Penetrative convection in an anisotropic porous medium is simulated via internal heating. We consider both internal heat sources and sinks, where the porous medium has constant anisotropic thermal diffusivity and non-homogeneous permeability. Both linear instability and global nonlinear energy stabilty analyses are performed. By adopting a differential constraint approach, the nonlinear stability boundaries are shown to be sharp when compared with the linear instability thresholds. In contrast, it is shown that adopting a standard energy analysis does not yield sharp results.

Penetrative convection via internal heating in anisotropic porous media / Capone, Florinda; Gentile, Maurizio; A. A., Hill. - In: MECHANICS RESEARCH COMMUNICATIONS. - ISSN 0093-6413. - STAMPA. - 37:5(2010), pp. 441-444. [10.1016/j.mechrescom.2010.06.005]

Penetrative convection via internal heating in anisotropic porous media

CAPONE, FLORINDA;GENTILE, MAURIZIO;
2010

Abstract

Penetrative convection in an anisotropic porous medium is simulated via internal heating. We consider both internal heat sources and sinks, where the porous medium has constant anisotropic thermal diffusivity and non-homogeneous permeability. Both linear instability and global nonlinear energy stabilty analyses are performed. By adopting a differential constraint approach, the nonlinear stability boundaries are shown to be sharp when compared with the linear instability thresholds. In contrast, it is shown that adopting a standard energy analysis does not yield sharp results.
2010
Penetrative convection via internal heating in anisotropic porous media / Capone, Florinda; Gentile, Maurizio; A. A., Hill. - In: MECHANICS RESEARCH COMMUNICATIONS. - ISSN 0093-6413. - STAMPA. - 37:5(2010), pp. 441-444. [10.1016/j.mechrescom.2010.06.005]
File in questo prodotto:
File Dimensione Formato  
MRC10.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Accesso privato/ristretto
Dimensione 196.34 kB
Formato Adobe PDF
196.34 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/367398
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 48
  • ???jsp.display-item.citation.isi??? 40
social impact