TY - JOUR
T1 - A new solver for granular avalanche simulation
T2 - Indoor experiment verification and field scale case study
AU - Wang, Xiao Liang
AU - Li, Jia Chun
N1 - Publisher Copyright:
© 2017, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - A new solver based on the high-resolution scheme with novel treatments of source terms and interface capture for the Savage-Hutter model is developed to simulate granular avalanche flows. The capability to simulate flow spread and deposit processes is verified through indoor experiments of a two-dimensional granular avalanche. Parameter studies show that reduction in bed friction enhances runout efficiency, and that lower earth pressure restraints enlarge the deposit spread. The April 9, 2000, Yigong avalanche in Tibet, China, is simulated as a case study by this new solver. The predicted results, including evolution process, deposit spread, and hazard impacts, generally agree with site observations. It is concluded that the new solver for the Savage-Hutter equation provides a comprehensive software platform for granular avalanche simulation at both experimental and field scales. In particular, the solver can be a valuable tool for providing necessary information for hazard forecasts, disaster mitigation, and countermeasure decisions in mountainous areas.
AB - A new solver based on the high-resolution scheme with novel treatments of source terms and interface capture for the Savage-Hutter model is developed to simulate granular avalanche flows. The capability to simulate flow spread and deposit processes is verified through indoor experiments of a two-dimensional granular avalanche. Parameter studies show that reduction in bed friction enhances runout efficiency, and that lower earth pressure restraints enlarge the deposit spread. The April 9, 2000, Yigong avalanche in Tibet, China, is simulated as a case study by this new solver. The predicted results, including evolution process, deposit spread, and hazard impacts, generally agree with site observations. It is concluded that the new solver for the Savage-Hutter equation provides a comprehensive software platform for granular avalanche simulation at both experimental and field scales. In particular, the solver can be a valuable tool for providing necessary information for hazard forecasts, disaster mitigation, and countermeasure decisions in mountainous areas.
KW - TVD
KW - WAF
KW - avalanche
KW - landslide
UR - http://www.scopus.com/inward/record.url?scp=85032571758&partnerID=8YFLogxK
U2 - 10.1007/s11433-017-9093-y
DO - 10.1007/s11433-017-9093-y
M3 - Article
AN - SCOPUS:85032571758
SN - 1674-7348
VL - 60
JO - Science China: Physics, Mechanics and Astronomy
JF - Science China: Physics, Mechanics and Astronomy
IS - 12
M1 - 124712
ER -