Advanced SearchSearch Tips
The Power Spectral Density Characteristics of Lift and Drag Fluctuation on a Heat Exchanger Circular Tube
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
The Power Spectral Density Characteristics of Lift and Drag Fluctuation on a Heat Exchanger Circular Tube
Ha, Ji Soo;
  PDF(new window)
Heat exchanger tube array in a heat recovery steam generator is exposed to the hot exhaust gas flow and it could cause the flow induced vibration, which could damage the heat exchanger tube array. It is needed for the structural safe operation of the heat exchanger to establish the characteristics of flow induced vibration in the tube array. The researches for the flow induced vibration of typical heat exchangers have been conducted and the nondimensional PSD(Power Spectral Density) function with the Strouhal number, fD/U, had been derived by experimental method. The present study examined the results of the previous experimental researches for the nondimensional PSD characteristics by CFD analysis and the basis for the application of flow induced vibration to the heat recovery steam generator tube array would be prepared from the present CFD analysis. For the previous mentioned purpose, the present CFD analysis introduced a single circular cylinder and calculated with the unsteady laminar flow over the cylinder. The characteristics of vortex shedding and lift and drag fluctuation over the cylinder was investigated. The derived nondimensional PSD was compared with the results of the previous experimental researches and the characteristics of lift and drag PSD over a single circular cylinder was established from the present CFD study.
Heat Exchanger;Circular Cylinder;Flow Induced Vibration;Lift Fluctuation;Drag Fluctuation;Power Spectral Density;Karmann Vortex;Unsteady Laminar Flow;FFT;
 Cited by
The Power Spectral Density Characteristics of Lift and Drag Fluctuation of Fin Tube in a Heat Recovery Steam Generator, Journal of the Korean Institute of Gas, 2016, 20, 2, 23  crossref(new windwow)
R.D. Blevins, R. J. Gibert and B. Villard, "Experiment on vibration of heat exchanger tube arrays in cross-flow", Trans. 6th Int. Conf. on Structural Mechanics in Reactor Technology, Paper B6/9, (1981)

C. Taylor , M.J. Pettigrew, F. Axisa and B. Villard, "Experimental determination of single and two-phase cross flow induced forces on tube raws", Flow Induced Vibration, pp. 31-39, PVP Vol. 104, (1986)

S.S. Chen and J.A. Jendrzejczyk, "Fluid excitation forces acting on square tube array", Journal of Fluids Engineering, Vol. 109/415, (1987) crossref(new window)

F. Axisa, J. Antunes, B. Villard and M. Wullschleger, "Random excitation of heat exchanger tubes by cross-flows", Int. ASME Winter Symposium on Low-Induced Vibrations and Noise, CEACONF-9744, (1988)

S.V. Patankar, "Numerical Heat Transfer and Fluid Flow", pp. 126-131, (1980)

K.B. Lee, B.W. Kim, J.S. Yang, M.K. Kim and S.S. Jang, "A study on flow-induced vibration of tube array in uniform cross flow (I)", Transactions of the KSME B, pp 924-932, Vol. 117, No. 5, (1982)

S.S. Paul, S.J. Ormiston and M.F. Tachi, "Experimental and numerical investigation of turbulent cross-flow in a staggered tube bundle", International Journal of Heat and Fluid Flow, pp 387-414, Vol. 29, (2008) crossref(new window)