Navigable flow condition simulation based on two-dimensional hydrodynamic parallel model

Navigable flow condition simulations can provide detailed information on water depth and velocity distribution, simulation speed is one of the key factors which influence real-time navigation. In this paper, a navigable flow condition simulation system is developed to provide useful information for...

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Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2018-08, Vol.30 (4), p.632-641
Main Authors: Zhang, Shang-hong, Wu, Yu, Jing, Zhu, Yi, Yu-jun
Format: Article
Language:English
Subjects:
Engineering
Engineering Fluid Dynamics
Hydrology/Water Resources
Numerical and Computational Physics
Simulation
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Summary:Navigable flow condition simulations can provide detailed information on water depth and velocity distribution, simulation speed is one of the key factors which influence real-time navigation. In this paper, a navigable flow condition simulation system is developed to provide useful information for waterway management and shipping safety. To improve the simulation speed of 2-D hydrodynamic model, an explicit finite volume method and OpenMP are used to realize parallel computing. Two mesh schemes and two computing platforms are adopted to study the parallel model’s performance in the Yangtze River, China. The results show that the parallel model achieves dramatic acceleration, with a maximum speedup ratio of 34.94×. The parallel model can determine the flow state of the navigable channel in about 4 min, efficiency is further improved by a flow simulation scheme database. The developed system can provide early warning information for shipping safety, allowing ships to choose better routes and navigation areas according to real-time navigable flow conditions.
ISSN:1001-6058
1878-0342
DOI:10.1007/s42241-018-0062-1