ord_convection

define approximation order of the transport operators

define the approximation order in order to model the local transport operator \begin{align} \mathbf{v}^T_{EULER} \nabla\end{align} where \( \mathbf{v}^T_{EULER}\) is the transport velocity, to be found in %ind_v_Euler(1)% etc.
ord_convection = 2 # use only up to linear ansatz functions for the EULER-transport operator
default: ord_convection = 3 -> use up to quadratic ansatz functions for modelling the local transport . For the transport operators, see also current settings by the
DEBUG_GeneralParameter(60) = 30 # version 2 of d/dm DEBUG_GeneralParameter(59) = -0.1 # usage of delta function and minimum shift distance DEBUG_GeneralParameter(52) = 10 # refine transport at slip walls for the velocity boundary conditions # HINT: ord_convection = 4 # would invoke order 3. In addition to the quadratic ansatz functions, also some exponential ansatz functions in the sense exp( 2*(x-x_0) ) .
or
DEBUG_GeneralParameter(60) = 0 # version 1 of d/dm DEBUG_GeneralParameter(59) = -0.1 # usage of delta function and minimum shift distance
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ord_convection define approximation order of the transport operators
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