Porous "Solid" Zone Interfacing with a Solid Zone - Boundary Condition - LTNE
I am wondering about how to setup or create the proper boundary conditions for a conjugate heat transfer simulation that features steel rods embedded in a porous medium with air flowing through the porous medium. The simulation considers the LTNE porous media model.
The porous medium (essentially sand) is at a high temperature, and the air influx through the sand is meant to convectively cool the sand. Steel rods have been added to the model in such a way as to possibly influence faster sand cooling times, and the overall purpose of this simulation is to gauge the effectiveness of this approach.
While I can establish thermal interaction (i.e. heat transfer) between the fluid (air) and steel rod zones (through either interface or coupled wall boundary condition), when the LTNE model is active (creating the "sand" zone) I have not been able to find a way to couple the "sand" zone to the steel rod zone.
I would expect that contact between the high temperature sand zone and the steel rods would have a considerable thermal impact on the steel rods in terms of heat transfer. As such, having these two zones coupled is imperative to my model.
Any suggestions on how to couple the fluid (air) & steel rod (solid) zones as well as the sand ("porous medium") & steel rod (solid) zones would be appreciated.