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Coral Mitigates High-Energy Marine Floods: Numerical Analysis on Flow–Coral Interaction

المصدر: المجلة العلمية لجامعة الملك فيصل - العلوم الأساسية والتطبيقية
الناشر: جامعة الملك فيصل
المؤلف الرئيسي: Nandasena, N. A. K. (Author)
مؤلفين آخرين: Chawdhary, Irshaad (Co-Author)
المجلد/العدد: مج23, ع2
محكمة: نعم
الدولة: السعودية
التاريخ الميلادي: 2022
التاريخ الهجري: 1444
الشهر: ديسمبر
الصفحات: 1 - 6
ISSN: 1658-0311
رقم MD: 1351177
نوع المحتوى: بحوث ومقالات
اللغة: الإنجليزية
قواعد المعلومات: science
مواضيع:
كلمات المؤلف المفتاحية:
Marine Flood | Roughness | Coral | Numerical Modelling | Long-Period Waves
رابط المحتوى:
صورة الغلاف QR قانون
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المستخلص: This paper investigates the effect of coral reef roughness on mitigating marine floods by using numerical analysis. The study includes two ocean bathymetries – idealised bathymetry with 1% gradient and real bathymetry – for Gold Coast, Australia. The results indicate that characteristics of the marine flood (wave height and period), coral roughness, and shape of the bathymetry are key to the mitigation of marine floods. Wave height reduction behind the reef and at the shore increases with the incident wave height of the marine flood. The maximum reduction behind the reef is around 60% for both bathymetries for the incident wave height of 4 m. When the incident wave period increases from 10 min to 20 min, the wave height reduction increases to 60% but increases from 20 min to 40 min, decreasing the reduction to as little as 3% behind the reef for the ideal bed condition. However, the marine floods caused by longer period waves can be slowed by higher coral roughness compared to the floods caused by relatively shorter period waves. The wave force reduction behind the reef increases with the incident wave height of the marine flood. The wave force reduction is greater than the wave height reduction behind the reef.

ISSN: 1658-0311

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