INFLUENCE OF STOKES DRIFT ON SALT WEDGE INTRUSION EVALUATED USING FULLY-NONLINEAR AND STRONGLY-DISPERSIVE WAVE EQUATIONS
Proceedings of the 32nd International Conference
PDF

Keywords

variable principle
radiation stress
salt-wedge intrusi

How to Cite

Nakayama, K., Shintani, T., Kakinuma, T., Maruya, Y., Yonome, Y., Yonemoto, M., & Nakauchi, I. (2011). INFLUENCE OF STOKES DRIFT ON SALT WEDGE INTRUSION EVALUATED USING FULLY-NONLINEAR AND STRONGLY-DISPERSIVE WAVE EQUATIONS. Coastal Engineering Proceedings, 1(32), currents.34. https://doi.org/10.9753/icce.v32.currents.34

Abstract

This paper describes the influence of surface waves on salt-wedge intrusion in terms of radiation stress. Radiation stress may increase salt-wedge intrusion when surface waves propagate up a river. This study thus aims to reveal the effect of radiation stress on the distance of salt-wedge intrusion by using fully nonlinear strongly dispersive internal wave equations and three-dimensional numerical computation model, Fantom3D. Fully nonlinear strongly dispersive internal wave model reveals the possibility that large radiation stress is induced near the river mouth and increases the distance of salt-wedge intrusion. Three-dimensional numerical model also demonstrates that there is a significant difference in the intrusion distance by taking into account radiation stress.
https://doi.org/10.9753/icce.v32.currents.34
PDF

References

Ikenaga H., J. Ohtsuka, D. Misawa, K. Uchijima, K. Kashiyama, and T. Yamada. 1998. Study on the characteristics of salinity intrusion and change of salt wedge in Abashiri River, Annual Journal of Hydraulic Engineering, JSCE, 42, 775-780.

Ikenaga H., K. Mukouyama, S. Ohshima, and T. Yamada. 1999. Prediction of the long term behaviors of the density interface in a brackish lake, Journal of Hydraulic, Coastal and Environmental Engineering, JSCE, 628, 77-96.

Kakinuma T. 2001. Math calculation of behavior of internal wave in permeability beach, Proceedings of Coastal Engineering, JSCE, 48, 146-150. http://dx.doi.org/10.2208/proce1989.48.146

Kakinuma T., and K. Nakayama. 2007. Numerical simulation of internal waves using a set of fully nonlinear internal wave equations, Annual Journal of Hydraulic Engineering, JSCE, 51, 169-174.

Kuwajima T., K. Takahashi, S. Miyajima, M. Hirano, and T. Yamada. 1993. Long and short term behavior of Lake Abashiri with two layers of fresh and salt water, Proceedings of Hydraulic Engineering, JSCE, 37, 305-312. http://dx.doi.org/10.2208/prohe.37.305

Luke, J.C. 1967. A variational principle for a fluid with a free surface, Journal of Fluid Mechanics, 27, Maruya Y., K. Nakayama, D. Horimatsu, S. Yonome, and M. Yonemoto. 2010. Influence evaluation of wind stress and inflow from river on stratification in Lake Abashiri, Annual Journal of Hydraulic Engineering, JSCE, 54, 1393-1398. 395-397. doi:10.1017/S0022112067000412. http://dx.doi.org/10.1017/S0022112067000412

Nakayama K., and T. Kakinuma. 2010. Internal waves in a two-layer system using fully nonlinear internal-wave equations, International Journal for Numerical Methods in Fluids, 62:5, 574-590. doi: 10.1002/fld.2037.http://dx.doi.org/10.1002/fld.2037

Peregrine, D.H. 1967. Long waves on a beach, Journal of Fluid Mechanics Digital Archive, 27:4, 815-827. doi: 10.1017/S0022112067002605. http://dx.doi.org/10.1017/S0022112067002605

Sakuma N., K. Nakayama, T. Kakinuma, and T. Shintani. 2010. Influence of wind waves on salt wedge intrusion in Abashiri River, Proceedings of Hokkaido chapter of the Japan society of Civil Engineers, JSCE, B-52.

Shintani T., and K. Nakayama. 2009. Development and verification of object-oriented environment hydrodynamic model, Annual Journal of Hydraulic Engineering, JSCE, 53, 1267-1272.

Yoshikawa Y., and Y. Watanabe. 2006. Field observation on salinity intrusion at ice-covered rivers, Advances in River Engineering, JSCE, 12, 157-162.

Yoshikawa Y., H. Yasuda, and Y. Watanabe. 2007. Impact of a mesh structure on salinity intrusion in Abashiri River, Advances in River Engineering, JSCE, 13, 7-12.

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.