مدلسازی عددی پیشروی موج بر روی دیوار ساحلی و موج‌شکن مستغرق با استفاده از مدل WCSPH

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه مهندسی عمران، دانشکده فنی مهندسی، دانشگاه خلیج فارس، خیابان شهید ماهینی، بوشهر

2 دانشیار مهندسی سواحل، دانشگاه صنعتی امیرکبیر

چکیده

در این مقاله از یک مدل عددی لاگرانژی بدون شبکه، به نام مدل هیدرودینامیک ذرات هموار نسبتاً تراکم‌پذیر (WCSPH) برای شبیه سازی پیشروی موج تنها بر روی دیوار ساحلی شیب‌دار و همچنین پیشروی موج منظم بر روی موج‌شکن مستغرق نفوذناپذیر استفاده شده است. برای شبیه‌سازی آشفتگی سیال، از مدل آشفتگی SPS که بوسیله تئوری شبیه‌سازی گردابه‌ای بزرگ (LES) بدست آمده، استفاده شده است. در تحقیق حاضر، برای بررسی دقت مدل در شبیه‌سازی پیشروی موج بر روی موج‌شکن مستغرق نفوذناپذیر و دیوار ساحلی، نتایج مدل عددی حاضر با نتایج آزمایشگاهی مورد مقایسه قرار گرفته است. همچنین نتایج مدل عددی حاضر با نتایج مدل عددی Shen وهمکارانش (2004) مورد مقایسه قرار گرفت، که نتایج مدل عددی حاضر از تطابق بهتری با نتایج آزمایشگاهی برخوردار بود. نتایج این تحقیق نشان داد که مدل عددی تهیه شده، ابزاری قوی جهت شبیه‌سازی پیشروی موج بر روی سازه های ساحلی می‌باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Numerical modeling of wave propagation over sea wall and submerged breakwater using WCSPH

نویسندگان [English]

  • Amin Mahmoudi 1
  • Mohammad Javad Ketabdari 2
1 Civil Engineering Department, Persian Gulf University,, Bushehr
2 Faculty of Marine Technology, Amirkabir University of Technology, Tehran
چکیده [English]

In this paper, a linear Lagrangian numerical model is used for simulating the solitary wave propagation over the sloped sea wall, as well as the regular wave propagation over an Impermeable submerged breakwater, called the relatively compact (GCM) hydrodynamic model of relatively compact particles (WCSPH). To simulate fluid turbulence, the SPS turbulence model, which was obtained by large eddy simulation (LES) approach, was used. The results of numerical simulations were compared with laboratory experiments. Also, the results of present numerical model were compared with the numerical model Shen et al. (2004). The results shown, the WCSPH computations produce better results than those of model Shen et al. (2004), with respect to the experimental data. The results of this study show that WCSPH method provides a useful tool to investigate the wave propagation over coastal structures.

کلیدواژه‌ها [English]

  • Numerical modelling
  • smoothed particle hydrodynamic
  • sea wall
  • submerged breakwaters
  • wave propagation

