G-23 Acoustic Absorption Characteristics of Perforated Plate with Air Jets

2016 ◽  
Vol 2016.69 (0) ◽  
pp. 303-304
Author(s):  
Masanori MIYAZAKI ◽  
Taiki YAMAI ◽  
Hiromitsu HAMAKAWA ◽  
Eiichi NISHIDA ◽  
Toru OTSURU ◽  
...  
Keyword(s):  
Perforated Plate ◽  
Acoustic Absorption ◽  
Air Jets ◽  
Absorption Characteristics

Effect of Air Jets on Acoustic Absorption Characteristics of Perforated Plate with Cavity

2016 ◽  
Vol 2016.26 (0) ◽  
pp. 119
Author(s):  
Yutaro OSATO ◽  
Hiromitsu HAMAKAWA ◽  
Masanori MIYAZAKI ◽  
Eiichi NISHIDA ◽  
Eru KURIHARA ◽  
...  
Keyword(s):  
Perforated Plate ◽  
Acoustic Absorption ◽  
Air Jets ◽  
Absorption Characteristics

1209 Effect of Air Jets on Acoustic Absorption Characteristics of Perforated Plate with Cavity

2015 ◽  
Vol 2015 (0) ◽  
pp. _1209-1_-_1209-2_
Author(s):  
Hiromitsu HAMAKAWA ◽  
Taiki YAMAI ◽  
Eiichi NISHIDA ◽  
Toru OTSURU ◽  
Reiji TOMIKU ◽  
...  
Keyword(s):  
Perforated Plate ◽  
Acoustic Absorption ◽  
Air Jets ◽  
Absorption Characteristics

4B3 Acoustic Absorption Characteristics of Tube Bundle and Perforated Plate with Cavity in Cross Flow

2014 ◽  
Vol 2014 (0) ◽  
pp. _4B3-1_-_4B3-2_
Author(s):  
Taiki YAMAI ◽  
HIROKI MATSUOKA ◽  
Hiromitsu HAMAKAWA ◽  
Toru OTSURU ◽  
Reiji TOMIKU ◽  
...  
Keyword(s):  
Tube Bundle ◽  
Perforated Plate ◽  
Cross Flow ◽  
Acoustic Absorption ◽  
Absorption Characteristics

Effect of Air Flow on Acoustic Absorption Characteristics of Perforated Plate

2019 ◽  
Vol 2019.72 (0) ◽  
pp. D34
Author(s):  
Kentaro NAKAHARA ◽  
Akira SHIMOOKA ◽  
Tosiaki SASAKI ◽  
Hiromitsu HAMAKAWA ◽  
Eru KURIHARA
Keyword(s):  
Air Flow ◽  
Perforated Plate ◽  
Acoustic Absorption ◽  
Absorption Characteristics

scholarly journals Acoustic Absorption Characteristics of Perforated Thin Plate with Air Jets and Cavity

2015 ◽  
Vol 05 (01) ◽  
pp. 1-9 ◽  
Author(s):  
Hiromitsu Hamakawa ◽  
Hiroki Matsuoka ◽  
Taiki Yamai ◽  
Kenta Asakura ◽  
Toru Otsuru ◽  
...  
Keyword(s):  
Thin Plate ◽  
Acoustic Absorption ◽  
Air Jets ◽  
Absorption Characteristics

Prediction of acoustic absorption performance of a perforated plate with air jets

2017 ◽  
Vol 26 (4) ◽  
pp. 378-384 ◽  
Author(s):  
Hiromitsu Hamakawa ◽  
Masanori Miyazaki ◽  
Yuta Asai ◽  
Eru Kurihara ◽  
Eiichi Nishida ◽  
...  
Keyword(s):  
Perforated Plate ◽  
Acoustic Absorption ◽  
Air Jets ◽  
Absorption Performance

Heat Transfer by a Square Array of Round Air Jets Impinging Perpendicular to a Flat Surface Including the Effect of Spent Air

1970 ◽  
Vol 92 (1) ◽  
pp. 73-82 ◽  
Author(s):  
D. M. Kercher ◽  
W. Tabakoff
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Perforated Plate ◽  
Graphical Form ◽  
Surface Distance ◽  
Air Jets ◽  
Degradation Factor ◽  
Spacing Parameter ◽  
Square Array ◽  
The Heat Transfer Coefficient

The results of an experimental investigation on the average surface heat transfer co-efficients under a perforated plate of multiple, square array, round impinging air jets are presented. Correlation of the heat transfer performance in a semi-enclosed environment is presented. The correlation includes the effects of the jet “spent air” flowing perpendicular to the jets; the effects of the jet diameter, jet spacing, and jet-to-surface distance. The data cover a range of jet diameter Reynolds number from 3 × 102 to 3 × 104, jet spacing from 3.1 to 12.5 dia, and plate-to-surface distance of 1.0 to 4.8 dia. The results are compared with previously reported investigations with reasonable agreement. Correlation is in the form NuD,x = φ1φ2ReDm(Zn/D)0.091Pr1/3 where φ1 and m are functions of the jet spacing parameter, Xn/D, and Reynolds number, and φ2 is the heat transfer coefficient degradation factor due to “spent air”. φ1, φ2 and m are presented in graphical form as a function of important dimensionless parameters.

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