Update zero eq

[ktangsali]

PhysicsNeMo Pull Request

Description

The present PDE included turbulent dynamic viscosity. However, since the PDE describes the overall kinematic viscosity, the rho term needs to be dropped. After that is completed, the units match.

Other examples in PhysicsNeMo are unaffected as all of them set rho to 1, so no changes are required there.

Closes: #118

Math

$$ \mu_t = \rho l^2_m \sqrt{G} $$ $$ \rho = kg / m^3, l_m = m, G = 1/s^2 $$ $$ RHS = \rho l^2_m \sqrt{G} = \frac{kg}{m s} $$ $$ LHS = \mu_t = \frac{kg}{m s} $$

Ref

Hence,

$$ \nu_t = m^2 / s $$

Ref

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.
• The CHANGELOG.md is up to date with these changes.
• An issue is linked to this pull request.

Dependencies

[ktangsali]

/blossom-ci

[ktangsali]

/blossom-ci