Detail Propeller Design and Analysis for Naval Architects

HydroComp, Inc. of Durham, NH USA has implemented significant new features to HydroComp PropElements 2017 – the propeller “design for performance” code. While built upon the same analytical code-base as an earlier version of PropElements, it really is a novel program that tackles the component-level hydrodynamic needs of naval architects. The latest update offers a predictive tool that can handle custom and semi-custom propeller analysis, and allow naval architects (and propeller specialists) to investigate propeller iterations at later design stages. Now, HydroComp PropElements can evaluate a propeller or walk a design much closer to 3D CFD in a shorter time frame and at reduced cost.

Key upgrades include:

• New interface using the HydroComp common GUI (as found in PropCad and NavCad).
• Deployed with equivalent “Premium Edition” features, such as scripting, batch processing, and floating network licensing.
• New high blade-loading curvature correction for low J accuracy. (This is huge!)
• Interactive smoothing of pitch and/or camber during the optimum design process.
• Ability to define a nozzle or tip-gap “effectiveness”.
• Added section cavitation criteria for chord and nose radius.
• Calculation of body forces for CFD and FEA. (Now a vital companion for higher-order analyses!)
• Prediction of induced volumetric flow rate (for “pump action” applications).
• Additional data exchange with NavCad (for initial design) and PropCad (for manufacture).

Also new to PropElements 2017 are internal analytical prediction improvements for:

• Performance properties for Generic foil option.
• Nozzle induction.
• Foil-specific CF friction line.
• Analysis at tip sections.

» New features added to PropElements 2017