مراجع

[1] Christou, M., Swan, C., Gudmestad, O.T., "The interaction of surface water waves with submerged breakwaters", Coastal Engineering, 55, 945–958, 2008.
[2] Carević, D., Pršić, M., Ocvirk, E., "Modelling of Wave Interaction with Submerged Breakwater Using MIKE 21 BW", International Symposium on Water Management and Hydraulic Engineering, Ohrid/Macedonia, 2009.
[3] Cao, Y.G., Jiang, Ch.B., Bai, Y.Ch., "Numerical study on flow structure near two impermeable trapezoid submerged breakwaters on slop bottoms", Journal of Hydrodynamics, 9th International Conference on Hydrodynamics October 11-15, Shanghai, China, 2010.
[4] Jie, Ch., Changbo, J., Shixiong, U.,  Wenwei, H.,"Numerical study on the characteristics of flow field and wave propagation near submerged breakwater on slope", Acta Oceanol. Sin., Vol.29, No.1, p.88-99, 2010.
[5] Wiryanto, L. H.,"Wave propagation passing over a submerged porous breakwater", Journal of Engineering Mathematics, Vol. 70, pp 129-136, 2010.
[6] Hajivalie, F., Yeganeh-Bakhtiary, A., Bricker., J.,"Numerical Study of the Effect of Submerged Vertical Breakwater Dimension on Wave Hydrodynamics and Vortex Generation". Coastal Engineering Journal, Vol. 57, No. 3, 2015.
[7] Jia, Q., Dong, Sh., Luo, X.,  Soares, C.G., "Wave transformation over submerged breakwaters by the constrained interpolation profile method", Ocean Engineering, 136 , 294–303, 2017.
[8] Yueh, C-Y., Chuang, S-H., Wen, C-C., "Bragg reflection of water waves due to submerged wavy plate breakwater", Journal of Hydro-environment Research, Vol. 21, p. 52-59, 2018.
[9] Wang, J., He, G., You, R., Liu, P., "Numerical study on interaction of a solitary wave with the submerged obstacle", Ocean Engineering 158, 1–14, 2018.
[10] Shao, S., "Incompressible SPH simulation of wave breaking and overtopping with turbulence modeling", International Journal for Numerical Methods in Fluids, 50, 597–621, 2006.
[11] Crespo, A.J.C., Gomez-Gesteira, M., Dalrymple, R.A., "3D SPH Simulation of large waves mitigation with a dike",  Journal of Hydraulic Research, Vol. 45, No. 5, pp. 631–642, 2007.
[12] Shao, S, "Incompressible SPH flow model for wave interactions with porous media", Coastal Engineering, 57, 304–316, 2010.
[13] Kim, N.H., Kim, S.R.,  Ko, H.S., "Numerical Simulation of wave transmission over a submerged breakwater in wave flume by using SPH method", The 2010 KSCE Annual Conference Journal, pp.2289-2292, Incheon, Korea, 2010.
[14] Liu, X.,  Xu, H., Shao, S.,  Lin, P.,"An improved incompressible SPH model for simulation of wave–structure interaction", Computers & Fluids, Vol 71, pp113–123, 2013.
[15] Mahmoudi, A., Hakimzadeh, H., Ketabdari, M. J., "Simulation of Wave Propagation over a Submerged Breakwater on a Sloped Bed by SPH Method", International Journal of Offshore and Polar Engineering, Vol. 23, No. 4, pp. 286–291, 2013.
[16] Mansouri, A., Aminnejad, B., "Interaction of Submerged Breakwater by a Solitary Wave Using WCSPH Method", Modelling and Simulation in Engineering, Vol. 2014, Article ID 524824, 2014.
[17] Mahmoudi,A., Hakimzade,H., Ketabdari, M.J.,  Etemad-Shahidi,A.,  Cartwright, N., Abyn, H., "Weakly-compressible SPH and Experimental modeling of periodic wave breaking on a plane slope",  International Journal of Maritime Technolog, Vol.5, pp. 63-76, 2016.
[18] Yeganeh-Bakhtiary, A., Houshangi, H., Hajivalie, F., Abolfathi, S., "A Numerical Study on Hydrodynamics of Standing Wavesin Front of Caisson Breakwaters with WCSPH Model", Coastal Engineering Journal, Vol. 59, No. 1, 2017.
 [19] Wendland, H., " Piecewiese polynomial, positive definite and compactly supported radial functions of minimal degree", Advances in computational Mathematics, Vol. 4, p. 389– 396, 1995.
[20] Monaghan, J. J., "Simulating free surface flows with SPH", Journal Computational Physics, 110, pp. 399-406, 1994.
[21] Lo, E., Shao, S., "Simulation of near-shore solitary wave mechanics by an incompressible SPH method", Applied Ocean Research, 24, 275-286, 2002.
[22] Dalrymple, R. A., Rogers, B.,"Numerical modeling of water waves with the SPH method", Coastal Engineering, 53, 141-147, 2006.
[23] Xu, R., "An improved incompressible smoothed particle hydrodynamics method and its application in free-surface simulations", PhD Dissertation, University of Manchester, UK. 2010.
[24] Liu S.X., Wang X.T., Li M.G., Guo M.Y., "Active absorption wave maker system for irregular waves", China Ocean Engineering, Vol 17, No 2, pp 203-214, 2003.
[25] Li, Y. Raichlen, F., "Solitary wave run-up on plane slopes", Journal of Waterway Port, Coastal and Ocean Engineering, Vol.127, pp. 33-44, 2001.
[26] Ohyama, T., Kioka, W., Tada, A., "Applicability of numerical models to nonlinear dispersive waves", Coastal Engineering, Vol. 24, p. 297–313, 1995.
[27] Shen, Y.M., Ng, C.O., Zheng, Y.H., "Simulation of wave propagation over a submerged bar using the VOF method with a two-equation  turbulence modeling", Ocean Engineering, 31, 87–95, 2004.

فایل ها

سابقه مقاله

  • تاریخ دریافت: 03 فروردین 1399
  • تاریخ بازنگری: 28 مرداد 1399
  • تاریخ پذیرش: 31 تیر 1399

اشتراک گذاری

ارجاع به این مقاله

آمار