Evolution of Primitive Hydrous Solar System Bodies: A Reaction-Transport-Mechanical Model

9319120奥尔托列娃将开发一个完全耦合的反应-运输-力学模型和计算机代码来研究原始太阳系天体的水合变化。关于加热机制及其对冰融化、流体流动、压实和大规模矿物分带模式的影响的假设将得到测试。将使用有限元和有限差分数值方法和自适应网格技术来求解描述化学反应和输运、流体流动、传导和平流的热传输、化学和机械压实以及孔弹和塑性变形的方程。这些研究预计将有助于研究由于物理和化学过程的完全耦合而导致的小行星蚀变过程的演化史；并为研究低温行星变化/分化过程的其他研究人员提供计算机代码。

9319120 Ortoleva A fully coupled reaction-transport-mechanical model and computer code will be developed to investigate the hydrous alteration of primitive Solar System bodies. Hypotheses regarding heating mechanisms and their effect on ice melting, fluid flow, compaction, and large-scale mineral zonation patterns will be tested. Finite element and finite difference numerical methods and adaptive grid techniques will be used to solve equations describing chemical reaction and transport, fluid flow, heat transport by conduction and advection, chemical and mechanical compaction, and poroelastic and plastic deformation. These investigations are expected to contribute to an evolutionary history of alteration processes in asteroids resulting from the full coupling of physical and chemical processes; and to result in a computer code available for other researchers studying low temperature planetary alteration/differentiation processes.