Potential propulsors for current applications may vary in complexity from traditional open propellers to podded propulsors, multiple blade-row ducted units, and waterjets. In the past, the lifting-line theory has been an effective tool in establishing the principal characteristics of an optimum propeller design. Similarly, turbomachinery through-flow theory has been effective in preliminary estimates for internal flow devices such as waterjets. What is currently lacking is a single, unified approach that can be used for a wide range of propulsor types. This paper presents a possible solution to this problem, based on recent experience in detailed design methods based on coupling lifting surface theory with axisymmetric RANS/Euler solvers. In the present method, lifting-line representations of the blade rows are coupled with an axisymmetric Euler/Boundary Layer solver to provide preliminary estimates of propulsor performance.
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The Preliminary Design of Advanced Propulsors
Paper presented at the SNAME 10th Propeller and Shafting Symposium, Virginia Beach, Virginia, USA, September 2003.
Paper Number: SNAME-PSS-2003-02
Published: September 17 2003
Kerwin, J. E. "The Preliminary Design of Advanced Propulsors." Paper presented at the SNAME 10th Propeller and Shafting Symposium, Virginia Beach, Virginia, USA, September 2003. doi: https://doi.org/10.5957/PSS-2003-02
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