Effect of Airfoil Parametrization on the Optimization of Counter Rotating Open Rotors
Paper i proceeding, 2019

The present study compares two optimizations performed on Counter Rotating Open Rotors (CRORs) running at the same operating condition. The main difference between the two optimizations is the airfoil profile used to construct the blades. The first, uses the NACA 16 family of airfoils, whereas the second one, uses a parametrized airfoil type, CST. Two independent multi-objective optimizations are carried out using approximately the same computational resources. All the design variables except those concerning the airfoil profile, are kept with the same design freedom so that a fair comparison can be made. Both sets of configurations are aerodynamically optimized for maximum thrust coefficient and efficiency at top of climb conditions. The optimization is performed using multi-objective Differential Evolution (DE) coupled with 3D RANS simulations and Radial Basis Function (RBF) meta-modeling.

differential evolution

multi-objective optimisation

optimisation

counter-rotating-open-rotors

evolutionary algorithms

Författare

Gonzalo Montero Villar

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Daniel Lindblad

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Niklas Andersson

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

AIAA 2019-0698

AIAA SciTech 2019 Forum
San Diego, California, USA,

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Beräkningsmatematik

Strömningsmekanik och akustik

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.2514/6.2019-0698

Mer information

Senast uppdaterat

2019-02-13