Two new VPD Products:OpenRoad and EHP

Tom MarinaccioSVP Worldwide Engineering Services

GUIGUI

Run: Mesh/Solve/Post Output:Input: Run: Mesh/Solve/Post

“VPD Tool”“VPD Tool”

Virtual Product Development (VPD)

Key Advantages

Productivity - go faster

Uniformity – common process for everyone

Error trapping – less mistakes

Repeatability – quality control

Usability– product and process focused, not CFD focused

Optimization – automation leading to optimization

Virtual Product Development (VPD)

OpenRoad

Enable easy to use Virtual Product Development of Ground Vehicle Aerodynamics and Thermal Underhood Simulations

Possible to run both in batch and interactively

Full workflow automation from CAD -> PPT

Save and load configurations for repeatability and case studies

OpenRoad Objectives

Name-based PartGroup Filtering (and Exceptions)

Automatic application of all meshing settings to PartGroup Filters

Automatic Wind Tunnel creation based on vehicle extents, or import your own exact tunnel geometry for detailed validation

Automatic application of volume source boxes based on PartGroup Filter extents

Automatic application of Contact Prevention based on PartGroup Filter results

Save ALL settings in OpenRoad to an .openroad “meta-template” to save your best practices

Repeat the same analysis and post processing result on different geometries with a single batch command.

OpenRoad Features

OpenRoad Demonstration (video)

Report and Monitor Values:– Aerodynamic Force Coefficients, Frontal Area, Accumulated Drag Plots, Monitored

Values defined by the user (temperatures, pressures, etc.) Field Average Values, Residual Plots, CPU and Wall Time

Automatic creation of Section Slices, ISO-Surfaces, Oil Streaks (Constrained Streamlines) and Tracers (3D Streamlines) based on PartGroup Filters

– ISO Surfaces can be used to show: Vortex Cores, Cp, Cptot, Static Pressure, Skin Friction, Wake profiles, Yplus Values and more.

– Section Slices can be used to show: Velocity Mag, V/Vx, Cp, Cptot, Temperature, Turbulent Energy, Turbulent Viscocity, and more.

– Oil Streaks can be applied to any PartGroup Filter and provide near surface velocity field visualization.

– Tracers can be introduces to show the “smoke flow” over the vehicle, and also to show the wake disturbance area behind the vehicle.

STAR-View+ Files can be generated from any Post Processing Image for 3D interactive viewing using STAR-CCM+

OpenRoad Output Data

EHP (Estimating Hull Performance)

Provide the Naval Architect with a streamlined GUI-driven process to simulate hull performance in calm water

Input and Output in familiar terms (not CFD terms)

Full workflow automation from CAD -> PPT

Retains full power of STAR-CCM+ for follow-on analyses

EHP Objectives

Guided Import and Positioning on the hull geometry from all widely used hull design software, such as Rhino, Hull Form, Free!Ship, Autoship, etc.

– IGES, Parasolid, STEP, STL, DBS, NASTRAN

Half or full hull import. Model Scale or Full Scale.

Calculate all standard variables such as COB, COG, ly, cB, cM, cP, LOA, LWL, etc.

Automatic application of water properties for Fresh or Sea Water from 1C to 30C with ability to customize/override these values.

Ability to restrict trim or sinkage calculation or to leave all motions free to calculate based on the solution.

Run a series of speeds specified in Froude # or Absolute Values

Create a PPT of all the velocity results

EHP Features

EHP Demonstration (video)

Multiple Views of the Input Hull

Estimated Horsepower/Drag Values in a clear table format.

Comparison with ITTC 1957 and ATTC 1947 correlations included.

Trim and Sinkage vs. Velocity and Trim and Sinkage vs. Time Plots.

Resistance vs. Velocity and Resistance vs. Time Plots.

Transverse Wave Cuts, Longitudinal Wave Cuts for each velocity.

Steamlines along the hull for each velocity.

Free Surface visualization for each velocity.

Water Level Profile along the hull for each velocity.

Wave Heights at Hull for each velocity.

Line Integral Convolution Plots to visualize water motion currents around the hull

EHP Output Data

Contact your Account Manager for more information on buying OpenRoad and EHP

Thank you!