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Miguel PESTANA

Ecully

En résumé

My academic training is mostly focused on the theory of aerodynamics, aeroacoustics and numerical simulation and so it has promoted my critical thinking about the results obtained and their domains of validity with respect to the hypothesis made.

I also did a gap year internship in two companies (Airbus and Altran) in the field of aerodynamic optimization. I am currently a research engineer in aeroacoustics at the LMFA of Ecole Centrale Lyon.

All the skills I acquired will allow me to work constructively and effectively in the field of aerodynamics and aeroacoustics.

Entreprises

  • Ecole Centrale de Lyon - Research Engineer

    Ecully 2015 - maintenant ● Development and implementation of analytical models for rotor-stator interaction noise in duct flows;
    ● Investigate and quantify the impact of heterogeneous stator vanes on acoustic emissions through two mechanisms:
    → Impact of rotor wakes on the stator - wake's interaction noise;
    → Interaction of the stator's upstream flow distortion on the rotor - potential interaction noise;

    ● Description of heterogeneous distortion fields;
    ● Modelling of an airfoil response passing through a downstream disturbed field (trailing edge contamination);
    ● Far-field noise achieved by means of an acoustic analogy based approach for duct flows;

    This internship is part of the industrial chair ADOPSYS (Aeroacoustics of Ducted and Open-rotor Propulsion SYStems) between Safran / Snecma and École Centrale de Lyon.

  • Altran France - Trainee

    Vélizy-Villacoublay 2014 - 2014 ● Developed in a NURBS based geometrical engine for complex shape parameterization (Computer Aided Design);
    ● Created complex 3D shape parametric models with high level controlling parameters:
    → Airbus A350 Horizontal Tail Plane: parameterization, trim-state computation and aerodynamic optimization:
    - Achieved an accurate CAD model and a robust mesh deformation process;
    - Performed an automatic aircraft trimming with the developed model;
    - Tested gradient (LBFGS and SLSQP) and non-gradient (SBPLX) based algorithms for optimization.
    → Airbus A330 Winglet: parameterized the winglet using complex parametric construction laws;
    - Assessed the model with an exhaustive shape quality analysis and mesh deformation tests;
    - Supported and guided the Airbus wing design department with the new developed model.

  • Airbus - Trainee

    Blagnac 2013 - 2014 Aerodynamic Shape Optimization of the RAE2822 Airfoil in Transonic Viscous Flow

    ● Conducted a full optimization study using gradient-based algorithms with the adjoint state capability;
    ● Achieved a total drag improvement of 50% compliant with 3 constraints (aerodynamic and geometric);
    ● Built specific structured meshes for high accuracy flow resolution and aerodynamic performances computation;
    ● Evaluated the impact of the parameterization, gradient's accuracy and mesh level in the optimization process;
    ● Analyzed the shape quality (from a designer point of view) and the optimization convergence (Karush-Kuhn-Tucker conditions);
    ● Performed a mesh convergence study in the initial and optimized shapes - demonstrated an independence of the optimized solution w.r.t. the mesh level (within 0.1 drag counts);

    This work was a contribution for a common paper between Airbus and ONERA to solve several aerodynamic shape optimization problems proposed by the AIAA ADODG (Aerodynamic Design Optimization Discussion Group).

Formations

Réseau

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