| Title |
A Study on Stable Generation of Tsunami in Hydraulic/Numerical Wave Tank |
| Authors |
이우동(Lee, Woo-Dong) ; 박종률(Park, Jong-Ryul) ; 전호성(Jeon, Ho-Seong) ; 허동수(Hur, Dong-Soo) |
| DOI |
https://doi.org/10.12652/Ksce.2016.36.5.0805 |
| Keywords |
쓰나미;고립파;조파방법;파형분포조절계수;가상수심계수 Tsunami;Solitary wave;Wave generation method;Waveform distribution factor;Virtual depth factor |
| 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. |