded in an infinite, homogeneous elastic space. In our model, the fluid and the rock are dynamically coupled by enforcing continuity of radial velocities and tractions at the conduit wall. A pressure transient applied at the bottom of the conduit perturbs the steady flow of the incompressible viscous fluid, driving the interaction between the fluid flow and motion of the conduit's walls. The fluid motion induces an elastic response of the conduit, forcing it to oscillate radially. Our model allows connection in series of any number of fluid-filled pipe segments of different sizes simulating the geometry of volcanic conduits and an extended source mechanism, which generates long lasting oscillations. The fluid-filled conduit dynamics is governed by three ordinary, second-order, non-linear differential equations, which are solved numerically by applying a fifth-order Runge-Kutta scheme. The fl
Filiaciones:
Univ Nacl Autonoma Mexico, Inst Geofis, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
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