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EnglishA finite-volume two-dimensional plane/axisymmetric heat-conduction solver for solid materials has been developed and coupled with a hypersonic flow solver to the aim of evaluating the thermal load on a body that is immersed in a high-speed flow. Different coupling strategies that can be enforced between the two solvers were considered and are discussed here. A tight coupling technique is particularly suitable for unsteady time-accurate calculations, but due to the large difference between fluid dynamics and heat conduction time scales, this may lead to unacceptable computational times. A valid alternative approach is to proceed with a series of "quasi-stationary" states, allowing the heat-conduction solver to evolve in a loosely coupled fashion using time steps which are large with respect to the flow time scale. The obtained results are compared with available numerical and experimental data, showing a fairy good agreement. Copyright © 2008 by Pietro Ferrero and Domenic D.
A numerical method for conjugate heat transfer problems in hypersonic flows / Ferrero, P.; D'Ambrosio, D.. - ELETTRONICO. - (2008). ((Intervento presentato al convegno 40th AIAA Thermophysics Conference tenutosi a Seattle, WA, usa nel 2008.
| Titolo: | A numerical method for conjugate heat transfer problems in hypersonic flows |
| Autori: | |
| Data di pubblicazione: | 2008 |
| Abstract: | A finite-volume two-dimensional plane/axisymmetric heat-conduction solver for solid materials has... been developed and coupled with a hypersonic flow solver to the aim of evaluating the thermal load on a body that is immersed in a high-speed flow. Different coupling strategies that can be enforced between the two solvers were considered and are discussed here. A tight coupling technique is particularly suitable for unsteady time-accurate calculations, but due to the large difference between fluid dynamics and heat conduction time scales, this may lead to unacceptable computational times. A valid alternative approach is to proceed with a series of "quasi-stationary" states, allowing the heat-conduction solver to evolve in a loosely coupled fashion using time steps which are large with respect to the flow time scale. The obtained results are compared with available numerical and experimental data, showing a fairy good agreement. Copyright © 2008 by Pietro Ferrero and Domenic D. |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| AIAA-2008-4247-642.pdf | Articolo principale | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2842918
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