what's the meaning
 

> Reading "D:\BUBBLE.GRD"...

Building...

grid, Error: Null Domain Pointer

Error Object: ()

I use the fluent6.2,i cann't go ahead.

Re: what's the meaning
 

it seems to me that the file u r reaidng is old format file and probably needed to be converted to new format of fluent6.

Re: what's the meaning
 

Make sure the solver option is set to fluent 5/6 in gambit.

-H

Re: what's the meaning
 

This is FLUENT 4 Grid file. you must have selected FLUENT 4 while assigning boundary zones to your geometry in GAMBIT.

Are you following Fil-->Read--->Case option? you may get this error in that case.

You should follow the path File-->Import-->Fluent 4

Re: what's the meaning
 

3ks,it's ok following your advice.