Numerical and experimental investigations of water hammers in nuclear industry

R Messahel, B Cohen, M Moatamedi, A Boudlal, M Souli, N Aquelet

Abstract


In nuclear and petroleum industries, supply pipes are often exposed to high pressure loading which can cause to the structure high strains, plasticity and even, in the worst scenario, failure. Fast Hydraulic Transient phenomena such as Water Hammers (WHs) are of this type. It generates a pressure wave that propagates in the pipe causing high stress. Such phenomena are of the order of few msecs and numerical simulation can offer a better understanding and an accurate evaluation of the dynamic complex phenomenon including fluid-structure interaction, multi-phase flow, cavitation …

For the last decades, the modeling of phase change taking into account the cavitation effects has been at the centre of many industrial applications (chemical engineering, mechanical engineering, …) and has a direct impact on the industry as it might cause damages to the installation (pumps, propellers, control valves, …). In this paper, numerical simulation using FSI algorithm and One-Fluid Cavitation models ("Cut-Off" and "HEM (Homogeneous Equilibrium Model) Phase-Change" introduced by Saurel et al. [1]) of WHs including cavitation effects is presented.


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References


Saurel, R., Cocchi, J. P. and Butler, P. B. Numerical Study of Cavitation in the Wake of a Hypervelocity Underwater Projectile, Journal of Propulsion and Power, 1999; Vol. 15, No. 4.

Ahuja, V, Hosangadi, A. and Arunajatesan, S. Simulation of cavitation flows using hybrid unstructured meshes, Journal of Fluids Engineering, 2001; 123:331-40. CrossRef

Venkateswaran, S., Lindau, J. W., Kunz, R. F. and Merkle, C. L. Computation of multiphase mixture flows with compressible effects, Journal of Computational Physics 2003; 180:54-77. CrossRef

Senocak, I. and Shyy, W. A pressure-based method for turbulent cavitating flow computations, Journal of Computational Physics, 2003; 176:363-83. CrossRef

Tang, H. S. and Huang, D. A second-order accurate capturing scheme for 1D inviscid flows of gas and water with vacuum zones, Journal of Computational Physics, 1996; 128:301-18. CrossRef

Aanhold, J. E., Meijer, G. J. and Lemmen, P. P. M. Underwater shock response analysis on a floating vessel, Journal of Shock and Vibration, 1998; 5:53-9.

Liu, T. G., Khoo, B. C. and Xie, W. F. Isentropic one-fluid modelling of unsteady cavitating flow, Journal of Computational Physics, 2004; 201:80-108. CrossRef

Schmidt, D. P., Rutland, C. J. and Corradini, M. L. A fully compressible, twodimensional model of small, high speed, cavitating nozzlesn Journal of Atomization and Sprays, 1999; 9:255-76.

Barras, G., Souli, M., Aquelet, N. and Couty, N. Numerical simulation of underwater explosions using an ALE method. The pulsating bubble phenomena, Journal of Ocean Engineering, 2012; 41:53-66. CrossRef

Messahel, R., Cohen, B., Souli, M. and Moatammedi, M. Fluid-structure interaction for water hammers effects in petroleum and nuclear plants, The International Journal of Multiphysics, 2011; 5:377-4. Link

Bergerat, L. Développement d'une méthode numérique compressible pour la Simulation de la cavitation en géométrie complexe, Phd Thesis, ParisTech, 2012.

Wallis, G. B. One-dimensional two-phase flow, McGraw-Hill; 1969.

Simpson, A. R. Large water hammer pressures due to column separation in sloping pipes (transient, cavitation), PhD Thesis, The University of Michigan, 1986.

Bergant, A., Simpson, A. R. and Tijsseling, A. S. Water Hammer with column separation: A review of research in the twentieth century.

Aquelet, N., Souli, M. and Olovson, L. Euler Lagrange coupling with damping effects: Application to slamming problems, Computer Methods in Applied Mechanics and Engineering, 2005, Vol. 195, pp 110-132. CrossRef

Benson, D. J. Computational methods in Lagrangian and Eulerian hydrocodes, Computer Methods in Applied Mechanics and Engineering, 1992; 99:235-394. CrossRef

Von Neumann, J. and Richtmeyer, R. D. A method for the numerical calculation of hydrodynamical shocks. Journal of Applied Physics, 1950; vol. 21, pp. 232. CrossRef

WAHALoads - Two-phase Flow Water Hammer Transients and Induced Loads on Materials and Structures of Nuclear Power Plants: WAHA3 Code Manual.

Hallquist, J.O, LS-DYNA, Theoretical manual. Livermore Software Technology Corporation, Livermore, 1998.

Wagner, W. and Pruss, A. The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use, J. Phys. Chem. Ref. Data, 2002, 31; 387-535. CrossRef

Gale, J. and Tiselj, I. Water Hammer in elastic pipes. International Conference Nuclear Energy for New Europe, 2002.

Altstadt, E., Carl, H. and Weiss, R. Fluid-Structure Interaction Investigations for Pipelines. Technical Report FZR-393, Forschungszentrum Rossendorf, 2003.

Giot, M., Prasser, H. M., Dudlik, A., Ezsol, G., Habip, M., Lemonnier, H., Tiselj, I., Castrillo, F., Van Hove, W., Perezagua, R. and Potapov, S. Two-Phase Flow Water Hammer Transients and Induced Loads on Materials and Structures of Nuclear Power Plants (WAHALoads). Technical report, contract FIKS-CT-2000-00106, 2000.




DOI: http://dx.doi.org/10.1260/1750-9548.9.1.21

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