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- Title
Reaktivni propulzori - osnovni pojmovi i spoznaje.
- Authors
Sambolek, Miroslav
- Abstract
The most general theory of reactive propulsors--RP, their characteristics, various types, their principal parts and quantities on which their efficiency depends are reviewed. Starting from elementary physical laws, a simple and transparent mathematical model of RP, indispensable in ship's and airplane's propulsion, is constructed. The specific features of RPs compared to other types of propulsors, which are for the sake of unambiguousness called active, are pointed out. Some analogy of RP's way of action with the process of transformation of heat energy to mechanical work, as described by the second law of thermodynamics, is accentuated too. For the sake of simplicity of the derivation and clearer insight, an isolated RP is considered. Different sources of energy losses are judged, nondimensional parameters of RP loading are reviewed and efficiencies are defined. An original table containing a full set of formulas which are necessary to describe the functioning of RP is presented.
- Subjects
SHIP propulsion; MARINE machinery; MATHEMATICAL models; THERMODYNAMICS; AIRPLANES
- Publication
Brodogradnja, 2006, Vol 57, Issue 4, p332
- ISSN
0007-215X
- Publication type
Article