Fig. 8.79.
Streamlines when perforated plate is added on return air grille (1/10 model) (height of return air grille = b/10)
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.