Simulation of heat transfer and natural ventilation driven by thermal buoyancy under solar radiation

Hello everyone!
we are currently researching how heat transfer occurs from a wall’s surface to the internal ventilation ducts after solar radiation, accelerating the airflow within the ducts through the thermal buoyancy generated by the transferred heat. At this stage, we have achieved natural ventilation using Butterfly, but we are unsure how to simulate solar radiation and heat transfer and integrate them with Butterfly. The image shows the initial shape of our wall and the mesh we created using Butterfly. We look forward to your feedback. Thank you!