Aerodynamic Characteristics of Perforated Plates : 1st Report, Resistance Coefficient
نویسندگان
چکیده
منابع مشابه
Acoustic Transmission Loss of Perforated Plates
A study has been conducted on the acoustic response of perforated plates at normal incidence. The investigation includes a theoretical analysis of the problem, with validation through experimentation. The acoustic response was quantified through the transmission loss and absorption coefficient of the perforate. The theoretical analysis is based on planar wave propagation through a single contra...
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We report extraordinary effects in the transmission of sound through periodically perforated plates, supported by both measurements and theory. In agreement with recent observations in slit arrays, M. H. Lu et al. [Phys. Rev. Lett. 99, 174301 (2007)10.1103/PhysRevLett.99.174301], nearly full transmission is observed at certain resonant frequencies, pointing out similarities of the acoustic phen...
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The aim of this paper was to study the relationship between pressure drop and superficial velocity for fabrics used in Through Air Drying and also for perforated plates. Experiments were performed to measure this relationship and the experimental data was then compared to different theoretical models. It was hard to get good agreement between the models and the experimental data for the perfora...
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Micro-perforated absorber is a newly developed sound absorber, and it has a number of attractive features: • Unlike conventional perforated absorbers, micro-perforated absorber can be made from transparent materials like plastic glass. • Unlike commonly used fibrous absorptive materials, micro-perforated absorber is fibrous-free and thus, there is no health concern. • Micro-perforated membranes...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
سال: 1984
ISSN: 0387-5016,1884-8346
DOI: 10.1299/kikaib.50.1808