12/6/2023 0 Comments Flume water device![]() ![]() Nevertheless, for the full range of conditions, the models provide accurate insight into the expected magnitude of attenuation under field conditions. Wave decay models generally overestimated wave attenuation (up to 30%), except for longer wave periods. Current models did not capture the induced hydrodynamics for the full range of wave conditions tested, with the second mat increasing uncertainties. ![]() Wave decay followed an exponential decrease, further enhanced by the second mat. Velocities increased above the ASG, with the gap enhancing velocity (up to 11%) instead of attenuating it. The mats reduced orbital velocities by up to 16% (2 mats), whereby the average reduction of all tested vegetated conditions was low ( \(<10\%\)) compared to the non-vegetated conditions. Velocity structure and wave propagation were measured around one and two ASG mats (separated by a 2-m gap). The aim of this study was then to: 1) analyze hydrodynamic interaction of ASG mats and 2) assess the suitability of contemporary predictive hydrodynamic models. To develop accessible field deployment for restoration, anchored prototype scale ASG mats (coconut mesh) were proposed and tested under differing wave conditions. Present know-how primarily stems from idealized ASG attached to a fixed bed. However, there is no guideline for ASG design, which requires a sound understanding of the inherent hydrodynamics in a submerged environment. Seagrass restoration can be promoted through the use of artificial seagrass (ASG).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |