Thank you for the fast answer. nBy activating the option plain strain under Geometry tree i get another error:The addin does not support transfer of data for 2D models. Please delete the load before you proceed. and so i cannot transfer the information from Fluent to Transient Structural. The imported body temperature is not loaded on Transient structural module and in this way i can't go on with the structural simulation. How can i solve this?Thank in advance!