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)
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
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
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
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
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