کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4742304 1641575 2008 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multigrid-based simulation code for mantle convection in spherical shell using Yin–Yang grid
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
Multigrid-based simulation code for mantle convection in spherical shell using Yin–Yang grid
چکیده انگلیسی

A new simulation code of mantle convection in a three-dimensional spherical shell is presented. Major innovation of the code comes from an combination of two numerical techniques, namely Yin–Yang grid and ACuTE algorithm, which we had developed for large-scale simulations of solid earth sciences. Benchmark comparisons for the steady convection for low Rayleigh numbers (Ra  ) with previous calculations revealed that accurate results are successfully reproduced not only for isoviscous cases but also for the cases where the mild temperature-dependence of viscosity is included. We also demonstrated that our code can reproduce the change in convective flow patterns into the “sluggish-lid” regime with increasing the viscosity variation rηrη up to 104104.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics of the Earth and Planetary Interiors - Volume 171, Issues 1–4, December 2008, Pages 19–32
نویسندگان
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