数值模拟方法在河流冰塞水位模拟中的应用——以黄河三湖河口弯道段为例

doi:10.13866/j.azr.2021.06.07

Abstract

Abstract:

In this study, the open-source numerical river ice model RIVICE was used to simulate the ice jam water level in the Sanhuhekou bend reach of the Yellow River during the break-up period. Its parameters were then subjected to sensitivity analysis. Flow, water level, and ice th ickness were obtained from the Hydrological Yearbook. Results show that the RIVICE model can be utilized to simulate the ice jam water level in the break-up period. The backwater level of an ice jam is highly sensitive to the upstream boundary discharge, indicating the importance of water conservancy projects in flow regulation. Therefore, the established model can provide a scientific theoretical basis for managing water conservancy projects and ice flood control.

Key words: Sanhuhekou bend reach of the Yellow River, ice jam water level, RIVICE model

XU Kaili,LYU Haishen,LIU Minwen,ZHU Yonghua,HE Chaolu,XIE Bingqi. Numerical simulation of the ice jam stage in the Sanhuhekou bend reach of the Yellow River[J].Arid Zone Research, 2021, 38(6): 1556-1562.

Figures/Tables 6

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References 25

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参数/边界条件	单位	表征含义	2008年	2009年	2010年
n_b	-	河床糙率	0.012	0.012	0.012
n_{8 m}	-	冰盖糙率	0.12	0.12	0.12
K₁tan	-	冰塞与河岸的摩擦力	0.218	0.218	0.218
K₂	-	冰塞的内阻力	8.5	8.5	8.5
e	-	冰塞的孔隙度	0.3	0.3	0.3
F_T	m	冰塞前缘厚度	0.35	0.25	0.20
h	m	冰塞下游完整冰盖厚度	0	0	0
x	-	卡冰位置	167	167	167
V_ice	m³·Δt^-1	上游来冰量	50	60	40
Q	m³·s^-1	上游边界流量	800	661	670
W	m	下游边界水位	1020.7	1020.18	1020.36

Numerical simulation of the ice jam stage in the Sanhuhekou bend reach of the Yellow River

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