ENH: SpalartAllmaras: add estimation functions for k, epsilon and omega

Summary

• Adds estimation functions for k, epsilon, omega fields into the SpalartAllmaras turbulence closure model, so that various utilities can be enabled with this model if necessary, e.g. turbulenceFields function object.
• Reduces peak-memory usage in the SpalartAllmaras model.

Resolved bugs

N/A

Details of new models

• The first test case was based on a direct-numerical simulation by (Moser et al., 1999). The test case is a smooth-wall turbulent plane channel flow wherein an internal flow statistically develops downstream (until is fully developed) through parallel smooth walls that are two characteristic-length apart. The friction Reynolds number of the flow is
  $\mathrm{Re}_\tau = 180$
  .

Turbulent kinetic energy

Turbulent kinetic energy dissipation rate

Turbulent kinetic energy production rate

Streamwise flow speed

Reynolds stress tensor components

Risks

No known risks or user-input changes.

PS: Hi @vaggelisp, might affect or be relevant? just for your info in any case.

added enhancement models labels

added 1 commit

• b296bb85 - ENH: SpalartAllmaras: add estimation functions for k, epsilon and omega

Compare with previous version

Hi @kuti

The k, epsilon and omega approximations could be quite useful if we have an objective function based on these fields but we only have available the adjoint to Spalart-Allmaras.

I will have a look on how the definition of various fields only in the internal of the domain could affect the adjoint to the SA model and let you know within the next few days.

added 1 commit

• 8cd612f2 - TUT: SpalartAllmaras: add showcase for k/epsilon/omega estimation funcs

Compare with previous version

Found another useful, and arguably more competent, expressions:

Eq. 4.50

added 2 commits

• a508bb92 - ENH: SpalartAllmaras: add estimation functions for k, epsilon and omega
• e7af459d - TUT: SpalartAllmaras: add showcase for k/epsilon/omega estimation funcs

Compare with previous version

changed the description

changed the description

added 43 commits

• e7af459d...bfea2326 - 41 commits from branch develop
• 19e29584 - ENH: SpalartAllmaras: add estimation functions for k, epsilon and omega
• 47a4dca5 - TUT: SpalartAllmaras: add showcase for k/epsilon/omega estimation funcs

Compare with previous version

resolved all threads

Clean compilations:

log.linux64ClangDPInt32Opt.gz

log.linux64GccDPInt32Opt.gz

log.linux64ClangSPInt32Opt.gz

log.linux64GccSPInt32Opt.gz

log.tails.gz

Alltest:

logs.gz

testLoopReport.gz

marked this merge request as ready

added Ready label

removed Ready label

added 52 commits

• 47a4dca5...3273e6c2 - 50 commits from branch develop
• c7357bd1 - ENH: SpalartAllmaras: add estimation functions for k, epsilon and omega
• 42bbd059 - TUT: SpalartAllmaras: add showcase for k/epsilon/omega estimation funcs

Compare with previous version

resolved all threads

changed milestone to %v2106

added tutorial label

added Ready label