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, "Numerical Fluid-Structure Interaction Study of a Cantilevered Pipe Discharging or Aspirating Fluid via a Computational Fluid Dynamics and Finite Element Analysis Model", in M. Papadrakakis, B.H.V. Topping, (Editors), "Proceedings of the Sixth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 48, 2008. doi:10.4203/ccp.89.48

Keywords: fluid-structure interactions, pipes conveying fluid, computational fluid dynamics, finite element analysis, dynamics.

Summary

This paper presents an investigation into the dynamics of a cantilevered pipe aspirating fluid at its free end, by means of numerical simulation. The significance of the problem is first discussed in terms of the applications motivating this work. Then the see-saw path towards understanding the dynamics is charted, specifically focussing on whether the system is subject to flutter or not, a question which remained open till this work. The main part of the paper is concerned with numerical modelling of the problem by means of finite elements in ANSYS and CFX modelling for the fluid, the first ever computational fluid dynamics-finite element analysis model for this problem, leading to a fully coupled fluid-structure interaction analysis. The model is validated by comparison to well-established analytical results for the cantilever discharging fluid. Then, for the aspirating cantilever, it is shown that flutter is indeed possible, at quite small flow velocities. This agrees with predictions of a hitherto non-validated analytical model and observations from very recently conducted experiments.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 89 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON ENGINEERING COMPUTATIONAL TECHNOLOGY Edited by: M. Papadrakakis and B.H.V. Topping Paper 48 Numerical Fluid-Structure Interaction Study of a Cantilevered Pipe Discharging or Aspirating Fluid via a Computational Fluid Dynamics and Finite Element Analysis Model D.B. Giacobbi¹, C. Semler¹^,² and M.P. Païdoussis¹ ¹Department of Mechanical Engineering, McGill University, Canada ²ROI Engineering Inc., Montreal, Canada doi:10.4203/ccp.89.48 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Numerical Fluid-Structure Interaction Study of a Cantilevered Pipe Discharging or Aspirating Fluid via a Computational Fluid Dynamics and Finite Element Analysis Model", in M. Papadrakakis, B.H.V. Topping, (Editors), "Proceedings of the Sixth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 48, 2008. doi:10.4203/ccp.89.48 Keywords: fluid-structure interactions, pipes conveying fluid, computational fluid dynamics, finite element analysis, dynamics. Summary This paper presents an investigation into the dynamics of a cantilevered pipe aspirating fluid at its free end, by means of numerical simulation. The significance of the problem is first discussed in terms of the applications motivating this work. Then the see-saw path towards understanding the dynamics is charted, specifically focussing on whether the system is subject to flutter or not, a question which remained open till this work. The main part of the paper is concerned with numerical modelling of the problem by means of finite elements in ANSYS and CFX modelling for the fluid, the first ever computational fluid dynamics-finite element analysis model for this problem, leading to a fully coupled fluid-structure interaction analysis. The model is validated by comparison to well-established analytical results for the cantilever discharging fluid. Then, for the aspirating cantilever, it is shown that flutter is indeed possible, at quite small flow velocities. This agrees with predictions of a hitherto non-validated analytical model and observations from very recently conducted experiments. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £95 +P&P)
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