چکیده مقاله
Coral reefs serve as essential habitats and natural coastal barriers, yet they face increasing threats from anthropogenic pressures and climate change Nature based solutions are crucial for mitigating these stresses This study introduces a biomimetic pillar sponge designed to alter wave hydrodynamics by modulating velocity, vortex patterns, turbulence, and momentum exchange To achieve this goal, a three dimensional Reynolds Averaged Navier Stokes RANS model with a k o SST turbulence closure was employed to simulate complex flow dynamics and 3D streamtraces were utilized to capture detailed vortex structures Results reveal the formation of counter rotating vortex pairs CRVP , Effluent cloud EC , and vertical spirals, all responsible for triggering upwelling/downwelling flows These mechanisms enhance vertical momentum exchange, facilitating the transport of oxygen, nutrients, and temperature regulation across the water column Consequently, such flow modifications can alleviate adverse climate change effects on coral reefs, such as elevated temperatures, pollutant buildup, and nutrient deficits These findings offer novel insights into fluid dynamics in biomimetic systems and suggest promising applications for coastal ecosystem management and climate resilience
کلیدواژهها
نویسندگان
Masoumeh Hashempour
Postdoctoral Fellow, Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran
Morteza Kolahdoozan
Associate Professor, Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran
شیوه ارجاع
Hashempour, Masoumeh and Kolahdoozan, Morteza,1404,3D RANS Modeling of Wave Hydrodynamics Around a Biomimetic Pillar Sponge,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران