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Design of a Propeller Fan using 3D Inverse Design Method and CFD for High Efficiency and Low Aerodynamic Noise

Posted By: ADT
Date:Tue, 2 May 2017, 9:46 p.m.

Three-dimensional inverse design method, where the 3D blade profile is designed for a specified blade loading distribution, has been applied for designing a propeller fan rotor with high efficiency and low noise.

A variety of the blade loading distributions (pressure jump across the blade), vortex pattern (forced vortex, free vortex, and compound vortex) and the stacking conditions (sweep angles) were specified and the corresponding 3D blade configurations were obtained. Among the 22 different designs, 14 propeller fan rotors including the reproduced baseline fan were manufactured by a rapid prototyping based on a selective laser sintering system (SLS) and tested.

It was confirmed experimentally that the best design achieved about 5.7 points improvement in the peak total to static efficiency and the 2.6dB(A) reduction in aerodynamic noise. The flow mechanisms leading to the higher efficiency and lower aerodynamic noise were discussed based on experiments and the RANS steady flow simulations. Based on these investigations, design guidelines for the inverse design of propeller fan rotors with higher efficiency and lower aerodynamic noise were proposed. Read the publication in full Want to learn more and see a demonstration?

Join us for our webinar on Thursday 11th May, we will show you how a centrifugal fan / blower stage consisting of impeller and volute can be optimized for improved stage performance using the TURBOdesign Suite.

The following high-level steps will be shown:

- Performance simulation and review of a complete (i.e. impeller + volute) stage. - Key choice of design parameters for the impeller and volute design. - Control and manipulation parameters such as blade loading for the impeller and specified inlet velocity distribution for the volute. - Performance simulation and review of the optimized design

The presentation will also consider the impact of different manufacturing methods on the final design. This will be followed by a live Q&A with the presenter. All attendees of the live session will receive an exclusive piece of content.

This webinar is offered several times. Select the time that works best for you.

Thursday 11th May at 9am BST - UK/Europe time zone: Thursday 11th May at 10am CDT - USA time zone:

- Learn how the different modules in TURBOdesign Suite ease & streamline the design process for centrifugal fans of all specific speeds. - Discover how the direct control of performance-related loading parameters allows fan manufacturers to rapidly improve & optimize their designs, and remain viable in a challenging regulated market. - See how TURBOdesign Suite is seamlessly integrated with world class simulation systems to provide a comprehensive product development solution for the design of high performance fans.

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