| Improvements on Mean Free Wave Surface Modeling |
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| 作者姓名： | DONG Guo-hai |
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| 作者单位： | The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，Department of Civil Engineering，The University of Western Australia，Nedlands，Western Australia 6907，Australia |
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| 摘 要： | Some new results of the modeling of mean free surface of waves or wave set-up are presented. The stream funetion wave theory is applied to incident short waves. The limiting wave steepness is adopted as the wave breaker indcx in the calculation of wave breaking dissipation. The model is based on Roelvink (1993), but the numerical techniques used in the solution are based on the Weighted-Average Flux (WAF) method (Watson et al. , 1992), with Time-Operator-Split-ting (TOS) used for the treatment of the source terms. This method allows a small number of eomputational points to be used, and is particularly efficient in modeling wave set-up. The short wave (or incident primary wave) energy equation is solved by use of a traditional Lax-Wendroff technique. The present model is found to be satisfactory compared with the measurements conducted by Stive (1983).
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Improvements on Mean Free Wave Surface Modeling |
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| DONG Guo-hai TENG Bin
and CHENG Liang
The State Key Laboratory of Coastal and Offshore Engineering,Dalum University of Technology,Dalian ,China.Improvements on Mean Free Wave Surface Modeling[J].China Ocean Engineering,2002,16(4):549-560. |
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| Authors: | DONG Guo-hai TENG Bin
and CHENG Liang
The State Key Laboratory of Coastal and Offshore Engineering Dalum University of Technology Dalian China |
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| Institution: | The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023 , China The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023 , China Department of Civil Engineering, The University of Western Australia, Nedlands, Western Australia 6907 , Australia |
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| Abstract: | Some new results of the modeling of mean free surface of waves or wave set-up are presented. The stream funetion wave theory is applied to incident short waves. The limiting wave steepness is adopted as the wave breaker indcx in the calculation of wave breaking dissipation. The model is based on Roelvink (1993), but the numerical techniques used in the solution are based on the Weighted-Average Flux (WAF) method (Watson et al. , 1992), with Time-Operator-Split-ting (TOS) used for the treatment of the source terms. This method allows a small number of eomputational points to be used, and is particularly efficient in modeling wave set-up. The short wave (or incident primary wave) energy equation is solved by use of a traditional Lax-Wendroff technique. The present model is found to be satisfactory compared with the measurements conducted by Stive (1983). |
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| Keywords: | mean free surface radiation stress wave breaker index limiting wave steepness stream function wave theory |
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