Abstract
Optimization theory is applied to a coastal engineering problem that is the design of a port. This approach was applied to the redesign of La Turballe Port in order to increase the exploitable surface area and simultaneously reduce the occurrence of long waves within the port. Having defined the cost function as a weighted function of wave amplitude and with the chosen parameterization of the port, results show that an extended jetty and a widened mole yield a unique optimal solution. This work demonstrates that numerical optimization may be quick and efficient in the identification of port solutions consistent with classic engineering even in the context of complex problems.
Highlights
When designing a port, an extensive study should be conducted to ensure a smooth functioning of services, improve the experience of its users, and provide sufficient protection of the port
Additional difficulties include the large number of geometric transformations considered in such a study; employing a classic engineering approach could be difficult and time-consuming, requiring a large number of exploratory numerical simulations forced by a large range of different weather and sea conditions
This paper presents one such study where the focus is on the minimization of long wave energy within La Turballe Port, situated in North-Western France
Summary
An extensive study should be conducted to ensure a smooth functioning of services, improve the experience of its users, and provide sufficient protection of the port. The term optimization in the field of coastal dynamics refers to the transformation of the natural seabed or the geometric and rheological properties of artificial structures present in ports or at the coast and leads to the minimization of a scalar quantity. Ports are enlarged to increase their exploitable surface area. This increase can be achieved with a second objective in mind. Additional difficulties include the large number of geometric transformations considered in such a study; employing a classic engineering approach could be difficult and time-consuming, requiring a large number of exploratory numerical simulations forced by a large range of different weather and sea conditions
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