Rapid motion of a dry granular matter down an inclined moving plane

• Main Authors: Ming-huang Hsu, 許銘晃
• Other Authors: Chung Fang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/37483298859514637475

碩士 === 國立成功大學 === 土木工程學系碩博士班 === 96 === Based on the Goodman-Cowin theory we construct a constitutive model for dry granular materials. A thermodynamic analysis, based on the Müller-Liu entropy principle, is performed to derive the equilibrium expressions of the constitutive variables, and non-equilibrium responses are proposed by use of a quasi-linear theory. The model is applied to investigate a steady, isothermal, gravity-driven dry granular flow down an inclined moving plane. Numerical simulations are carried out to study the behavior of the flowing granular materials. Numerical results indicate that the predicted behavior is similar to those observed in the laboratory and field observations. The present model shows a good potential to simulate the behavior of rapid dry granular flows.