부산대학교 도서관

The objective of this study is to establish a quantitative method for analyzing wind energy dissipation rate for the assessment of composition effect in the Coastal forest for damage prevention. The dissipation rate is defined as a ratio of the decreased power at the wake to the total incident kinetic energy per unit time for incident air particles. From the field data of East, West, and South sea coasts from Korean peninsula, the three-dimensional shape of tree is modeled with computer-aided design (CAD) technique, and the consecutive numerical analysis is accomplished using computational fluid dynamics (CFD). Numerical results are compared with those of wind tunnel experiment with an aerodynamic test model, reduced but similar, output with a 3-D printer. Consequently, the correlations between tree density and dissipation rate are obtained for the reference fields of each coasts, which was found to regress in the graph of a logarithmic form.