  Harnessing modern parallel computing resources to achieve complex
multi-physics simulations is a daunting task. The Multiphysics Object Oriented
Simulation Environment (MOOSE) aims to enable such development by providing
simplified interfaces for specification of partial differential equations,
boundary conditions, material properties, and all aspects of a simulation
without the need to consider the parallel, adaptive, nonlinear, finite-element
solve that is handled internally. Through the use of interfaces and
inheritance, each portion of a simulation becomes reusable and composable in a
manner that allows disparate research groups to share code and create an
ecosystem of growing capability that lowers the barrier for the creation of
multiphysics simulation codes. Included within the framework is a unique
capability for building multiscale, multiphysics simulations through
simultaneous execution of multiple sub-applications with data transfers between
the scales. Other capabilities include automatic differentiation, scaling to a
large number of processors, hybrid parallelism, and mesh adaptivity. To date,
MOOSE-based applications have been created in areas of science and engineering
such as nuclear physics, geothermal science, magneto-hydrodynamics, seismic
events, compressible and incompressible fluid flow, microstructure evolution,
and advanced manufacturing processes.

Mathematical Software;Computational Physics