entropy_viscosity.f90 File Reference

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Data Types
type	entropy_viscosity::entropy_viscosity_t
	Entropy-based artificial viscosity model for compressible flow. More...

Modules
module	entropy_viscosity
	Implements the entropy-based artificial viscosity model.

Functions/Subroutines
subroutine	entropy_viscosity::entropy_viscosity_init (this, case, json)
	Initialize the entropy viscosity model from a case and JSON parameters.
subroutine	entropy_viscosity::entropy_viscosity_free (this)
	Free the entropy viscosity model.
subroutine	entropy_viscosity::entropy_viscosity_preprocess (this, time)
	Compute the artificial viscosity before a time step.
subroutine	entropy_viscosity::entropy_viscosity_compute_residual (this, tstep, dt, dt_lag)
	Compute the BDF entropy residual.
subroutine	entropy_viscosity::entropy_viscosity_compute_viscosity (this, tstep)
	Compute and limit the entropy viscosity coefficient.
subroutine	entropy_viscosity::entropy_viscosity_smooth_viscosity (this)
	Cross-element smoothing via gather-scatter averaging. Averages viscosity values at shared nodes between elements.
subroutine	entropy_viscosity::entropy_viscosity_apply_element_max (this)
	Replace nodal viscosity values by the maximum in each element.
subroutine	entropy_viscosity::entropy_viscosity_set_fields (this, p, rho, u, v, w, max_wave_speed, msh, xh, gs, gamma)
	Associate the fields and discretization used by the model.
subroutine	entropy_viscosity::entropy_viscosity_compute_entropy (this)
	Compute entropy from the current pressure and density.
subroutine	entropy_viscosity::entropy_viscosity_restart (this, time)
	Reinitialize entropy history from a restarted flow state.
subroutine	entropy_viscosity::entropy_viscosity_update_lag (this, time)
	Shift the entropy history and compute the new entropy.
subroutine	entropy_viscosity::entropy_viscosity_col3_vector_cpu (us, vs, ws, u, v, w, s, n)
	Multiply each velocity component by entropy on the CPU.
subroutine	entropy_viscosity::entropy_viscosity_abs_add_cpu (entropy_residual, div_field, n)
	Add the flux divergence to the residual and take its absolute value.
pure real(kind=rp) function	entropy_viscosity::entropy_viscosity_low_order (this, i)
	Compute low-order viscosity at one point.
subroutine	entropy_viscosity::entropy_viscosity_compute_h (this)
	Compute the characteristic mesh size. Adapted from les_model_compute_delta in les_model.f90.