HR: 16:00h
AN: DI14A-01 INVITED    [Abstracts]
TI: CitcomS v3.0 - A compressible thermo-chemical mantle convection code
AU: * Tan, E
EM: tan2@geodynamics.org
AF: Computational Infrastructure for Geodynamics, 2750 E. Washington Blvd. Suite 210, Pasadena, CA 91107, United States
AU: Leng, W
EM: wei.leng@colorado.edu
AF: University of Colorado at Boulder, Dept. of Physics, Boulder, CO 80309, United States
AU: Zhong, S
EM: szhong@colorado.edu
AF: University of Colorado at Boulder, Dept. of Physics, Boulder, CO 80309, United States
AU: Gurnis, M
EM: gurnis@caltech.edu
AF: Computational Infrastructure for Geodynamics, 2750 E. Washington Blvd. Suite 210, Pasadena, CA 91107, United States
AB: The Earth's mantle extends ~3000 km from the surface to the core-mantle boundary. The vast pressure difference across the mantle changes the magnitudes of various physical properties of rock, e.g. density, thermal conductivity, and heat capacity. Here, we present CitcomS v3.0, a 3D spherical mantle convection code that incorporates compressibility, multi-component composition, phase changes, and non-Newtonian rheology. The governing equations are solved under the Truncated Anelastic Liquid Approximation. Two implementations of the Stokes equation solver, one using Conjugate Gradient (CG) method with an outer iteration and the other using Bi-CG Stabilized method, are discussed. The code has been benchmarked with a semi-analytical solution and has a good scaling on parallel computers. The code is open source and freely available and can be downloaded from the provided URL.
UR: http://www.geodynamics.org/cig/software/packages/mc/citcoms/
DE: 8121 Dynamics: convection currents, and mantle plumes
SC: Study of the Earth's Deep Interior [DI]
MN: 2007 Fall Meeting