Browse > Article
http://dx.doi.org/10.12652/Ksce.2016.36.5.0805

A Study on Stable Generation of Tsunami in Hydraulic/Numerical Wave Tank  

Lee, Woo-Dong (Gyeongsang National University)
Park, Jong-Ryul (National Disaster Management Research Institute)
Jeon, Ho-Seong (Korea Institute of Civil Engineering and Building Technology)
Hur, Dong-Soo (Gyeongsang National University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.36, no.5, 2016 , pp. 805-817 More about this Journal
Abstract
This study considered the existing approximation theories of solitary wave for stable generation of it with different waveforms in a hydraulic/numerical wave tank for coping with the tsunami. Based on the approximation theory equations, two methods were proposed to estimate various waveforms of solitary wave. They estimate different waveforms and flow rates by applying waveform distribution factor and virtual depth factor with the original approximate expressions of solitary wave. Newly proposed estimation methods of solitary wave were applied in the wave generation of hydraulic/numerical wave tank. In the result, it was able to estimate the positional information signal of wave generator in the hydraulic wave tank and to find that the signal was very similar to an input signal of existing hydraulic model experiment. The waveform and velocity of solitary wave was applied to the numerical wave tank in order to generate wave, which enabled generate waveform of tsunami that was not reproduced with existing solitary wave approximation theory and found that the result had high conformity with existing experiment result. Therefore, it was able to validate and verify the two proposed estimation methods to generate stable tsunami in the hydraulic/numerical wave tank.
Keywords
Tsunami; Solitary wave; Wave generation method; Waveform distribution factor; Virtual depth factor;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Allsop, W., Chandler, I. and Zaccaria, M. (2014). "Improvements in the physical modelling of tsunamis and their effects." Proc. 5th Int. Conf. on the Application of Physical Modelling to Prot and Cosatal Protection, HRPP656.
2 Boussinesq, J. (1872). "Theorie des ondes et des remous qui se propagent le long d'un canal rectangulaire horizontal, en communiquant au liquide contenu dans ce canal des vitesses sensiblement pareilles de la surface au fond." Journal de Mathématiques Pures et Appliquees, pp. 55-108 (in French).
3 Brackbill, J. U., Kothe, D. B. and Zemach, C. (1992). "A continuum model for modeling surface tension." J. Comp. Phys., Vol. 100, pp. 335-354.   DOI
4 Brorsen, M. and Larsen, J. (1987). "Source generation of nonlinear gravity waves with the boundary integral equation method." Coastal Eng., Vol. 11, pp. 93-113.   DOI
5 Dean, R. G. and Dalrymple, R. A. (1984). "Water wave mechanics for engineers and scientists." Prentice-Hall, Englewood Cliffs, New Jersey.
6 Fenton, J. (1972). "A ninth-order solution for the solitary wave: Part2." J. Fluid Mech., Vol. 53, pp. 257-271.   DOI
7 Goring, D. G. (1978). "Tsunamis-the propagation of long waves onto a shelf." Rep. KH-R-38, California Institute of Technology.
8 Grimshaw, R. (1971). "The solitary wave in water of variable depth: Part 2." J. Fluid Mech., Vol. 46, pp. 611-622.   DOI
9 Ha, T. M., Kim, H. J. and Cho, Y. S. (2010). "Numerical simulation of solitary wave run-up with an internal wave-maker of navierstokes equations model." J. Korea Water Resources Association, Vol. 43, No. 9, pp. 801-811 (in Korean).   DOI
10 Hur, D. S., Lee, W. D. and Cho, W. C. (2012). "Three-dimensional flow characteristics around permeable submerged breakwaters with open inlet." Ocean Eng., Vol. 44, pp. 100-116.   DOI
11 Kim, D. H. and Lynett, P. J. (2011). "Dispersive and nonhydrostatic pressure effects at the front of surge." J. Hydraul. Eng. Vol. 137, No. 7, pp. 754-765.   DOI
12 Lee, W. D. and Hur, D. S. (2014). "Development of 3-d hydrodynamical model for understanding numerical analysis of density current due to salinity and temperature and its verification." J. Korean Society of Civil Engineers, KSCE, Vol. 34, No. 3, pp. 859-871 (in Korean).   DOI
13 Laitone, E. V. (1963). "Higher order approximation to nonlinear waves and the limiting heights of Cnoidal, Solitary and Stokes' waves." Beach Erosion Board, U.S. Department of the Army, Corps of Engineers, Technical Memorandum No. 133.
14 Lee, J. W. and Cho, Y. S. (2013). "Run-up heights of solitary with a hydrodynamic pressure model." J. the Korean Society of Hazard Mitigation, Vol. 13, No. 1, pp. 347-352 (in Korean).   DOI
15 Lee, K. H., Kim, C. H., Jeong, S. H. and Kim, D. S. (2008). "Wave control by submerged breakwater under the solitary wave(tsunami) action." J. Korean Society of Civil Engineers, KSCE, Vol. 28, No. 3B, pp. 323-334 (in Korean).
16 McCowan, J. (1891). "On the solitary wave." London, Edinburgh and Dublin Philosophical Magazine and Journal of Science, Vol. 32, No. 5, pp. 45-58.   DOI
17 Lee, W. D., Hur, D. S. and Goo, N. H. (2014). "Numerical study on tsunami run-up height on impermeable/permeable slope." J. Korean Society of Coastal Disaster Prevention, Vol. 1, No. 1, pp. 1-9 (in Korean).
18 Lee, W. D., Hur, D. S. and Jang, B. J. (2015). "A numerical simulation on delay time of tsunami propagation due to permeable submerged breakwater." J. Korean Society of Coastal Disaster Prevention, Vol. 2, No. 4, pp. 197-205 (in Korean).
19 Liu, H., Sakashita, T. and Sato, S. (2014). "An experimental study on the tsunami boulder movement." Proc. 34th int. Conf. Coastal Eng., ASCE.
20 Nouri, Y., Nistor, I. and Palermo, D. (2010). "Experimental investigation of tsunami impact on free standing structures." Coastal Eng. Journal, JSCE, Vol. 52, No. 1, pp. 43-70.   DOI
21 Rossetto, T., Allsop, W., Charvet, I. and Robinson, D. (2011). "Physical modelling of tsunami using a new pneumatic wave generator." Coastal Eng., Vol. 58, pp. 517-527.   DOI
22 O'Donoghue, T., Pokrajac, D. and Hondebrink, L. J. (2010). "Laboratory and numerical study of dambreak-generated swash on impermeable slopes." Coastal Eng., Vol. 57, pp. 513-530.   DOI
23 Ohyama, T. and Nadaoka, K. (1991). "Development of a numerical wave tank for analysis of non-linear and irregular wave field." Fluid Dynamics Research, Vol. 8, pp. 231-251.   DOI
24 Park, H. S., Cox, T. D., Lynett, P. J., Wiebe, D. M. and Shin, S. W. (2013). "Tsunami inundation modeling in constructed environments: A physical and numerical comparison of free-surface elevation, velocity, and momentum flux." Coastal Eng., Vol. 79, pp. 9-21.   DOI
25 Scott Russell, J. (1844). "On waves." Reports to the British Association, pp. 311-390.
26 St-Germain, P., Nistor, I., Townsend, R. and Shibayama, T. (2014). "Smoothed-particle hydrodynamics numerical modeling of structures impacted by tsunami bores." J. Waterway, Port, Coastal, Ocean Eng., ASCE, Vol. 140, No. 1, pp. 66-81.   DOI