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Basic principles and theorems of dimensional analysis and the theory of model similarity of physical phenomena

100%

Flaga A.

The paper concerns dimensional analysis and the theory of model similarity of physical phenomena. At the beginning of the considerations, basic notions, definitions, relationships and fundamental principles of the issues to be analysed has been presented. Next, Buckingham’s Π-theorem of dimensional analysis and theory of similarity as well as authorial generalized theorems Π of this field of interest have been derived. A separate chapter has been devoted to the problem of the nature of physical phenomena occurring in the mechanics of continuous or discrete material mediums. At the end of the paper, an example of the determination of similarity numbers in the case of a system with one degree of freedom at mechanical and kinematic excitation have been given.

An acoustic study of the auditorium hall to be located in the proposed building of the Applied Acoustics Laboratory of Cracow University of Technology

63%

Szeląg A. , Flaga A.

This paper presents an acoustic study of the auditorium hall located in the proposed building of the Applied Acoustics Laboratory of Cracow University of Technology. The study shows a comparative analysis of two solutions to the acoustic adaptation of this room. The aim of this study was to demonstrate that with a given room shape and finishing materials, it is possible to optimize the sound quality of the interior through changes to some architectural details, for example, by the adequate formation and arrangement of finishing elements.

Wind tunnel tests of wind action on an aquaporine model exhibit

63%

Flaga A. , Flaga Ł.

In the paper, wind tunnel tests of wind action on an aquaporine model exhibit performed in a boundary layer wind tunnel of the Wind Engineery Laboratury at the Cracow University of Technology have been presented. In the experiments, most of the similarity criteria elaborated specially for this purpose have been fulfilled. Moreover, safety assessments of the exhibit with respect to a strong wind action have been done.

Wind tunnel tests of acoustic panels

51%

Flaga A. , Bosak G. , Kłaput R.

The paper summarizes the wind tunnel tests of original acoustic panels located on the block buildings roofs near edge of building roof and walls. Performed investigations had two main goals: 1. Verification of resistance of the panels at their connecting members at high air flow velocities; 2. Determination the set of aerodynamic force coefficients, obtained from measured wind pressure distribution on the façade panel surfaces in two opposite wind directions, was the main aim of the work.