Wind Common file ZHOLE meaning?

Dianhong

Hi all,

In a WIND code common file format (*.cgd), (see the following link)

http://www.grc.nasa.gov/WWW/winddocs...s.html#cfddefs:figures

any one knows what is the meaning of ZHOLE variable under FRNG BND node? How is this variable defined?

I can not find it in the spec document.

Thanks!