SelectionMode geometric requires cellZone name in DarcyForchheimer fvOptions

As described by @Prashant in EP2090 the selectionMode namely geometric can be used within the DarcyForchheimer model but we need also to specify the keyword "cellZone" while specifying a cellZone in addition. This does not make sense and is inconsistent as the cellZone is comming from the geometric selection mode.

Summary

Steps to reproduce

Add an fvOption in such a way:

porousity                                                                       
{                                                                               
    type        explicitPorositySource;                                         
    active      true;                                                           
                                                                                
    explicitPorositySourceCoeffs                                                
    {                                                                           
        type        DarcyForchheimer;                                           
        d           d [0 -2 0 0 0 0 0] (1e12 1e12 1e12);                        
        f           f [0 -1 0 0 0 0 0] (0 0 0);                                 
                                                                                
        coordinateSystem                                                        
        {                                                                       
            origin  (0 0 0);                                                    
            e1      (1 0 0);                                                    
            e2      (0 1 0);                                                    
        }                                                                       
                                                                                
        selectionMode   geometric;                                              
        selection                                                               
        {                                                                       
            box                                                                 
            {                                                                   
                action      use;                                                
                source      box;                                                
                min         (0 -1 -1);                                          
                max         (1 0 1);                                            
            }                                                                   
        }                                                                       
    }                                                                           
}

Example case

Any tutorial case

What is the current bug behaviour?

Selection mode "geometric" requires a cellZone in addition.

What is the expected correct behavior?

Selection mode "geometric" should be usable without specification of a cellZone

Relevant logs and/or images

Environment information

• OpenFOAM version : v2212
• Operating system :
• Hardware info :
• Compiler :

changed title from SelectionMode geometric not possible in DarcyForchheimer fvOptions to SelectionMode geometric requires cellZone name in DarcyForchheimer fvOptions

changed the description

assigned to @mark

@THO The issue is line For historical reasons, till now porous zone was static part (of static mesh) and typically zone was default mode of usage. To extract information like bound etc, the zone was used.

If you comment the lines 105, 108-149 then we no longer need 'cellZone' specification and case should run.

Perhaps we need to discuss if this open ended specification would have any implications (like protection for cases when we have no cells in geometric part etc...)

mentioned in issue #3161 (closed)