Newsroom
Flow Science Announces Release of FLOW-3D
Version 9.0
SANTA FE, NEW MEXICO, February 2, 2005. Flow Science, Inc. announces the availability of a major new release of its FLOW-3D computational fluid dynamics software. Version 9.0 of FLOW-3D offers users the ability to model rigid body dynamics with full six-degrees-of-freedom fully-coupled with fluid flows. In addition, several other new and useful physical models have been added and the graphical user interface has been completely overhauled and updated.
What follows is a very brief summary of the key new features in Version 9.0:
New Models
General Moving Objects. A new General Moving Object model
allows users to model rigid body dynamics with six-degrees-of-freedom fully
coupled with fluid flow. In the new model, an object (or multiple objects) can
be allowed to move freely, or the user can prescribe the motion.
Thermal Stress Modeling. A thermal stress model, together
with an implicit treatment of the stresses and an extension to two fluids, has
been added. The model describes elastic stresses and deformations induced by
cooling and solidification of metal parts.
Implicit GMRES Solver for pressure
and velocity. A new pressure-velocity solver, generalized minimum residual
method,
has been added. In addition to the GMRES pressure solver, a new algorithm—the
generalized conjugate gradient algorithm—has also been implemented for
solving viscous terms implicitly, when used with the GMRES solver.
Electro-thermal (Joule heating) and Electro-mechanical
effects.
The ability to model these effects has been added to the electric field model.
Implicit Surface Tension. Users can now model surface tension
effects implicitly.
Air Entrainment. Designed to model the entrainment of air
into fluid due to turbulent mixing at the free surface, the new model takes into
account turbulence in the fluid, gravity and surface tension.
Micro-porosity model. A new model for predicting micro-porosity
in solidifying metal.
Drift-flux model additions. A non-linear
(Reynolds number dependent) model has been developed for the calculation of the drift
velocity, together with Richardson-Zaki correlation for closely packed dispersed
material, and an inversion point (when continuous and dispersed phases change
into the reverse configuration).
Major Improvements
Multi-Block Model. Improved mass conservation and diagnostics
in the multi-block model. The coupling of pressures and velocities at inter-block
boundaries has been significantly enhanced.
Advection. Numerous important improvements to FLOW-3D’s VOF advection schema have been implemented. Molecular diffusion between two fluids has been added.
Thermal die cycling. Convergence control
of the implicit heat transfer solver has been optimized for faster performance.
This includes setting the maximum allowed time step, based on the cycling segment
durations, and relaxing convergence for the thermal cycles before the last
one. This will make such calculations run at least two times faster or more depending
on the number of cycles.
Graphical User Interface. The FLOW-3D graphical
user interface has been re-written from scratch using a cross-platform toolkit
known as Qt®. This new GUI is a major improvement over prior incarnations
in that it has built-in intelligence, more capabilities and is fully-integrated.
Importantly, great effort was expended to ensure that the new GUI is backward
compatible, so that users would not be required to make changes to input files
in order to run them in the new GUI.
Flow Science has commenced shipment of the new release to customers under maintenance contracts.
Flow Science, Inc. is a privately held software company specializing in high fidelity fluid dynamics modeling software for industrial and scientific applications worldwide. Flow Science has Associates for FLOW-3D sales and support in Japan, Germany, Korea, Finland, Norway, Russia, Hong Kong, Taiwan, Spain, Italy, Canada, India and China.
For information, contact Flow Science, Inc. at:
Flow Science
683 Harkle Road, Suite A
Santa Fe, New Mexico, USA
Telephone: (505) 982-0088
Fax: (505) 982-5551
E-mail: info@flow3d.com
Website: www.flow3d.com
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