Natural Convection from Two Hot Semi-Circular Cylinder Confined in Cold Circular Cylinder

Natural Convection from Two Hot Semi-Circular Cylinder Confined in Cold Circular Cylinder

Numerical simulations were performed to study the pertinent parameters of natural convection in annular space. The studied geometry consists of two semi-circular cylinders of hot walls confined in cold cavity of circular cross-sectional form. The simulations were done by solving numerically the gove...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum Defect and diffusion forum, 2021-05, Vol.409, p.58-66
Hauptverfasser: Helmaoui, Mustapha, Ghenaim, Abedallah, Laidoudi, Houssem
Format: Artikel
Sprache:eng
Schlagworte:
Circular cylinders
Free convection
Insulation
Parameters
Prandtl number
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Numerical simulations were performed to study the pertinent parameters of natural convection in annular space. The studied geometry consists of two semi-circular cylinders of hot walls confined in cold cavity of circular cross-sectional form. The simulations were done by solving numerically the governing equations via the commercial software ANSYS-CFX. The results showed that this new form of inner cylinders is suitable for insulating applications. The pertinent parameters were selected for this work were: Prandtl number (Pr = 0.71 to 1000) and Rayleigh number (Ra = 103, 104 and 105).
ISSN:1012-0386
1662-9507
1662-9507
DOI:10.4028/www.scientific.net/DDF.409.58