EFFECT OF ESCAPE DEVICE FOR SUBMERGED FLOATING TUNNEL (SFT) ON HYDRODYNAMIC LOADS APPLIED TO SFT

作     者：DONG Man-sheng MIAO Guo-ping YONG Long-chang NIU Zhong-rong PANG Huan-ping HOU Chao-qun 

作者机构：School of Civil Engineering Hefei University of Technology Hefei 230009 China State Key Laboratory of Ocean Engineering-Shanghai JiaoTong Universityl Shanghai 200030 China School of Transportation Engineering Hefei University of Technology'Hefei 230009 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2012年第24卷第4期

页      面：609-616页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the China Postdoctoral Science Foundation (Grant Nos. 201003274, 20090460636) the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20090111120016) 

主　　题：Submerged Floating Tunnel (SFT) conceptual design flow Airy wave escape device hydrodynamic load 

摘      要：This paper presents a potential approach to settle the problem of surviving major safety accidents in Submerged Floating Tunnel （SFT） that detachable emergency escape devices are set up outside SFT. The Computational Fluid Dynamics （CFD） technology is used to investigate the effect of emergency escape devices on the hydrodynamic load acting on SFT in uniform and oscillatory flows and water waves by numerical test. The governing equations, i.e., the Reynolds-Averaged Navier-Stokes （RANS） equations and k - ε standard turbulence equations, are solved by the Finite Volume Method （FVM）. Analytic solutions for the Airy wave are applied to set boundary conditions to generate water wave. The VOF method is used to trace the free surface. In uniform flow, hydrodynamic loads, applied to SFT with emergency escape device, reduce obviously. But, in oscillatory flow, it has little influence on hydrodynamic loads acting on SFT. Horizontal and vertical wave loads of SFT magnify to some extend due to emergency escape devices so that the influence of emergency escape devices on hydrodynamic loads of SFT should be taken into consideration when designed.