TY - GEN
T1 - A finite volume scheme for simulation of rainwater harvesting process
AU - Unami, Koichi
AU - Kawachi, Toshihiko
AU - Yangyuoru, Macarius
AU - Ishida, Kei
PY - 2007
Y1 - 2007
N2 - A finite volume scheme to numerically solve the twodimensional (2D) shallow water equations with source terms is presented. Innovative methods are developed for data reconstruction, flux splitting, evaluation of numerical fluxes, and treatment of source terms. Total variation diminishing (TVD) properties and monotonicity are established without using an approximate Riemann solver. The finite volume scheme is applied for numerical simulation of surface runoff phenomena in a watershed, which is the catchment area of a rainwater harvesting dam. The ground surface topography of the watershed is complex, and unsteady transcritical surface flow dominates the rainwater harvesting process. The simulation results demonstrate that the numerical model is excellent in terms of accuracy, robustness, efficiency, and applicability.
AB - A finite volume scheme to numerically solve the twodimensional (2D) shallow water equations with source terms is presented. Innovative methods are developed for data reconstruction, flux splitting, evaluation of numerical fluxes, and treatment of source terms. Total variation diminishing (TVD) properties and monotonicity are established without using an approximate Riemann solver. The finite volume scheme is applied for numerical simulation of surface runoff phenomena in a watershed, which is the catchment area of a rainwater harvesting dam. The ground surface topography of the watershed is complex, and unsteady transcritical surface flow dominates the rainwater harvesting process. The simulation results demonstrate that the numerical model is excellent in terms of accuracy, robustness, efficiency, and applicability.
KW - Finite volume scheme
KW - Integrated water resources management
KW - Rainwater harvesting
KW - Shallow water equations
UR - http://www.scopus.com/inward/record.url?scp=38049132086&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:38049132086
SN - 9780889865549
T3 - Proceedings of the Second IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
SP - 124
EP - 129
BT - Proceedings of the Second IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
T2 - 2nd IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006
Y2 - 6 February 2006 through 8 February 2006
ER -