Research Planning Grant: To Develop a Numerical Sandbox: Distinct Element Models for Submarine Critical Coulomb Wedges

研究规划补助金：开发数值沙箱：潜艇临界库仑楔的独特元素模型

• 批准号: 9618198
• 负责人: Julia Morgan
• 金额: $ 1.8万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-02-15 至 1999-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9618198&HistoricalAwards=false
• 关键词: Research; Planning; Grant; Develop; Numerical

This Research Planning Grant will explore the use of the Discrete Element Method (DEM) in simulating deformation of accretionary and extensional sediment wedges, in a manner analogous to that of experimental sandbox models. In DEM simulations, each particle is treated independently and interacts with all other particles according to the laws of physics; the bulk behaviour of the granular system therefore is obtained directly. Physical and mechanical properties of the particles and the system can be measured and modified in ways not possible for analog sandbox models. The PI will modify existing code to permit the user to interact with the model graphically, and will then apply the model to examine the widely-used theory of critical taper in Coulomb wedges.

这项研究计划拨款将探索离散元法（DEM）的使用，以类似于实验沙盒模型的方式模拟增生和伸展沉积物楔的变形。在DEM模拟中，每个粒子被独立处理，并根据物理定律与所有其他粒子相互作用；因此可以直接得到颗粒体系的体积特性。粒子和系统的物理和机械特性可以以模拟沙盒模型无法实现的方式进行测量和修改。PI将修改现有代码，以允许用户与图形化模型交互，然后将应用该模型来检查库仑楔中广泛使用的临界锥度理论。