  A new module, Pancake3D, of the open-source Finite Element Quench Simulator
(FiQuS) has been developed in order to perform transient simulations of
no-insulation (NI) high-temperature superconducting (HTS) pancake coils in
3-dimensions. FiQuS/Pancake3D can perform magnetodynamic or coupled
magneto-thermal simulations. Thanks to the use of thin shell approximations, an
$\vec{H}-\phi$ formulation, and anisotropic homogenization techniques, each
turn can be resolved on the mesh level in an efficient and robust manner.
FiQuS/Pancake3D relies on pre-formulated finite-element (FE) formulations and
numerical approaches that are programmatically adjusted based on a text input
file. In this paper, the functionalities and capabilities of FiQuS/Pancake3D
are presented. The challenges of FE simulation of NI coils and how
FiQuS/Pancake3D addresses them are explained. To highlight the functionalities,
the results of a magneto-thermal analysis of a double pancake coil with 40
turns per pancake with local degradation of the critical current density are
conducted and discussed. Furthermore, a parameter sweep of the size of this
local degradation is presented. All the FiQuS input files for reproducing the
simulations are provided.
