Hull and propeller as a system

[selsan]

Do you know any study that examines the certain properties of the system or any design that is achieved considering this approach?

[Leo Lazauskas]

Originally Posted by selsan

Do you know any study that examines the certain properties of the system or any design that is achieved considering this approach?

Here's the biblio and synopsis from a paper distributed by the Italian Embassy in Australia. There are a couple of papers in the biblio that are available online.

All the best,
Leo.

"New perspectives in experimentally predicting ships power performance"
Luigi Iannone
Bollettino della Comunità Scientifica in Australasia
Dicembre 2006

Synopsis

Depending on several typologies of ships and their propulsion systems, different experimental methods are
ordinarily applied for predicting ships power performance from model tests results. But, in the present
author’s opinion, only innovative approaches giving up with resistance model tests can be expected to be the
most promising in reliability terms: more specifically, model tests really appropriate to that purpose are
British self-propulsion tests.
As a last but not least significant aspect of such an innovative previsional approach, the present author has
devised – in order to more rationally determine model and full scale advance speed of every kind propulsors
- original and unified ways which, taking advantage of propulsion performance assessment and analysis made
in the light of naval propulsors hydrodynamic theory, overcomes constraints and limitations involved in
traditional procedures.
In the present work, firstly background philosophy of the proposed previsional approach is illustrated, by
duly remitting readers to pertaining references for related details; then, a review of possible perspectives in
the ship power performance prediction research field is developed.

