Session: 13-01-02 Blue Economy II

Paper Number: 103287

103287 - Numerical Modelling of the Performance of Floating Fish Pen in Harsh Environmental Conditions 

The growing demand for high-quality protein sources, coupled with technological advancements, has recently created the need and facilitated opportunities for offshore aquaculture in high-energy areas. Although based on experience gained through many years of practice in low-energy areas, aquaculture companies prefer to use traditional fish pens in high-energy regions, the short- and long-term performance of the pen and mooring components in harsh environments are not well studied. In this study, a numerical model of a slender fish pen is created in the Finite Element (FE) environment to study the pen’s response to harsh environmental loads, including currents and waves. To assess the reliability of the FE model, a validation exercise was conducted for both current-only and combined current and wave conditions, which led to good agreement between the published data and the modelling conducted in this study. The model is then employed in more than 1500 simulations to analyse various pen arrangements with different angles of attack of waves and currents concerning a range of current intensity and wave height. Further consideration is given to the performance of pens in high current velocity and wave height (e.g. 2 m/s and 3 m) while observing the volumetric changes of the pen and distribution of the tension load in mooring lines.

Presenting Author: Nazhmiddin Nasyrlayev University of Tasmania

Presenting Author Biography: I was born in Turkmenistan and graduated from high school in the north of the country in 2013. I completed my BSc degree in Civil Engineering in the Turkish Republic of Northern Cyprus from the Eastern Mediterranean University. Then I got my MSc degree in Hydraulics from Eskisehir Osmangazi University in Turkey. During my MSc research, I studied computational fluid dynamics and optimisation.

Authors:

Nazhmiddin Nasyrlayev University of Tasmania
Ashley Dyson University of Tasmania
Gholamreza Kefayati University of Tasmania
Ali Tolooiyan University of Tasmania