Development of a variational multiscale homogenization method for predicting erosion damage to embankments

Research Project

Project/Area Number	24K17983
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 41030:Rural environmental engineering and planning-related
Research Institution	Kyoto University
Principal Investigator	SHARMA VIKAS 京都大学, 農学研究科, 研究員 (20985212)
Project Period (FY)	2024-04-01 – 2027-03-31
Project Status	Granted (Fiscal Year 2024)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2026: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2025: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2024: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords	multiscale / disaster prevention / erosion / simulation / finite element method
Outline of Research at the Start	The goal of this research is to enhance the resilience of earthen structures against erosion due to heavy rainfall and tsunami. The present research develops finite element methods and microscopic flow visualization techniques to enlighten the pore-scale phenomena. A variational multiscale homogenization method will be developed to connect the multiscales while simulating the erosion of soils due to water. Also, the research will reveal variation of soil and fluid properties near the interface and connect the theories of fluid mechanics and soil mechanics to predict soil erosion due to water.