- Tytuł:
- Instability of the non-isothermal flow between a rotating and a stationary disks
- Autorzy:
-
Tuliszka-Sznitko, E.
Soong, C. Y.
Serre, E.
Bontoux, P. - Powiązania:
- https://bibliotekanauki.pl/articles/1967641.pdf
- Data publikacji:
- 2001
- Wydawca:
- Politechnika Gdańska
- Tematy:
-
rotational flow
stationary disks
flow instability
transition flow
convective/absolute transition - Opis:
- Both theoretical linear stability analysis and direct numerical simulation are performed to study the transition flow between rotating discs. The paper reports three-dimensional spiral and annular patterns computed with a high-order (spectral) numerical method in the Bodewadt layer of a cylindrical rotor/stator cavity. The characteristic parameters of these boundary layer instabilities are compared with the theoretical results and interpreted in terms of type I and type II generic instabilities. The absolute instability regions are theoretically identified and critical Reynolds numbers of the convective/absolute transition in both layers are given. The absolute or convective nature of the flows is determined by examining the branch-point singularities of the dispersion relation.
- Źródło:
-
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2001, 5, 4; 557-566
1428-6394 - Pojawia się w:
- TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
- Dostawca treści:
- Biblioteka Nauki
Artykuł