- Tytuł:
- Transmission loss and pressure drop of selected range of helicoidal resonators
- Autorzy:
- Łapka, W.
- Powiązania:
- https://bibliotekanauki.pl/articles/128014.pdf
- Data publikacji:
- 2014
- Wydawca:
- Politechnika Poznańska. Instytut Mechaniki Stosowanej
- Tematy:
-
helicoidal resonator
transmission loss
pressure drop
numerical analysis
rezonator helikoidalny
straty transmisyjne
spadek ciśnienia
analiza numeryczna - Opis:
- The paper presents the numerical analysis of transmission loss and pressure drop of acoustic helicoidal resonators with constant pitch to cylindrical duct diameter ratio and different number of helicoidal turns n. The ducted system consists of a straight cylindrical duct of constant diameter d=0.125m. The ratio of helicoidal pitch s to cylindrical duct diameter d equals s/d=1,976. Other geometrical relationships of helicoidal resonator, as a mandrel diameter dm to duct diameter ratio dm/d=0.024 and thickness g of helicoidal profile g/d=0.0024, were constant as well. The investigated range of numbers of helicoidal turns n was analyzed in the range from 0 to 2.0 for transmission loss parameter and from 0 to 1.0 for pressure drop. The values of normal inflow velocity v [m/s] equals 1, 5, 10, 15 and 20.
- Źródło:
-
Vibrations in Physical Systems; 2014, 26; 121-128
0860-6897 - Pojawia się w:
- Vibrations in Physical Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł