Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 114-124 |
| Number of pages | 11 |
| Journal | Journal of Marine Science and Technology |
| Volume | 22 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Mar 2017 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Added mass
- Cycloidal propellers
- Flapping foil
- Foil wheel
- Optimization
- Oscillating foil
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On the optimum performance of oscillating foil propulsors. / Sánchez-Caja, Antonio (Corresponding Author); Martio, Jussi.
In: Journal of Marine Science and Technology, Vol. 22, No. 1, 01.03.2017, p. 114-124.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - On the optimum performance of oscillating foil propulsors
AU - Sánchez-Caja, Antonio
AU - Martio, Jussi
N1 - ISI: ENGINEERING, MARINE
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The design of oscillating foil propulsors is considerably more complex than that of conventional propellers due to the large amount of geometric and kinematic parameters involved in the problem. No general use of such promising propulsion concept is made routinely yet since many open questions remain to be solved. One of such questions is the sensitivity of the propulsor efficiency to foil chord length that is much larger than for conventional propellers. Our focus is on this particular problem. A potential flow theory that estimates the main force components affecting the global performance of such devices is presented. The theory is applied to oscillating foils with heaving and pitching motions and to wheel propellers with foils describing trochoidal paths. Added mass terms that usually are neglected in efficiency analyses and that play an important role in determining the global performance are included. A parameter optimization procedure is introduced in this context. Comparison to experimental data and RANS computations is made.
AB - The design of oscillating foil propulsors is considerably more complex than that of conventional propellers due to the large amount of geometric and kinematic parameters involved in the problem. No general use of such promising propulsion concept is made routinely yet since many open questions remain to be solved. One of such questions is the sensitivity of the propulsor efficiency to foil chord length that is much larger than for conventional propellers. Our focus is on this particular problem. A potential flow theory that estimates the main force components affecting the global performance of such devices is presented. The theory is applied to oscillating foils with heaving and pitching motions and to wheel propellers with foils describing trochoidal paths. Added mass terms that usually are neglected in efficiency analyses and that play an important role in determining the global performance are included. A parameter optimization procedure is introduced in this context. Comparison to experimental data and RANS computations is made.
KW - Added mass
KW - Cycloidal propellers
KW - Flapping foil
KW - Foil wheel
KW - Optimization
KW - Oscillating foil
UR - http://www.scopus.com/inward/record.url?scp=84975126946&partnerID=8YFLogxK
U2 - 10.1007/s00773-016-0397-7
DO - 10.1007/s00773-016-0397-7
M3 - Article
VL - 22
SP - 114
EP - 124
JO - Journal of Marine Science and Technology
JF - Journal of Marine Science and Technology
SN - 0948-4280
IS - 1
ER -