The penguin is the fastest underwater swimmer among wing-propelled diving birds. To figure out mechanism for its excellent swimming, hydrodynamic performance of a wing numerically investigated using an immersed boundary method with incompressible flow solver. This study examines effects feathering, flapping, and Strouhal number (St) under preset motion. Results indicate that feathering primary ...

A breakwater is a coastal building that aims to break up or withstand wave energy enters the beach so characteristics of incoming waves are by calculations and can reduce abrasion on shoreline. Designing floating very complicated because it depends many aspects. These fundamental aspects depend each other, if one these changes, integrity structure will also change. One magnitude transmission re...

A numerical approach is established to study the hydrodynamic performance using an amphibious transport vehicle (ATV) as a research object. Numerical calculation based on Reynolds average Navier–Stokes method studied in terms of first layer grid height, surface meshing partition scale, and prismatic coefficient. Through uncertainty analysis, correctness convergence are verified. Towing tests co...

Abstract This study presents a design scheme for multi-module connected floating dock, comprising two configurations the lower body: transverse and longitudinal floats. An articulated connection between modules is also included. The hydrodynamic performance of dock with these compared analyzed by taking South China Sea as an example. Frequency time-domain analysis methods are employed, consider...