- TransAT is a finite-volume solver weak-compressible and
incompressible solver that can deal with a wide range of
applications, featuring laminar and turbulent single and multiphase
flow & heat transfer, evoliving from micro- to city scale.
- Advantages of ASCOMP’s CFD software TransAT over available
softwares include the focus on complex multi-fluid and heat
transfer capabilities, in particular at the microscale level
(two-phase flows in 0.0001 mm pipes).
- TransAT is based on precise simulation of the dynamics of the
fluid interface and heat and mass transfer, particles, including
phase change, marangoni effects, contact angle and capillary driven
flows, ultra-thin films.
- TransAT uses the Immersed Boundary Technology (IST), where CAD
files representing the objects are immersed with a simple Cartesian
grid. Grid generation is thus made very easy, fast (10 to 20
minutes for a 3D setup), simple, and user friendly. Advantages
inlcude dispensing with skewed grids, reducing thus grid-related
- TransAT uses automatic Block based Mesh Refinement (BMR), where
additional blocks of refined grids are added to critical flow
zones, e.g. near walls for boundary layers. Similarly, blocks can
be removed automatically from non-critical flow regions.
- TransAT is based on distinct modules; each one deals with
specific flow features: implict for RANS simulations, explicit for
LES and V-LES and multiphase flows.
- Thanks to IST, TransAT solves conjugate heat transfer problems
without coupling with external codes.
- TransAT copes with moving boundaries automatically, implemented