1 / 3

3-D Nozzle project Project supervisor T.H. Fransson Students O. Bron, A. Kessar

Background: Large influence of unsteady flow effects in turbomachinery flow Strong interactions between Steady and Unsteady Flows influence on shock motion influence separation influence on far acoustic field. 3-D Nozzle project Project supervisor T.H. Fransson Students O. Bron, A. Kessar.

bruis
Download Presentation

3-D Nozzle project Project supervisor T.H. Fransson Students O. Bron, A. Kessar

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Background: Large influence of unsteady flow effects in turbomachinery flow Strong interactions between Steady and Unsteady Flows influence on shock motion influence separation influence on far acoustic field 3-D Nozzle projectProject supervisorT.H. FranssonStudentsO. Bron, A. Kessar Engine Compressor Stage • Objectives: Establish a better understanding of fundamental steady/unsteady flow interactions by analysing: • Unsteady shock motion • Separated zone motion • Importance of the “acoustic blockage” in 2D transonic flow • Non-linear shock/boundary layer interaction in unsteady flows at different operating conditions Interblade Passage 1\3

  2. e 3-D Nozzle project: Experimental part • Facility: • Test objects (2-D\3-D bumps), simulating interblade passage. • Unsteadiness introduced by back pressure fluctuations generator. Picture of the Test section • Measurement Techniques: • Oil & conventional Schlieren visualisations, Hotfilm/Hotwire measurements, surfacepressure maping (both steady-state and high frequency), LDA & 3D-L2F velocity measurements, PIV... Schlieren visualisation 2\3

  3. 3-D Nozzle project: Numerical part • Simulations: • 2D/3D steady/unsteady RANS • with k- turbulent model • Simulations of both 2-D/3-D test objects • Interaction phenomena modelisation • Exp-Num Comparison: • Qualitative & quantitative comparison • Validation of physical/numerical models • Database elaboration 50% channel 3\3

More Related