H. Kurahara, K. Ando, Ultra-high-speed photography and hydrophone measurement of laser-induced shock waves in liquids: Viscous effects on spherical shock dynamics. Submitted.
K. Yamamoto, K. Ando, Experimental study on generation of negative pressure by non-spherical bubble collapse from single pulse laser focusing in water. Submitted.
T. Thungthong, S. Funatani, K. Ando, W. Chaiworapuek, Heat transfer enhancement in laminar water flow through a square channel by streamwise ultrasound irradiation. International Journal of Thermal Sciences194, 108582 (2023). [link]
K. Ando, R. Sakota, H. Usui, T. Ishibashi, H. Matsuo, K. Watanabe, Optimal injection distance in ultrasonic water flow cleaning. Solid State Phenomena346, 258–262 (2023). [open access]
T. Ishibashi, H. Matsuo, K. Watanabe, R. Sakota, H. Usui, K. Ando, Parametric studies on particle
removal and erosion in nozzle injection megasonic cleaning. Solid State Phenomena346, 253–257 (2023). [open access]
Y. Kurashina, R. Asano, M. Matsui, T. Nomoto, K. Ando, K. Nakamura, N. Nishiyama, Y. Kitamoto, Quantitative analysis of acoustic pressure for sonophoresis and its effect on transdermal penetration. Ultrasound in Medicine & Biology48, 933–944 (2022). [link]
B.N. Sahoo, S.Y. Han, N.P. Yerriboina, H. Kim, K. Ando, T.G. Kim, B. Kang, A. Klipp, J.G. Park, Chemically controlled megasonic cleaning of patterned structures using solutions with dissolved gas and surfactant. Ultrasonics Sonochemistry82, 105859 (2022). [open access]
K. Murakami, Y. Yamakawa, J.Y. Zhao, E. Johnsen, K. Ando, Ultrasound-induced nonlinear oscillations of a spherical bubble in a gelatin gel. Journal of Fluid Mechanics924, A38 (2021). [open access]
T. Oyama, C. Imashiro, T. Kuriyama, H. Usui, K. Ando, T. Azuma, A. Morikawa, K. Hodeki, O. Takahara, K. Takemura, Acoustic streaming induced by MHz-frequency ultrasound extends the volume limit of cell suspension culture. Journal of the Acoustical Society of America149, 4180–4189 (2021). [link]
T. Kubota, Y. Kurashina, J.Y. Zhao, K. Ando, H. Onoe, Ultrasound-triggered on-demand drug delivery using hydrogel microbeads with release enhancer. Materials & Design203, 109580 (2021). [open access]
K. Ando, M. Sugawara, R. Sakota, T. Ishibashi, H. Matsuo, K. Watanabe, Particle removal in ultrasonic water flow cleaning: Role of cavitation bubbles as cleaning agents. Solid State Phenomena314, 218–221 (2021). [open access]
Y. Katano, K. Ando, Interaction between free-surface oscillation and cavitation-bubble translation in a megasonic cleaning bath. Solid State Phenomena314, 202–206 (2021). [open access]
T. Tanaka, K. Ando, Simulation of Rayleigh bubble growth near a no-slip rigid wall. Solid State Phenomena314, 192–196 (2021). [open access]
H. Usui, T. Ishibashi, H. Matsuo, K. Watanabe, K. Ando, Visualization of acoustic waves and cavitation in ultrasonic water flow. Solid State Phenomena314, 186–191 (2021). [open access]
K. Ando, E. Shirota, Quasistatic growth of bubbles in a gelatin gel under dissolved-gas supersaturation. Physics of Fluids31(11), 111701 (2019). [link, manuscript]
T. Yamashita, K. Ando, Low-intensity ultrasound induced cavitation and streaming in oxygen-supersaturated water: Role of cavitation bubbles as physical cleaning agents. Ultrasonics Sonochemistry52, 268–279 (2019). [link] (This article is featured in Keio Research Highlights. [link])
T. Kondo, K. Ando, Simulation of high-speed droplet impact against a dry/wet rigid wall for understanding the mechanism of liquid jet cleaning. Physics of Fluids31(1), 013303 (2019). [link, manuscript] (This article is featured as an Editor's pick. [link1, link2])
Y. Kurashina, T. Yamashita, S. Kurabayashi, K. Takemura, K. Ando, Growth control of leaf lettuce with exposure to underwater ultrasound and dissolved oxygen supersaturation. Ultrasonics Sonochemistry51, 292–297 (2019). [link]
R. Oguri, K. Ando, Cavitation bubble nucleation induced by shock-bubble interaction in a gelatin gel. Physics of Fluids30(5), 051904 (2018). [link, manuscript]
T. Yamashita, K. Ando, Aeration of water with oxygen microbubbles and its purging effect. Journal of Fluid Mechanics825, 16–28 (2017). [link]
N. Sugita, K. Ando, T. Sugiura, Experiment and modeling of translational dynamics of an oscillating bubble cluster in a stationary sound field. Ultrasonics77, 160–167 (2017). [link]
