🍪 Gingerbread Mould: Squeeze Flow, Pressure and How Deep Dough Fills the Carving (2D)

Cross-section of a carved wooden mould pressed onto a disc of gingerbread dough on a table. The dough thins as it is squeezed outward, the pressure under the mould is highest in the centre, and dough is pushed into the carved cut against its own yield stress. Set the force, the mould size, the starting thickness, the dough consistency, flow index and yield stress, and the cavity depth, width and position, and see the thickness, the pressure, how deep the cut fills and how fast. The Stefan law, the power-law squeeze solution, the pressure integral and the fill time are checked numerically, with four in-page numerical checks.