A design methodology for contrarotating propellers bas been developed based on rational hydromechanics. Three fundamental principles need to be satisfied: momentum, mass, and circulation conservation. Momentum conservation requires the net force generated by the contrarotating propeller to be balanced by the drag of the bare body and the drag due to hull-propulsor interaction. Mass conservation determines the circulation distribution of the aft propeller once the forward propeller circulation distribution is specified. Circulation conservation determines the magnitude of the circulation distribution of the aft propeller to ensure the proper thrust and torque ratios. The effects of the hub boundaries have been taken into account in the design and analysis methods. A contrarotating propeller set was designed for uniform flow at the operating point of the propeller for a high-speed surface ship. Open water results show that the performance predictions agree well with the measurements.
Skip Nav Destination
SNAME 22nd American Towing Tank Conference
August 8–11, 1989
St. John's, Newfoundland, Canada
A Design Method and an Application for Contrarotating Propellers
Arthur Reed
Arthur Reed
David Taylor Research Center
Search for other works by this author on:
Paper presented at the SNAME 22nd American Towing Tank Conference, St. John's, Newfoundland, Canada, August 1989.
Paper Number:
SNAME-ATTC-1989-042
Published:
August 08 1989
Citation
Chen, Benjamin, and Arthur Reed. "A Design Method and an Application for Contrarotating Propellers" Paper presented at the SNAME 22nd American Towing Tank Conference, St. John's, Newfoundland, Canada, August 1989. doi: https://doi.org/10.5957/ATTC-1989-042
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$35.00
Advertisement
5
Views
Advertisement
Suggested Reading
Advertisement