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Master thesis and internship[BR]- Master's thesis : Investigation of the transition to turbulence on a flat-plate boundary layer at supercritical pressure[BR]- Integration Internship : Delft University of Technology
Gaspar, Romain 
Promotor(s) :
Terrapon, Vincent
Date of defense : 26-Jun-2023/27-Jun-2023 • Permalink : http://hdl.handle.net/2268.2/17888
Master_Thesis_Gaspar_Romain.pdfDetails
| Title : | Master thesis and internship[BR]- Master's thesis : Investigation of the transition to turbulence on a flat-plate boundary layer at supercritical pressure[BR]- Integration Internship : Delft University of Technology |
| Translated title : | [fr] Analyse de l'instabilité secondaire des écoulements en couche limite avec des fluides dans leur région thermodynamique supercritique |
| Author : | Gaspar, Romain
|
| Date of defense : | 26-Jun-2023/27-Jun-2023 |
| Advisor(s) : | Terrapon, Vincent
|
| Committee's member(s) : | Pecnik, René
Hillewaert, Koen
|
| Language : | English |
| Number of pages : | 125 |
| Keywords : | [en] boundary layer [en] supercritical [en] instabilities [en] DNS |
| Discipline(s) : | Engineering, computing & technology > Aerospace & aeronautics engineering |
| Research unit : | TU Delft |
| Name of the research project : | Investigation of the transition to turbulence on a flat-plate boundary layer at supercritical pressure |
| Target public : | Researchers Professionals of domain Student |
| Institution(s) : | Université de Liège, Liège, Belgique Université de TU-Delft, Delft, Pays-bas |
| Degree: | Master en ingénieur civil en aérospatiale, à finalité spécialisée en "aerospace engineering" |
| Faculty: | Master thesis of the Faculté des Sciences appliquées |
Abstract
[en] The secondary instability of boundary layer flows with fluids in their thermodynamic supercritical region. Above certain conditions of pressure and temperature, fluids reach a supercritical state where the distinction between liquid and gas phases does not exist any longer. The transition to turbulence of such fluids is a very active topic of research. Yet, the physical mechanism of transition are still largely unexplored.
We recently carried out a linear stability analysis (LSA) of supercritical CO2 developing over a flat plate. A new unstable mode was discovered, different from that of the boundary layer of an ideal fluid.
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