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Projecte llegit

Títol: 3D numerical simulation of a jet engine axial compression stage

Estudiants que han llegit aquest projecte:

Director/a: MELLIBOVSKY ELSTEIN, FERNANDO PABLO

Departament: FIS

Títol: 3D numerical simulation of a jet engine axial compression stage

Data inici oferta: 27-11-2014     Data finalització oferta: 27-06-2015


Estudis d'assignació del projecte:
    Tipus: Individual
     
    Lloc de realització: EETAC
     
    Paraules clau:
    jet, engine, propulsion, compressor, simulation
     
    Descripció del contingut i pla d'activitats:
    The aim of this work is to undertake three-dimensional simulation
    of a compression stage of a jet engine axial compressor in order
    to study the air flow, assess blade performance at various
    working conditions, and validate the use of computational fluid
    dynamics tools in capturing the physics of the flow and
    reproducing theoretical and experimental results.

    The target geometry (a compression stage of a real jet engine)
    will be initially analysed from a theoretical perspective to
    anticipate expected performance.

    The numerical study will be done using a commercial code (ANSYS)
    and will initially focus on reproducing the stage behaviour at
    design point. Off-design performances will be evaluated by
    changing working conditions (blade rotation speed and target
    massflow).

    The bulk of the study will be three dimensional, although a
    number of computations on a simplified two-dimensional model for
    a cross-section of the blade/vane pair may be done for
    comparison.

    As a result, a complete description of the compressor map should
    be numerically accessible, allowing for a better understanding of
    phenomena such as surge or flow detachment.


    Working plan:
    1 Motivate the study
    2 Analyse the compression stage from a theoretical viewpoint
    3 Model the real compressor stage
    4 Simulate and adjust the design point operation
    5 Scan for varying operation conditions to draw the compressor
    map
    6 Analyse results
     
    Overview (resum en anglès):
    The aim of this work is to undertake three-dimensional simulation
    of a compression stage of a jet engine axial compressor in order
    to study the air flow, assess blade performance at various
    working conditions, and validate the use of computational fluid
    dynamics tools in capturing the physics of the flow and
    reproducing theoretical and experimental results.

    The target geometry (a compression stage of a real jet engine)
    will be initially analysed from a theoretical perspective to
    anticipate expected performance.

    The numerical study will be done using a commercial code (ANSYS)
    and will initially focus on reproducing the stage behaviour at
    design point. Off-design performances will be evaluated by
    changing working conditions (blade rotation speed and target
    massflow).

    The bulk of the study will be three dimensional, although a
    number of computations on a simplified two-dimensional model for
    a cross-section of the blade/vane pair may be done for
    comparison.

    As a result, a complete description of the compressor map should
    be numerically accessible, allowing for a better understanding of
    phenomena such as surge or flow detachment.

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