Numerical simulation of vortex induced vibration in heat exchanger tube bundle at low Reynolds number
It is sound recognized that when the tube is forced to vibrate or is naturally excited to sufficient amplitudes by flow-induced forces, cyclones peeling phenomena arises at downstream of a tube which clues to vibration in the tube. Two-dimensional numerical recreation model for the computation of flow induced vibration of heat exchanger tube bundle imperiled to cross- flow is proficient in current research. Computational Fluid Dynamics (CFD) tool, GAMBIT (grid generation) and ANSYS FLUENT (fluid flow analysis) are operated during numerical investigations. k-epsilon model is used to solve the Navier Stokes equations. Lift coefficient graph derived from analysis is used to predict the vortex shedding frequency using Fast Fourier Transform (FFT). The results of flow rate, Strouhal number, Reduced velocity, Natural frequency of tube as found from the experimental data has been verified numerically for a Reynolds number range of 4.45 × 104<Re <4.65 × 104 . It is concluded that experimental results are well in agreement with the numerical results.
Blevins, R. D., 1977, "Flow-induced vibration", Van Nostrand Reinhold Company.
Chenoweth, J. M., Chisholm, D., Cowie, R. C., Harris, D., Illingworth, A., Loncaster, J. F., Morris, M., Murray, I., North, C., Ruiz, C., Saunders, E. A. D., Shipes, K.V., Dennis Usher, and Webb, R. L., 1993, Heat Exchanger Design Handbook HEDH, Hemisphere Publishing Corporation.
Kevlahan, N.-R. (2011). "The role of vortex wake dynamics in the flow-induced vibration of tube arrays." Journal of Fluids and Structures 27(5): 829-837.
Yu, M. H., & Lin, T. K. (2005). A numerical study on fluid elastic vibrations of multiple cylinders in cross flow. Journal of the Chinese Institute of Engineers, 28(1), 101-110.
Grotz, B. J., and Arnold, F. R., 1956, "Flow-induced vibration in heat exchangers", TN No. 31 to office of Naval Research from Stanford, A.D 104508.
Lienhard, J. H., 1966, "Synopsis of lift, drag and vortex frequency data for rigid circular cylinders", Washington State University, College of Engineering Research Division, Bulletin, 300.
Karaman, Th., 1912, "Uber den mechanismus des Widerstandes den einbewegterKorper in einenFlussigkeitErfahrt, Nachr. Konigl. Gesellschaft.
Liang, C., Papadakis, G., &Luo, X. 2009 Effect of tube spacing on the vortex shedding characteristics of laminar ?ow past an inline tube array: A numerical study, Computers & Fluids, 38,950964.
Williamson, C. H. K., &Govardhan, R. 2008 A Brief Review Of Recent Results In Vortex-Induced Vibrations, Journal of Wind Engineering and Industrial Aerodynamics, 96, 713 735.
Patnaik, V. and A. Narayana (1999). "Numerical simulation of vortex shedding past a circular cylinder under the influence of buoyancy." International Journal of Heat and Mass Transfer 42(18): 3495-3507.
Gohel, H. R., B. A. Shah and A. M. Lakdawala (2013). "Numerical Investigation of Flow Induced Vibration for the Triangular Array of Circular Cylinder." Procedia Engineering 51: 644-649.
Longatte, E., Z. Bendjeddou and M. Souli (2003). "Methods for numerical study of tube bundle vibrations in cross-flows." Journal of fluids and structures 18(5): 513-528.
Hassan, M., Weaver, D., & Dokainish, M. (2002). A simulation of the turbulence response of heat exchanger tubes in lattice-bar supports. Journal of Fluids and Structures, 16(8), 1145-1176.
De Morais, M. V. G., Gibert, R.-J., Baj, F., & Magnaud, J.-P. Numerical Analysis Of Fluid-Elastic Instability In A Square Tube Bundle-Ale And Transpiration Methods.
Wang, L., Dai, H., & Han, Y. (2012). Cross-flow-induced instability and nonlinear dynamics of cylinder arrays with consideration of initial axial load. Nonlinear Dynamics, 67(2), 1043-1051.
Huang, Z., J. Olson, R. Kerekes and S. Green (2006). "Numerical simulation of the flow around rows of cylinders." Computers & fluids 35(5): 485-491.
Simoneau, J.-p., Sageaux, T., Moussallam, N., & Bernard, O. (2011). Fluid structure interaction between rods and a cross flowNumerical approach. Nuclear Engineering and Design, 241(11), 4515-4522.
Liaw, K., (2005). Simulation of flow around bluff bodies and bridge deck sections using CFD. University of Nottingham.
Khushnood, S. 2005 Vibration analysis of a Multi-span tube in a bundle Ph.D Thesis, Department of Mechanical Engineering, College of Electrical and Mechanical Engineering, National University of Science and Technology, Rawalpindi, Pakistan.
Rahman, M. M., Karim, M. M., & Alim, M. A. (2007). Numerical investigation of unsteady flow past a circular cylinder using 2-D finite volume method. Journal of Naval Architecture and Marine Engineering, 4(1), 27-42.
Schröder, K., & Gelbe, H. (1999). Two-and three-dimensional CFD-simulation of flow-induced vibration excitation in tube bundles. Chemical Engineering and Processing: Process Intensification, 38(4), 621-629.