19   params.
addParam<MaterialPropertyName>(
    20       "flux", 
"flux", 
"Name of the flux vector material property");
 const ADTemplateVariableTestGradient< T > & _grad_test
gradient of the test function 
registerMooseObject("MooseApp", ADFluxDivergence)
ADFluxDivergence(const InputParameters ¶meters)
DualNumber< Real, DNDerivativeType, true > ADReal
Kernel computing the weak divergence of a flux vector supplied by a material. 
unsigned int _i
current index for the test function 
static InputParameters validParams()
const ADMaterialProperty< RealVectorValue > & _flux
Flux vector material property. 
static InputParameters validParams()
unsigned int _qp
The current quadrature point index. 
ADReal computeQpResidual() override
Compute this Kernel's contribution to the residual at the current quadrature point.