Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Design optimisation and resource assessment for tidal-stream renewable
  energy farms using a new continuous turbine approach   This paper presents a new approach for optimising the design of tidal stream
turbine farms. In this approach, the turbine farm is represented by a turbine
density function that specifies the number of turbines per unit area and an
associated continuous locally-enhanced bottom friction field. The farm design
question is formulated as a mathematical optimisation problem constrained by
the shallow water equations and solved with efficient, gradient-based
optimisation methods. The resulting method is accurate, computationally
efficient, allows complex installation constraints, and supports different goal
quantities such as to maximise power or profit. The outputs of the optimisation
are the optimal number of turbines, their location within the farm, the overall
farm profit, the farm's power extraction, and the installation cost. We
demonstrate the capabilities of the method on a validated numerical model of
the Pentland Firth, Scotland. We optimise the design of four tidal farms
simultaneously, as well as individually, and study how farms in close proximity
may impact upon one another.

13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics