Deadline for registration: 15 days before the starting date of each training
Duration : 3 days / (21 hours)
The objective is to provide some basics about the numerical simulation of unsteady complex flow in turbomachinery; both for compressors and turbines components. The first part is dedicated to a review of the flow physics that take place in turbomachines (rotor/stator intercations, aerodynamics instabilities, aero-elasticity, turbulence, etc.), providing some guidelines to help designers and scientists to understand and predict these flows. The second part proposes a review of existing methods to compute the flow in these components. State-of-the-art techniques are presented: RANS and LES modeling, harmonic balance technique, etc. Some other emergent techniques (uncertainty quantification, multiphysics and multi-codes simulations) are also discussed.
This training session is for engineers, physicists, computer and numerical analysts.
Basic knowledges in the field of CFD as well as fluid mechanics.
- Trainees/PhDs/PostDocs : 150 €
- CERFACS shareholders/CNRS/INRIA : 450 €
- Public : 900 €
(Every day from 9h to 17h30)
Turbomachinery flow physics
- Basics about turbomachinery: operating point, performance characteristics, surge line, etc
- Review of flow phenomena: rotor/stator interactions, wakes and potential effects, transonic flows, aeroelastics phenomema, unsteable behavior ( surge and rotating stall), aero-thermics.
- Basics abut RANS and LES modeling
- Steady flow simulation: mixing plane technique
- Unsteady flow simulation: phase-lagged method, sliding mesh, Harmonic Balance Technique
- Multiphysics : aero-elasticity, conjugate heat transfer
- RANS/LES code coupling
- Methods for uncertainty quantifications.
- Unstructured and structured approach comparison