Skip to Main content Skip to Navigation
Journal articles

Methodology of numerical coupling for transient conjugate heat transfer

Abstract : This paper deals with the construction of a conservative method for coupling a fluid mechanics solver and a heat diffusion code. This method has been designed for unsteady applications. Fluid and solid computational domains are simultaneously integrated by dedicated solvers. A coupling procedure is periodically called to compute and update the boundary conditions at the solid/fluid inter- face. First, the issue of general constraints for coupling methods is addressed. The concept of interpolation scheme is introduced to define the way to compute the interface conditions. Then, the case of the Finite Volume Method is thoroughly studied. The properties of stability and accuracy have been optimized to define the best coupling boundary conditions: the most robust method consists in assigning a Dirichlet condition on the fluid side of the interface and a Robin condition on the solid side. The accuracy is very dependent on the interpolation scheme. Moreover, conservativity has been specifically addressed in our methodology. This numerical property is made possible by the use of both the Finite Volume Method and the corrective method proposed in the current paper. The corrective method allows the cancellation of the possible difference between heat fluxes on the two sides of the interface. This method significantly improves accuracy in transient phases. The corrective process has also been designed to be as robust as possible. The verification of our coupling method is extensively discussed in this article: the numerical results are compared with the analytical solution of an infinite thick plate in a suddenly accelerated flow (and with the results of other coupling approaches).
Complete list of metadata

Cited literature [24 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01002811
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Friday, June 6, 2014 - 5:09:35 PM
Last modification on : Tuesday, March 16, 2021 - 3:44:16 PM
Long-term archiving on: : Tuesday, April 11, 2017 - 4:02:21 AM

File

Gressier_11744.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Emmanuel Radenac, Jérémie Gressier, Pierre Millan. Methodology of numerical coupling for transient conjugate heat transfer. Computers and Fluids, Elsevier, 2014, vol. 100, pp. 95-107. ⟨10.1016/j.compfluid.2014.05.006⟩. ⟨hal-01002811⟩

Share

Metrics

Record views

304

Files downloads

1630