English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Concern for the environment and new ways of electricity generation, have led to studies of renewable energy sources, among these the Wave Energy Converters (WECs) are an option, however there are still many challenges to define how best to realize the conversion of the energy of the waves into electricity. In this work, a numerical study was carried out with the purpose of maximizing the available power ( P d ) of a two-ramp overtopping device, considering the area fraction of ramps (ϕ 1 and ϕ 2 ) equal to 0.0006 and the ratio between height and length of the ramps ( H 1 / L 1 = H 2 / L 2 ) equal to 0.3. The distance between the ramps ( L g ) was varied in three values: 1.0; 1.5 and 2.0 m, besides three values for the free surface of water ( h ): 9.8; 10.0 and 10.2 m; simulating a tidal effect. The Constructal Design and Exhaustive Search methods were used, respectively, in the geometric evaluation (determination of a search field) and optimization. For the wave generation, the Second Order Stokes Theory was used, with wave period ( T ) of 7.5 s and wave height ( H ) 1.0 m. The results showed that there was no accumulation of water in the upper ramp of the device, in addition, with the increase of L g there was an increase of P d in h = 10.0 and 10.2 m, and P d kept practically constant in h = 9, 8 m. And, as expected, with increasing of h , there was an increase in P d .

GEOMETRIC EVALUATION USING CONSTRUCTAL DESIGN OF A COASTAL OVERTOPPING DEVICE WITH DOUBLE RAMP CONSIDERING A REGULAR WAVE AND TIDAL VARIATION