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ON SIMULATING COMPRESSIBLE FLOWS WITH A DENSITY BASED SOLVER
KTH, School of Engineering Sciences (SCI), Mechanics.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A coupled density based solver in the framework of foam-extend is used to perform simulations of transonic flows. The solver is based on an explicit and time-accurate algorithm and is coupled to a compressible Unsteady Reynolds-Averaged Navier-Stokes (URANS) and a Large Eddy Simulation (LES) module. The solver is first attested on canonical compressible flow scenarios such as a 1-D shock tube and the transonic flow through a 2-D channel. Following this, a 2-D URANS simulation of the flow within the passages of a High Pressure Turbine Nozzle Guide Vane (HPT-NGV) is performed and compared against experimental data. Finally, preliminary results of a 3-D LES on a simplified geometry of the HPT-NGV are presented. In the future, this numerical setup will be used to study indirect combustion noise in aircraft engines.

Place, publisher, year, edition, pages
2016. , p. 82
Keywords [en]
Coupled density based solver, High Pressure Turbine Nozzle Guide Vane
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-198926OAI: oai:DiVA.org:kth-198926DiVA, id: diva2:1058992
Educational program
Master of Science - Aerospace Engineering
Supervisors
Examiners
Available from: 2016-12-22 Created: 2016-12-22 Last updated: 2016-12-22Bibliographically approved

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