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On the Validation of an Unsteady Lifting Surface Method for Propeller Design Analysis

T Van Beek, Henri van de Vorst

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Abstract

The unsteady lifting surface code PUF3A has been evaluated thoroughly for the prediction of the propeller performance. Some modifications proved to be necessary. A regression formula is derived for the pitch of the trailing wake behind the blades. After these modifications, cavitation performance and pressure pulses have been evaluated for various practical propellers. Finally, the possibility to use PUF3A as a design tool has been investigated.

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What this paper is about

The unsteady lifting surface code PUF3A has been evaluated thoroughly for the prediction of the propeller performance. Some modifications proved to be necessary. A regression formula is derived for the pitch of the trailing wake behind the blades. After these modifications, cavitation performance and pressure pulses have been evaluated for various practical propellers. Finally, the possibility to use PUF3A as a design tool has been investigated.

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Available abstract

The unsteady lifting surface code PUF3A has been evaluated thoroughly for the prediction of the propeller performance. Some modifications proved to be necessary. A regression formula is derived for the pitch of the trailing wake behind the blades. After these modifications, cavitation performance and pressure pulses have been evaluated for various practical propellers. Finally, the possibility to use PUF3A as a design tool has been investigated.

Key concepts: Propeller, Wake, Propulsor, Code (set theory), Marine engineering, Surface (topology), Computer science, Cavitation

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