Research in Numerical Simulation of Lager Multi-Scale Water Conveyance Tunnel Based on Mixed Time Integration Method

Abstract:

The global integration time step of multi-scale model is subject to local detailed model, resulting in lower computational efficiency. Mixed time integration method uses different integration time-step in different scale model, it can effectively avoid the above problem. Rest on a large-scale water tunnel under construction, in order to achieve the synchronization of the global and the local simulation, the paper establishes multi-scale finite element model of the tunnel, and calculate it by mixed time integration method. The final calculation and analysis show that the algorithm can guarantee the computational accuracy of multi-scale numerical simulation, and can effectively improve the computational efficiency, it can also provide references for related tunnel project.

• Periodical: Applied Mechanics and Materials (Volume 203)
• Pages: 432-437
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.203.432
• Online since: October 2012
• Authors: Jun Jie Zhao, Yan Zhi Yang
• Keywords: Computational Accuracy, Computational Efficiency, Mixed Time Integration Method, Multi-Scale Model, Water Conveyance Tunnel

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