Publication:
Design, build and test of an axial flow hydrokinetic turbine with fatigue analysis

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Authors
Ketcham, Jerod W.
Subjects
Advisors
Date of Issue
2010-06
Date
Publisher
Monterey California. Naval Postgraduate School
Language
en_US
Abstract
OpenProp is an open source propeller and turbine design and analysis code that has been in development since 2007 by MIT graduate students under the supervision of Professor Richard Kimball. In order to test the performance predictions of OpenProp for axial flow hydrokinetic turbines, a test fixture was designed and constructed, and a model scale turbine was tested. Tests were conducted in the MIT water tunnel for tip speed ratios ranging from 1.55 to 7.73. Additional code was also written and added to OpenProp in order to implement ABS steel vessels rules for propellers and calculate blade stress. The blade stress code was used to conduct a fatigue analysis for a model scale propeller using a quasi-steady approach. Turbine test results showed that OpenProp provides good performance predictions for the ondesign operational condition but that further work is needed to improve performance predictions for the off-design operational condition. Fatigue analysis results show that reasonable estimates of propeller blade fatigue life can be obtained using a relatively simple method.
Type
Thesis
Description
CIVINS (Civilian Institutions) Thesis document
Department
Identifiers
NPS Report Number
Sponsors
Funder
Contract number: N62271-97-G-0026.
CIVINS
Format
94 p. : ill. (some col.)
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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