Combined Laboratory and Numerical Modeling of the Dynamics of Mid-Ocean Ridges

大洋中脊动力学的联合实验室和数值模拟

• 批准号: 9216081
• 负责人: David Sparks
• 金额: --
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-01 至 1993-02-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9216081&HistoricalAwards=false
• 关键词: Combined; Laboratory; Numerical; Modeling; Dynamics

This study is a combined theoretical and physical study of the style of convection beneath mid-ocean ridges using laboratory and numerical fluid dynamics experiments. Laboratory studies at the University of Rhode Island will involve an apparatus that uses mylar sheets to model the motion of surface plates. Buoyancy will be provided by cooling along the top of the tank and either the injection of fluids with different compositional densities or localized heating along the base of the tank. Numerical experiments will simulate 3-D thermal and compositional convection, with constant and variable viscosity, plate driven and buoyant flow, (2) the formation and evolution of longitudinal convection rolls in thermal and compositional convection, (3) the effect of segmentation on convection, and (4) the role of deep mantle sources of buoyancy.

本研究是一个理论和物理相结合的研究 使用实验室和 数值流体动力学实验 实验室研究 罗得岛大学将涉及一种使用 聚酯薄膜片来模拟表面板块的运动。 浮力将 通过沿着罐的顶部冷却， 注入具有不同组成密度的流体，或 沿罐的底部沿着局部加热。 数值 实验将模拟三维热对流和成分对流， 具有恒定和可变粘度、板驱动和浮力 纵向对流的形成和演化 在热对流和成分对流中滚动，（3） （4）深部地幔源区的作用 浮力。