In earlier days, for laying out hot piping in rack, while planning for expansion loops, we were taking help of charts provided in "Piping Design & Engineering" by ITT Grinnell or similar books to find out expansion stresses & thermal expansion forces in the piping & accordingly calculate line spacing at corners.

When every young engineer is having a Caesar-II license, is it done through any similar closed-form solution technique even today or every piping is modeled separately and analysed in Caesar -II?

Young people should understand that 'low cost' does not necessarily mean 'low value'. With superior tools like Caesar-II available along with helpful mentors in the discussion forums like this, they should not look confused & cynical!

regards,

sam