174 research outputs found
Performance of a Family of Surface Piercing Propellers
No full textExperimental tests have been performed on a systematic series of surface piercing propellers with varied number of blades (4 and 5) and pitch ratio (from 0.8 to 1.4). Some aspects of scaling the performance of this kind of propulsor have been investigated.
Influence of depth of immersion and shaft inclination is discussed and results for variations in these parameters are presented.
Regression equations are given describing the relationship of the thrust and torque coefficients for advance coefficients above the critical values.
This work is the result of a research on the performances of surface piercing propellers undertaken by the University of Genoa and was partly developed as a doctoral thesis on surface piaercing propellers
Performance of a Family of Surface Piercing Propellers
No full textExperimental tests have been performed on a systematic series of surface piercing propellers with varied number of blades (4 and 5) and pitch ratio (from 0.8 to 1.4). Influence of depth of immersion and shaft inclination is discussed and results for variations in these parameters are presented. Regression equations are given describing the relationship of the thrust and torque coefficients for advance coefficients above the critical values. Influence on Weber number is briefly considered, confirming results of previous works. This work is the result of a research on the performances of surface piercing propellers undertaken by the University of Genoa and was partly developed as a doctoral thesis
Mounier educatore: quel mistero chiamato persona
No full textThis article focuses on the philosophy of personalism and its educational applications, especially the author develops a pedagogical analysis on the Mounier’s personalist idea. According to Mounier, we must respect “the inviolable mystery of the person” because the person is the highest value
Mounier educatore: quel "mistero" chiamato persona
No full textThis article focuses on the philosophy of personalism and its educational applications, especially the author develops a pedagogical analysis on the Mounier’s personalist idea. According to Mounier, we must respect “the inviolable mystery of the person” because the person is the highest value
Emissioni elettromagnetiche di impianti di trasmissione terrestri in alta tensione continua
No full text- …
