Download HyperWorks 12.0 Release Notes

Introduction of Ffowcs-Williams-Hawkings Acoustic Solver
A new acoustic post-processing program, AcuFwh is included in the V12.0 distribution. AcuFwh is
used as a post processor for AcuSolve data to propagate the acoustic sources to far field microphone
locations that are located outside of the simulation domain. This technology enables users to evaluate
the far field acoustic signature of designs using AcuSolve and AcuFwh. At the current time, acuFwh
operates as a post processor to AcuSolve and relies on data written to disk using the FWH_SURFACE
and FWH_OUTPUT input file commands. AcuFwh is fully parallelized and can be run in shared and
distributed memory computing environments. Note that this marks the initial release of AcuFwh, and
there is currently no graphical user interface support through AcuConsole. Users should refer to the
AcuSolve Command Reference Manual and AcuSolve Programs Reference Manual for guidance on using
the new capability.
Schematic representation of acoustic source propagation using AcuFwh and
AcuSolve.
Bi-directional Coupling Support Between AcuSolve and AcuTrace
AcuTrace and AcuSolve can now be run in a bi-directionally coupled fashion to provide more
efficient particle tracing simulations as well as enhanced capabilities. When exercising the bidirectional coupling between AcuSolve and AcuTrace, the two codes exchange information via socket
communication. This avoids the need to write nodal output data to disk at high frequencies for later
use with AcuTrace. Additionally, this allows AcuTrace and AcuSolve to exchange information regarding
the particle properties such as temperature. This enables the simulation of hot/cold particles entering
a fluid region and exchanging energy with the surrounding fluid. Additionally, the particles can be
used to measure a concentration, which can be used by AcuSolve to determine aggregate material
properties for a given element to simulate immiscible fluids.
Schematic representation of AcuTrace/AcuSolve coupling scheme