Reply To: Pressure drop Heat Exchanger Shell and Tube

[NickFL]

Many, many sources of potential error. Here are the simpliest do debug.

1. Is it scaled correctly? Are you sure of your HEx size in the Fluent model? It would not be the first time someone made this mistake.
2. Does it have the correct material properties? Default is air.
3. Double check your mass flux. Does it match what you put in your hand calculation?