Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An efficient computational framework for naval shape design and
  optimization problems by means of data-driven reduced order modeling
  techniques   This contribution describes the implementation of a data--driven shape
optimization pipeline in a naval architecture application. We adopt reduced
order models (ROMs) in order to improve the efficiency of the overall
optimization, keeping a modular and equation-free nature to target the
industrial demand. We applied the above mentioned pipeline to a realistic
cruise ship in order to reduce the total drag. We begin by defining the design
space, generated by deforming an initial shape in a parametric way using free
form deformation (FFD). The evaluation of the performance of each new hull is
determined by simulating the flux via finite volume discretization of a
two-phase (water and air) fluid. Since the fluid dynamics model can result very
expensive -- especially dealing with complex industrial geometries -- we
propose also a dynamic mode decomposition (DMD) enhancement to reduce the
computational cost of a single numerical simulation. The real--time computation
is finally achieved by means of proper orthogonal decomposition with Gaussian
process regression (POD-GPR) technique. Thanks to the quick approximation, a
genetic optimization algorithm becomes feasible to converge towards the optimal
shape.

5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex