5. Velocity Performance Prediction


   The Integrated Power Technology Corporation™ proposes deploying a fleet of Turbofoil® equipped vessels configured with a parasail. Here we evaluate candidate Velocity Performance Prediction development options which ultimately determine the path cost or yield to inform the navigation and mission decisions of operators of mobile unmanned energy recovery systems.

Velocity Performance Prediction


   Integrated Power Technology Corporation™ recognizes the value and leadership the following companies offer towards developing a Velocity Performance Prediction Program for integration into the SCADA system proposed by Integrated Power Technology Corporation™.

Company Name

Technology Specifications

Hydrocomp, Inc. Hydrocomp, Inc. has gained renown for its Nav CAD VPP package.
MaxSea MaxSea has developed an advanced Electronic Charting System (ECS) for private small operators, especially sailboats, and is particularaly looking at incorporating VPP into their MaxSea TimeZero ECS, a product designed for professional mariners (Super Yachts, Workboats, Racing boats), and comes with a standard connection to Furuno 2xx7 and NavNet 3D radars and FLIR M-Series thermal cameras.

Integrated Power Technology Corporation™ assesses MaxSea has the most advanced combination of GIS and rudimentary VPP on the market today, and a partnership with MaxSea would bring Integrated Power Technology Corporation™'s GIS/VPP efforts to a TRL 7.

Hanley Innovations Hanley Innovations specializes in aerodynamic and hydrodynamic VPP expertise as in their MultiSurface Aerodynamics
SourceForge gvpp SourceForge gvpp , Gnu VPP, open source VPP
NSWC Carderock NSWC Carderock , Naval Surface Warfare Center, Carderock Division, performs a wide range of shipbuilding disciplines including Design and Integration Technology and Hull Forms and Propulsors where NSWC Carderock performs VPP analysis and other cost and logistical planning.

Integrated Power Technology Corporation™, in submitting a Response to DoD NSWC Carderock BAA (N00167-11-BAA-01), a Broad Agency Announcement for energy related topics in naval systems, has already established a relationship with NSWC Carderock. Should research grant funding not become available through this relationship, one other means of access to the resources of NSWC Carderock would be through their Work for Private Parties or one of the other Vehicles for Partnering business opportunities, should Integrated Power Technology Corporation™ acquire adequate funding.

Aerohydro, Inc. Aerohydro, Inc., MultiSurf and Relational Geometry RGKernal

Integrated Power Technology Corporation™ has worked with Aerohydro, Inc. in preparing an SBIR Phase 1 Grant Proposal in 2006, and will likely continue collaborating with Aerohydro, Inc. in vessel Velocity Performance Prediction (VPP) for a reasonable fee.

ANSYS ANSYS' Industry Leading Mechanical CAD software, especially Fluid Dynamics de facto leader in CFD, having the Emirates Team New Zealand winner of the Louis Vuitton Cup using the ANSYS CFD and integrating their ANSYS design simulations into a winning VPP.

CD-Adapco CD-Adapco developed STAR-CCM+, having an established reputation for producing high-quality results in a single code with minimum user effort. Besides a CFD solver, STAR-CCM+ supports an entire engineering process for solving problems involving flow (of fluids or solids), heat transfer and stress.
CEI Software CEI Software developed CONVERGE™, a Computational Fluid Dynamics (CFD) code that completely eliminates the user time to generate grids through an innovative runtime grid generation technique. Learn more about how CONVERGE™ is revolutionizing the CFD industry.
BMT Group BMT Group, a leading international design, engineering, science and risk management consultancy, formed in 1985 from the merger of the UK's British Ship Research Association and National Maritime Institute, has core strength in Specialist Vessel Design, Offshore Renewable Energy Vessels and especially Offshore Renewable Energy Projects including MetOcean and Navigation and managing a European Research UMV project.

Integrated Power Technology Corporation™ has discussed with BMT the application of BMT Smart Services in the demonstration of Turbofoil® operation.

Aimdyn, Inc. Aimdyn, Inc. was established in 2003 to enable development of powerful forecasting technologies for broad use in industry. Aimdyn has developed a suite of software tools that enable the user to forecast and propose best remedial or control action for engineered or natural systems. Aimdyn has a depth of expertise in flow mechanics, mechanical engineering, automatic control, vehicle terrain or ocean coverage and cleanup strategies and has developed proprietary software in each of these fields. Their expertise in shipping logistics as an optimization problem could apply to Integrated Power Technology Corporation™'s path cost and yeild algoritm develpoment

   Therefore, while a least cost approach to VPP would entail open source development, for quickest most accurate results in Velocity Performance Prediction development, Integrated Power Technology Corporation™ proposes to utilize NSWC Carderock's or Aerohydro, Inc.’s expertise in developing combined aerodynamic/hydrodynamic performance simulation software, to support quantitative evaluation of the technical and economic feasibility of the proposed vehicle and support system. The following development plan was contributed by Aerohydro, Inc. to an SBIR Phase I Grant Proposal submitted by Integrated Power Technology Corporation™.


Velocity Performance Prediction Software Development

   This software will be similar in concept and level of modeling detail to the VPP's that are widely used for performance prediction, optimization and handicapping of sailing yachts. A VPP takes as inputs:

and solves for equilibrium of the forces and moments, simultaneously optimizing multiple control settings, including sail trim, reefing (sail span) and heading angle with respect to the wind direction. This numerical solution furnishes a prediction of the optimal performance of the vessel as a function of wind speed and heading.

   The primary differences in this project from a conventional sailboat VPP are:

  1. Because of the foil support, the vertical force equilibrium is significant, requiring an additional force equilibrium equation.
  2. The turbine power generation will have associated drag components that enter the horizontal force equilibrium equations. These drag components will be estimated by energy and momentum conservation principles.
  3. Effective functioning of the hydrofoils requires a nearly upright attitude, so heel angle is effectively removed as a degree of freedom.
  4. The primary objective to be maximized is power generated, rather than boat speed.

   Integrated Power Technology Corporation™ anticipates the program input will be a file of input dimensions and coefficients, and its output will be a file tabulating generated power versus wind speed, along with the accompanying sailing angles, velocities and control settings.

    Note, the contemplated simulation program does NOT address the larger questions of optimal routing through weather systems, or optimization of configuration choices to maximize system performance, but it does provide an essential foundation for those types of analysis.

   The simulation program will be built on the foundation of Aerohydro, Inc.'s proprietary RGKernel library. Relevant software components already available in RGKernel include dynamic arrays, vector analysis, solution of simultaneous nonlinear equations, and optimization procedures.


Proposed CAD Modeling Component

    It is desirable for various purposes to visualize candidate configurations. This need ranges from detection of interferences between components, to preparation of marketing presentations for attracting investment capital.

   Integrated Power Technology Corporation™ proposes to develop a kit of relational components that will allow rapid assembly of configuration models in the environment of Aerohydro, Inc.'s MultiSurf (Compatible with Solidworks) for visualization purposes:

Each of these components would be located in relationship to a point, and sized according to its parameters. Thus with a very short sequence of modeling operations and component loads, a visual model can be assembled with varying numbers and positions of hulls, foils, and sails.


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