Studies of Three Dimensional Convection with Surface Plates

平板三维对流研究

• 批准号: 9105982
• 负责人: Richard O'Connell
• 金额: $ 18.31万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9105982&HistoricalAwards=false
• 关键词: Studies; Three; Dimensional; Convection; Surface

This is a study of numerical studies of three-dimensional mantle convection. The model includes lithospheric plates driven by body forces and basal tractions. The calculations will address a number of important questions bearing on the motion and evolution of lithospheric plates, and how they influence flow in the mantle. Problems include (1) studies of how the toroidal flow introduced by plate motions influences deformation and the rate of mixing in the mantle; (2) multiple plates interact with mantle convection, and the relation between individual plate motions and the underlying mantle flow; (3) studies of the stress induced in plates by mantle convection, and how changes in the forces on plates influences their deformation and the formation of new plate boundaries.

这是三维地幔对流的数值研究。 该模型包括由体积力和基础牵引力驱动的岩石圈板块。 这些计算将解决许多与岩石圈板块运动和演化有关的重要问题，以及它们如何影响地幔中的流动。 问题包括（1）研究板块运动引入的环形流如何影响地幔中的变形和混合速率； （2）多个板块与地幔对流的相互作用，以及单个板块运动与底层地幔流之间的关系； (3)研究地幔对流在板块中引起的应力，以及板块上力的变化如何影响板块的变形和新板块边界的形成。