Presentation 2016-05-23
Removal of Liquid in a Wavy Elongated Pore by High-Intensity Aerial Ultrasonic Waves and High Pressure aerial flow
Kohei Ishii, Ayumu Osumi, Youichi Ito,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We experimentally studied a method which a liquid that has entered a elongated pore with open ends can be removed from the pore by using acoustic radiation force generated by high-intensity aerial ultrasonic wave at a frequency of 20 kHz. In this method, it has expected that the liquid can be removed effectively because a sound wave invaded easily to the pore with a complicated shape for which the liquid removal is difficult by an air stream. In previously study, it has clarified that this method instantaneously removed the liquid that has entered the elongated pores with linear shape and L shape (0.6 mm : diameter, 20 mm : length). However, this method had a problem that a droplet on the wall of pore couldn’t be removed completely by the sound wave irradiation. In addition, the droplet on the wall of pore remained to be trapped by the standing wave which has formed in the hole was also the problem. Therefore, we proposed a new method is used high-intensity aerial ultrasonic wave and air stream to attempt an improvement of removal performance to remove the residual liquid.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) very High-intensity ultrasonic waves / elongated pore / capillary force / liquid removal / acoustic radiation force
Paper # US2016-13
Date of Issue 2016-05-16 (US)

Conference Information
Committee US
Conference Date 2016/5/23(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Nobuyuki Endo(Kanagawa Univ.)
Vice Chair Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.)
Secretary Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama)
Assistant Takeshi Morita(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Removal of Liquid in a Wavy Elongated Pore by High-Intensity Aerial Ultrasonic Waves and High Pressure aerial flow
Sub Title (in English)
Keyword(1) very High-intensity ultrasonic waves
Keyword(2) elongated pore
Keyword(3) capillary force
Keyword(4) liquid removal
Keyword(5) acoustic radiation force
1st Author's Name Kohei Ishii
1st Author's Affiliation Nihon University(Nihon Univ.)
2nd Author's Name Ayumu Osumi
2nd Author's Affiliation Nihon University(Nihon Univ.)
3rd Author's Name Youichi Ito
3rd Author's Affiliation Nihon University(Nihon Univ.)
Date 2016-05-23
Paper # US2016-13
Volume (vol) vol.116
Number (no) US-61
Page pp.pp.7-12(US),
#Pages 6
Date of Issue 2016-05-16 (US)