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- Title
Brodski vijak -- gubitci i stupanj djelovanja.
- Authors
SAMBOLEK, Miroslav
- Abstract
The article initially discusses generally the efficiency of technical structures, especially of ships. Then it considers the power losses occurring during the work of propellers. Special attention is devoted to the interpretation of physical causes of loss and to the explanation of the reasons why the change in load and geometrical shapes of propellers shows certain behaviour. It was shown that the best level of usefulness could be achieved at a big diameters D, very high pitch ratio P/D and at low RPM. However, such propellers are for practical reasons unimplementable. The amount of decrease in propeller efficiency, when the optimal diameter and the optimal RPM are not fulfilled, is shown in the diagram.
- Subjects
PROPELLERS; NAVAL architecture; GEOMETRY; SHIP propulsion; SHIPBUILDING
- Publication
Brodogradnja, 2010, Vol 61, Issue 3, p255
- ISSN
0007-215X
- Publication type
Article