Open Access

Table 2

Boundary conditions available on all variables of x ∈ {Σ, e, ur, uϕ}.

Condition Formula
Zero-gradient xa,b = xa
Disk model xg,b = xdm(rg,b)
Reference xg,b = xref(rg,b)

Notes. The superscript g, b indicates that the same formula is used for variables in the center of the ghost cell and on the interfaces. The radii are understood to be at the respective locations.

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