Adjoint Field Functions

The following field functions are made available when computing the adjoint solution and sensitivities.

Adjoint of [cost function] w.r.t.

Indicates the adjoint of the respective cost function.

See $Λ_{Q}$ in Eqn. (5084), whose components are the Adjoint w.r.t. Continuity, Adjoint w.r.t. X-, Y-, Z-momentum, and Adjoint w.r.t. Energy and Adjoint w.r.t Sparlart-Allmaras Turbulence if the model is enabled.

Continuity

The adjoint with respect to continuity. This value tells you the sensitivity of the cost function with respect to local changes in mass within the domain.

X-, Y-, Z-momentum

The adjoint with respect to momentum. This value tells you the sensitivity of the cost function with respect to local changes in X-, Y-, and Z-momentum within the domain.

Energy

The adjoint with regard to energy. This value tells you the sensitivity of the cost function with regard to local changes in energy within the domain.

Position

The adjoint with respect to position. See

\frac{ⅆ L}{ⅆ D}

in Eqn. (5087). This value tells you the sensitivity of the cost function with respect to displacement boundary position.

Sparlart-Allmaras Turbulence

The adjoint with respect to the Sparlart-Allmaras Turbulence equation. The value gives the sensitivity of the objective with respect to changes in the Sparlart-Allmaras equation.

Note	Available only when Adjoint Sparlart-Allmaras Turbulence is enabled.

Sensitivity of [cost function] w.r.t. Position

Sensitivity of the selected cost function with respect to position. See

\frac{ⅆ L}{ⅆ X}

in Eqn. (5083). The position refers to the coordinates of the vertices of the volume mesh. A high value (positive or negative) tells you that the respective cost function is particularly sensitive to that given vertex coordinate position.

Adjoint Error Estimates of [cost function]

Adjoint error estimates of the respective cost function. See

{A E r r}^{L}

in Eqn. (5122).

Surface Sensitivity of [cost function] w.r.t.

Indicates sensitivity of the selected cost function with respect to surface position.

Position: Displays the magnitude of the surface sensitivity or the selected component of the surface sensitivity vector.
Normal Displacement: Displays the dot product of the surface sensitivity vector with the inward surface normal.

Cumulative Morpher Displacement

Records dynamically the total displacement the mesh deformation morphed.