Parallel FlowVision-HPC (High Perfomance Computing) is being developed since 2003. The motivation for its keel-laying was appearance of powerful clusters, which essentially extended possibilities to solve complex aero-hydrodynamic problems.

FlowVision-HPC successfully operates on parallel computers with shared, distributed, and combined memory as well as on sequential computers. Running it on multi-processor machines allows
- increasing the overall accessible physical memory via summation of the physical memories of all the individual nodes,
- essential speeding-up calculations.

Particular attention is paid to the structure of the code with the goal to enable fast implementation of new simulation capabilities.

Simulation capabilities

All Mach numbers Navier-Stokes solver:

• Simultaneous presence of regions with M<<1 (incompressible flow) and M>>1 (supersonic or hypersonic flow) in the computation domain
• Single numerical algorithm for the entire computation domain

Stationary and non-stationary flows:

• Single time marching procedure for obtaining unsteady and steady solutions

Free surface tracking:

• High-accuracy version of the VOF method
• Accurate reconstruction of free surfaces: SGGR method
• Two-phase flows of immiscible fluids with account of surface tension and solid surface wetting

Moving bodies:

• Easy import of additional geometries into the computation domain and definition of 'Moving bodies'
• Each 'Moving body' has 6 degrees of freedom
• 'Moving body' motion relative to the computation domain is computed by accurate and fast Euler method
• 'Moving body' kinematics: user-defined motion laws
• 'Moving body' dynamics: gravity, buoyancy, hydrodynamic, or user-defined forces
• Coupled calculations of the motion of 'Moving bodies' and free surfaces

Fluid-structure interaction (FSI):

• Two-way coupling with FEA system Abaqus
• Fast explicit coupling procedure
• Automatic exchange by computed data

Heat transfer:

• Molecular thermal conductivity
• Turbulent thermal conductivity
• Free and forced convection
• Conjugate heat transfer

Turbulence models:

• k-Epsilon "standard"
• k-Epsilon low-Reynolds AKN
• k-Epsilon quadratic
• Shear Stress Transport (SST) k-Omega
• Spalart-Allmares

Substance database:

• Standard and user Substance databases
• Pure substances and mixtures
• Properties of a substance are grouped in different phases (aggregative or special states)

Customized templates (plugins):

• Enable effortless definition of simulation parameters for typical projects
• Prevent input errors
• Provide required graphical interface

Computational mesh

• Direct import of CAD/FEM geometry: VRML, STL, INP-Abaqus
• Indirect import of CAD/FEM geometry (via 3DTransVidia): DEFORM, Abaqus, ANSYS and NASTRAN, IGES, VDAFS and PARASOLID, CATIA V4/V5, Pro/E, UGS
• Easy grid definition followed by fast automatic grid generation
• Sub-Grid Geometry Resolution (SGGR) method: resolution of curve-linear surfaces of arbitrary complexity achieved by natural truncation of hexahedral cells by triangulated surfaces
• Refinement of grid within a volumetric object and near a geometry surface
• Automated dynamic grid adaptation to solution (splitting and merging cells according to pre-defined adaptation criteria)
• Automated dynamic grid adaptation around a moving body (splitting and merging cells)

Pre-processor

• Definition of substances, phases, and phase interactions
• Selecting physical processes and models
• Definition of initial and boundary conditions, Interactive assignment of boundary conditions to geometry surfaces
• Definition of initial mesh and adaptation criteria

Post-processor

• Vectors on a plane or surface
• Isolines on a plane or surface
• Color contours on a plane or surface
• Plots
• Isosurfaces
• Integral volumetric or surface characteristics
• Integral cross-section characteristics
• On-line visualization of results in the course of calculations
• Semi-transparency
• Saving history of simulation
• Possibility to create movies

Supported platforms

• PC: Windows Me, Windows 2000/XP/2003/ Vista/Compute Cluster Server
• Unix and Linux clusters: SUSE, RedHat and others
• Windows, Linux: 32- and 64-bit versions

System requirements

CPU:

• Intel Pentium 4 - 2000 MHz or higher performance processor of x86 architecture

RAM:

• 500 MB or higher

Display adapter

• Any display adapter on chipsets GeForce (256 MB or higher)

Video adapter:

• Resolution: 800õ600 or higher
• Hardware support: OpenGL
• Memory: 32 MB or higher

Network adapter:

• any with tcp/ip v.4 support

Operating system:

• Linux (Red Hat EL 4 and later versions, SUSE 10 and later versions)*, **
• Windows 2000 Service Pack 3;
• Windows Server 2003;
• Windows XP Service Pack 2;
• Windows HPC Server 2008;
• Windows Server 2008;
• Windows Vista;

* Excluding Pre-Postpocessor.
**Full-range stable operation with other Linux distributions is possible, but not guaranteed.

Computer software:

• Windows Installer 3.0 (Windows Installer 3.1 or later version is recommended)
• MPICH 1, MPICH 2 or MSMPI

How to start using FlowVision-HPC?

1. Consulting project
2. Training
3. Evaluation running (few-month license)
4. Full commercial license

Academic license is offered to universities for research and education purposes only.