Modeling of 2D irregular waves on a sloped bottom

The present work explains and validates a method to numerically reproduce two dimensional  irregular sea states in a wave basin without knowing the paddle motion and with the only the wave elevation measured at the inlet of the wave tank. The free surface elevation is numerically treated, a cut off to the spectrum was applied reduce the number of frequencies is applied and finally a linear reflection analysis is then tapplied with the assumption that the free surface elevation at any location in the domain can be described by a Fourier series.

Three case studies on STAR-CCM+

cDynamics is a small consultancy company with with employees. We work with specialized projects within general numerical analysis, CFD and FEA, mostly directed towards marine, offshore and aquaculture industry.

Self-propulsion simulation with a pre-swirl stator

The ever ongoing quest for more efficient propulsion in the marine sector leads to the development and improvement of energy saving devices such as a pre-swirl stator.  Wärtsila has joined this quest to lower fuel consumption will reduce operating costs and emissions. The targeted market segments are bulk carriers and container ships.