Study and application of rainstorm waterlogging mathematical simulation in Nanchang City

Jian-min Yin; Xiao-qing Gu; Zhe Cai; Hui-qing Zeng

doi:10.1117/12.697800

12 December 2006 Study and application of rainstorm waterlogging mathematical simulation in Nanchang City

Jian-min Yin, Xiao-qing Gu, Zhe Cai, Hui-qing Zeng

Proceedings Volume 6412, Disaster Forewarning Diagnostic Methods and Management; 64121D (2006) https://doi.org/10.1117/12.697800
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

Abstract

A mathematical model describing urban rainstorm waterlogging distribution was designed by using 2-D unsteady flow equations to simulate urban earth' surface and river flows and combining with 1-D unsteady flow equation to simulate the flow of many secondary rivers and small channels, the dimensions in model of which are smaller than the grid ones. This model was applied to Nanchang city and different kinds of parameters in the model were simplified based on the features of the geography and urban drainage pipe systems. The simulated results are similar to real accumulated water. The errors of the former from the latter are within 20cm (about 83%), but the error greater than 30 cm (about 13%) should not be neglected.

Citation Download Citation

Jian-min Yin, Xiao-qing Gu, Zhe Cai, and Hui-qing Zeng "Study and application of rainstorm waterlogging mathematical simulation in Nanchang City", Proc. SPIE 6412, Disaster Forewarning Diagnostic Methods and Management, 64121D (12 December 2006); https://doi.org/10.1117/12.697800

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