Numerical Simulation of a Submerged Floating Tunnel: Validation and Analysis
Source abstract
Abstract
The dynamic response analysis of submerged floating tunnels (SFTs) under seismic action is a complex two-way fluid–structure coupling problem that requires expertise in structural dynamics, fluid mechanics, and advanced computational methods. The coupled Eulerian–Lagrangian (CEL) method is a promising method for solving fluid–structure interaction problems, but its application to SFTs is not well established. Therefore, it is crucial to verify the accuracy and reliability of the CEL method in fluid–structure coupling simulations. This study verified the applicability of the CEL method for simulating one-way and two-way fluid–structure coupling cylindrical flow problems, and then applied the CEL method for the analysis of a shaking table test of a model SFT. A comparison of results obtained with the CEL method with those obtained in a previous indoor model test of an SFT demonstrates the agreement between the results of the CEL method and the overall trend of the experimental results, indicating the reliability of the method for the seismic analysis of SFTs. Moreover, the analysis of the dynamic response characteristics of SFTs under seismic conditions provides data support and a technological means for the seismic design of SFTs.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Fluid Dynamics and Vibration Analysis · Fluid Dynamics Simulations and Interactions · Vibration and Dynamic Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
Funding
the Basic Research Business Special Fund of Central Public Welfare Research Institutes
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