The hydraulic solver Flower and its validation against the QUELL experiment in SULTAN

Knowledge of the hydraulic boundary conditions is a prerequisite for accura te estimates of the quench characteristics of superconducting magnets. A se t of routines (Flower) has been designed and interfaced to the code Gandalf to provide a simplified model of the hydraulic connections to a cryogenic plant of a coil using cable-in-conduit conductors with central cooling chan nel. The validation against experimental data provided by the Quench Experi ment on Long Length (QUELL) in the CRPP facility SULTAN have shown that Flo wer is able to simulate the hydraulic boundary conditions within engineerin g limits of accuracy.