I am using ANSYS 5.3. I am looking for examples of thermal problems. I have explored the example problem in the Help file, but the type of boundary conditions I wish to set do not appear in this example. Also, I am looking for descriptions of some of the fine points involved in the thermal modeling, such as: -- what equations are used in the thermal model? -- how are boundary conditions set in the thermal model? -- must the enthalpy for each material be defined, or is it sufficient to define just the specific heat, and thermal conductivity? (Alternatively: where does the enthalpy appear in the equations?) Thanks, Al Henning -- Albert K. Henning, Ph.D. Director of Technology 650-617-0854 Redwood Microsystems, Inc. 650-326-1899 (FAX) 959 Hamilton Avenue henning@redwoodmicro.com Menlo Park, CA 94025 http://www.redwoodmicro.com