Modifying relaxation factors for the angledDuct for rhoPimpleFoam

Henry Weller authored May 17, 2017 and Andrew Heather committed May 17, 2017

79ff91350 - rhoPimpleFoam: Improved support for compressible liquids
(2017-05-17 17:05:43 +0100) <Henry Weller>

Both stardard SIMPLE and the SIMPLEC (using the 'consistent' option in
fvSolution) are now supported for both subsonic and transonic flow of all
fluid types.

rhoPimpleFoam now instantiates the lower-level fluidThermo which instantiates
either a psiThermo or rhoThermo according to the 'type' specification in
thermophysicalProperties, see also commit a1c8cde3

values; formatted Switch entries consistently across all cases

tutorials/compressible/rhoPimpleFoam/ras/angledDuct: Updated for change in U boundary condition update order

    Select LTS via the ddtScheme:

        ddtSchemes
        {
            default         localEuler rDeltaT;
        }

Better for most but not all cases.

Relaxation and solution parameters for the final iteration in PIMPLE loops are
now selected according to the value of the "finalIteration" entry in the
mesh::data dictionary.

rhoPimpleFoam significantly updates and now replaces rhoPisoFoam.

Tried to sort out the scripts in the tutorials but found it is messed up.  Will start again from a new version from Mattijs