Abstract
Abstract Optimum safe design through numerically investigation and simulation of FSI due to seismic loading on acid tank with piping attachment is presented. A nonlinear FSI based on the FEM is performed on a full-scale 3D model. Investigations are supplemented by a CFD to simulate the fluid motion inside the tank using acceleration time history of Kocaeli earthquake, the response of the maximum stress, deformation, and displacement of rigidly restrained fixed and flexible tanks at different fill levels and thickness are evaluated. The results are compared and analyzed with design codes and the difference observed in hydrostatic pressure is less than 0.08%, and in maximum values of hydrodynamic pressure are less than 4.3%, 0.8%, and 1.5% at three fill level while the average difference in transient time history total pressure is less than 0.4%. Finally, the provision given in the design codes and response of parameters is computed and polynomial correlation is proposed with an accuracy of above 0.99 and average difference less than 5% in fixed tank and less than 2% in the flexible tank for designing a safe tank by analysis.
Highlights
Large fluid storage tanks with piping attachments are lifeline structures used in industrial and urban areas with a variety of applications ranging from water for drinking and firefighting, to store chemicals, petroleum, and LNG
Time history analyses are performed to investigate the realistic response of the system and it is compared with design codes, and reliable safe design for three fill levels of fluid have been carried with anchored and unanchored acid storage tank with four different wall thickness coupled with a fixed piping system and results are plotted on 3D graphs in subsections to develop a reliable safe design methodology and relationship
The overall purpose of this study focuses on safe design improvement through numerically investigation and simulation of the fluid structure interaction (FSI) effects of hydrodynamics on acid storage tank with piping attachment by using the ANSYS workbench and develop a methodology relationship by adopting 3D nonlinear fitting techniques
Summary
Large fluid storage tanks with piping attachments are lifeline structures used in industrial and urban areas with a variety of applications ranging from water for drinking and firefighting, to store chemicals, petroleum, and LNG. The seismic response of a liquid storage tank with piping attachments is quite different from conventional structures. In case of any damage or leakage of hazardous contents in form of toxic chemicals or fire pollution leading to unembellished significances to both atmosphere and human lives. This damage to industrial facilities had a substantial impact on the economy in terms of both direct and indirect losses. Resulting release and spilled of hazardous materials from several broken and damaged pipes, joints, and vessels (Krausmann, Cruz and Affeltranger, 2010)
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