NUMERICAL SIMULATION OF SEAWALL- BEACH PROFILE INTERACTION IN RUNUP ZONE

  • Berna Ayat Aydogan Yildiz Technical University
  • Nobuhisa Kobayashi University of Delaware
  • Yalçın Yuksel Yıldız Technical University
  • Burak Aydoğan Yıldız Technical University
Keywords: seawall, CSHORE, beach profile, sediment transport, scour

Abstract

This study aimed to determine beach response in the presence of a vertical wall placed in the run-up zone. The responses of natural beach and the beach with a seawall with two different configurations were studied numerically. The capability and limitation of the cross-shore numerical model CSHORE in simulating the cross-shore transformation and the beach evolution in front of a seawall situated inside the surf zone was examined. Numerical model results were compared with small scale laboratory tests (Yuksel et. al, 2014). Offshore transport was observed in all three tests and the model was shown to predict the same trends in profile evolution. Scour depth in front of the vertical wall was correctly captured by the numerical model.

References

Barnett, M.R., and Wang, H. 1988. Effects of a vertical seawall on profile response, Proceedings of 21st International Conference on Coastal Engineering, ASCE, 1493-1507.

Hicks, B.S., Kobayashi, N., Puleo, J.A., and Farhadzadeh, A. 2010. Cross-shore transport on gravel beaches, Proceedings of 32th International Conference on Coastal Engineering, ASCE.

Johnson, B.D., Kobayashi, N., and Gravens, M.B. 2012. Cross-Shore Numerical Model CSHORE for Waves, Currents, Sediment Transport and Beach Profile Evolution, Coastal and Hydraulics Laboratory, ERDC/CHL TR-12-22.

Kobayashi, N. 2009. Documentation of cross-shore numerical model CSHORE. Research Report No. CACR-09-06, Center for Applied Coastal Research, University of Delaware.

Saitoh, T., and Kobayashi, N. 2012. Wave Transformation and Cross-Shore Sediment Transport on Sloping Beach in Front of Vertical Wall, Journal of Coastal Research, 28(2), 354-359.

Yuksel, Y., Çevik, E., Aydoğan, B., Kızılöz, B., and Şenturk, E. 2012. Seawall-Beach Profile interaction on run-up zone, Proceedings of ISOPE 2012, Rhodes, Greece.

Yuksel, Y., Yuksel, Z.T., Çevik, E., Ayat, B., Aydoğan, B., Guner, H.A.A., Çelikoğlu, Y., and Ä°ÅŸlek, F. 2014. Seawall and beach profile interaction in run-up region, Proceedings of 34th International Conference on Coastal Engineering, ASCE.

Published
2017-06-23
How to Cite
Ayat Aydogan, B., Kobayashi, N., Yuksel, Y., & Aydoğan, B. (2017). NUMERICAL SIMULATION OF SEAWALL- BEACH PROFILE INTERACTION IN RUNUP ZONE. Coastal Engineering Proceedings, 1(35), sediment.21. https://doi.org/10.9753/icce.v35.sediment.21