References

[1] ‘Proceedings from the ITTC Full Conferences’ from website http://ittc.sname.org/proceedings.htm, update 2006.
[2]HOLTROP, J., ‘Are Resistance Tests Indispensable?’, Proceedings 20th ITTC, Madrid, Vol. 2, pp. 454-459, 1990.
[3]SCHMIECHEN, M.: 2nd International Workshop on the Rational Theory of Ship Hull-Propeller Interaction and its
Applications. Proceedings. Berlin: Eigenverlag der VWS, 1991. Mitteilungen der VWS, Heft 56, 1991.
[4]IANNONE, L., ‘An Alternative Procedure for Evaluation and Analysis of Flush-Inlet Waterjet Crafts Performance’,
ICHD'94 – International Conference on Hydrodynamics, Wuxi (Jiangsu), China, 1994.
[5]IANNONE, L., ‘Model Performance Evaluation of Open Water Screw-Propellers as Pumps’, HSMV’95 – 3rd
Symposium on High Speed Marine Vehicles, Naples, Italy, April 6÷7, 1995.
[6]IANNONE, L., ‘Power Performance Analysis and Full-Scale Predictions without Towing Tests’, NAV'97 Conference,
Sorrento (Naples, Italy), 1997.
[7]IANNONE, L., ‘Self-Propulsion Flow Components Analysis for Power Performance Predictions’, IMAM'97 - 8th
International Congress of the International Maritime Association of the Mediterranean, Istanbul, Turkey, 1997.
[8]BOSE, N., BILLET, M., ANDERSON, P., ATLAR, M., DUGUÉ, C., FERRANDO, M., QIAN, W., SHEN, Y., Report of the
Specialist Committee on Unconventional Propulsors, Proceedings of the 22nd ITTC, Seoul, Korea, 1999.
[9]HOLTROP, J., ‘Exttapolation of propulsion tests for ships with appendages and complex propulçors’, presented at
SNAME Canadian Atlmric Section meeting, Memorial University of New Foundland, Canada, October 2000.
[10]IANNONE, L., ‘Form Factor and Thrust Deduction at Service Conditions from Self-Propulsion Flow Analysis’,
IMAM 2000 – 9th Int.l Congress of the International Maritime Association of the Mediterranean, Ischia (Gulf of
Naples), Italy, 2000.
[11]IANNONE, L., ‘Waterjets Propulsion Analysis in the Light of Basic Principles for Evaluating Propulsors
Hydrodynamical Performance’, HIPER’01 Conference, Hamburg, Germany, 2001.
[12]MOLLOY, S., ‘Ship Powering Prediction Using Load Varying Self-Propulsion Tests’, masters degree thesis, Faculty
of Engineering and Applied Science, Memorial University of New Foundland, Canada, May 2001.
[13]MOLLOY, S., BOSE, N., ‘Ship Powering Prediction from Self-Propulsion Load Varying Tests’, SP 2001: Lavrentiev
Lectures, paper 15, 2001.
[14]HOLTROP, J., ‘Extrapolation of Propulsion Tests for Ships with Appendages and Complex Propulsors’, Marine
Technology, Vol. 38, No. 3, July, 2001.
[15]IANNONE, L., ‘Only Self-Propulsion Model Tests for Waterjets Performance Analysis’, IMAM’02 – 10th
International Congress of the International Maritime Association of the Mediterranean, Crete, Hellas, 2002.
[16]IANNONE, L., ‘A Simplified Procedure for Assessing Power Performance of Water-jet Ships’, ICHD 2002 – 5th
International Conference on Hydrodynamics, Tainan, Taiwan, October 31÷November 2, 2002.
[17]SCHMIECHEN, M. ‘Simple Wake Axioms – Plausibility considerations’, What's new on the evaluation of ship powering
performance ? section from website http://www.m-schmiechen.homepage.t-online.de, update 2002.
[18]IANNONE, L., ‘Guidelines for Assessing Ships Power Performance’, presented at the third meeting of XXIV ITTC
Waterjet Committee, Ischia (Naples, Italy), October 2003.
[19]IANNONE, L., ‘A Critical Survey on Performance Assessment for Classical and Advanced Ships’, FAST 2003 – 7th
International Conference on Fast Sea Transportation, Ischia (Naples, Italy), October 7÷10, 2003.
[20]IANNONE, L., ‘Waterjets Advance Speed At Full Scale’, ICRMT’ 05, International Conference on Marine Research
and Transportation, Ischia (Gulf of Naples), Italy, September 19÷21, 2005.
[21]SCHMIECHEN, M. ‘Axiomatic system of wake and thrust deduction’, What's new on the evaluation of ship powering
performance ? section from website http://www.m-schmiechen.homepage.t-online.de, update 2005.
[22]SCHMIECHEN, M. ‘Propulsor Hydrodynamics’, MAHY 2006, Naval Science and Technological Laboratory at
Visakhapatnam, India, January 2006.
[23]IANNONE, L., ‘Unified Approach To Full Scale Advance Speed For All Kinds Of Propulsors’, Pacific IMC 2006,
Sydney, Australia, January 30 ÷ February 2, 2006.

[selsan]

Thanks for you answer.

[selsan]

Do you know CFD studies on this topic?

[Leo Lazauskas]

Originally Posted by selsan

Do you know CFD studies on this topic?

Thanks a big task for CFD which (correct me if I'm wrong) can't accurately predict the drag coefficient of a flat plate at ship-scale.

Seriously though, I have seen a few papers. Google up Fred Stern and his colleagues at IIT. I have some papers in a box somewhere I'll dig out when I get some time.

Leo.

[selsan]

I will work on it using Fluent. The information i have found is related with fluent and cfx advertisements or announcements. If i can find some published papers it will be good as a starting point.

[Leo Lazauskas]

Originally Posted by selsan

I will work on it using Fluent. The information i have found is related with fluent and cfx advertisements or announcements. If i can find some published papers it will be good as a starting point.

Neither cfx nor Fluent did particularly well on the test cases at a couple of CFD workshops. See, for example, the proceedings of
"Gothenburg 2000 A Workshop on Numerical Ship Hydrodynamics", editors Lars Larsson, Frederick Stern and Volker Bertram.

There was also a CFD workshop in Tokyo? in 2005 as well.

Good luck,
Leo.