T. Kondo, K. Ando, One-way-coupling simulation of cavitation accompanied by high-speed droplet impact. Physics of Fluids28(3), 033303 (2016). [link]
A. Kiyama, Y. Tagawa, K. Ando, M. Kameda, Effects of a water hammer and cavitation on jet formation in a test tube. Journal of Fluid Mechanics787, 224–236 (2016). [link]
F. Hamaguchi, K. Ando, Linear oscillation of gas bubbles in a viscoelastic material under ultrasound irradiation. Physics of Fluids27(11), 113103 (2015). [link]
Z. G. Li, S. Xiong, L. K. Chin, K. Ando, J. B. Zhang, A. Q. Liu, Water's tensile strength measured using an optofluidic chip. Lab on a Chip15, 2158–2161 (2015). [link] (The graphics is selected as the front cover. [link])
S. Xiong, L. K. Chin, K. Ando, T. Tandiono, A. Q. Liu, C. D. Ohl, Droplet generation via a single bubble transformation in a nanofluidic channel. Lab on a Chip15, 1451–1457 (2015). [link]
O. Vincent, P. Marmottant, S. R. Gonzalez-Avila, K. Ando, C. D. Ohl, The fast dynamics of cavitation bubbles within water confined in elastic solids. Soft Matter10, 1455–1461 (2014). [link] (The graphics is selected as the front cover. [link])
P. A. Quinto-Su, K. Ando, Nucleating bubble clouds with a pair of laser-induced shocks and bubbles. Journal of Fluid Mechanics733, R3 (2013). [link]
K. Ando, A. Q. Liu, C. D. Ohl, Homogeneous nucleation in water in microfluidic channels. Physical Review Letters109, 044501 (2012). [link]
T. Sanada, K. Ando, T. Colonius, Effects of target compliance on a high-speed droplet impact. Solid State Phenomena187, 137–140 (2012). [link]
T. Sanada, K. Ando, T. Colonius, A computational study of high speed droplet impact. Fluid Dynamics & Materials Processing7, 329–340 (2011). [link]
Z. G. Li, K. Ando, J. Q. Yu, A. Q. Liu, J. B. Zhang, C. D. Ohl, Fast on-demand droplet fusion using transient cavitation bubbles. Lab on a Chip11, 1879–1885 (2011). [link]
K. Ando, T. Colonius, C. E. Brennen, Numerical simulation of shock propagation in a polydisperse bubbly liquid. International Journal of Multiphase Flow37, 596–608 (2011). [link]
K. Ando, T. Sanada, K. Inaba, J. S. Damazo, J. E. Shepherd, T. Colonius, C. E. Brennen, Shock propagation through a bubbly liquid in a deformable tube. Journal of Fluid Mechanics671, 339–363 (2011). [link]
K. Ando, T. Colonius, C. E. Brennen, Improvement of acoustic theory of ultrasonic waves in dilute bubbly liquids. Journal of the Acoustical Society of America126, EL69–EL74 (2009). [link]
T. Colonius, R. Hagmeijer, K. Ando, C. E. Brennen, Statistical equilibrium of bubble oscillations in dilute bubbly flows. Physics of Fluids20(4), 040902 (2008). [link]
Books and Reviews
K. Ando, Cavitation bubble collapse and its erosive effect. Electrical Review (in Japanese)104(6), 59–61 (2019). [link]
K. Ando, T. Yamashita, Effects of dissolved gas concentration on ultrasonic cavitation erosion. Ultrasonic Technology (in Japanese)31(1), 25–27 (2019). [link]
T. Yamashita, R. Yamauchi, K. Ando, Progress in ultrasonic cleaning research. Japanese Journal of Multiphase Flow32(2), 210–217 (2018). [link]
K. Ando, Cloud dynamics of dispersed bubbles and their effect on underwater acoustics. Ultrasonic Technology (in Japanese)30(2), 30–33 (2018). [link]
K. Ando, Bubble collpse in mechanical engineering. TEPCO Memorial Foundation News (in Japanese), No. 50, 1–3 (2017). [link]
K. Ando, Fundamentals and applications of the dynamics of ultrasonic cavitation bubbles. Trends in the Sciences (in Japanese)22(3), 32–37 (2017). [link]
K. Ando, T. Yamashita, Cleaning by low-intensity ultrasound in oxygen-supersaturated water. Ultrasonic Technology (in Japanese)29(1), 43–46 (2017). [link]
K. Terasaka, S. Himuro, K. Ando, T. Hata, Introduction to Fine Bubble Science and Technology (Nikkan Kogyo Shimbun, 2016). [link]
K. Ando, Ultrasonic cleaning and bubbles. Transactions of the JSME (in Japanese)119, 370 (2016). [link]
K. Ando, T. Colonius, C. E. Brennen, Shock Propagation in Polydisperse Bubbly Liquids in Shock Wave Science and Technology Reference Library, edited by C. F. Delale (Springer, 2013), Vol. 8. [link, manuscript]
K. Ando, Effects of Polydispersity in Bubbly Flows. PhD thesis, California Institute of Technology (2010). [link]
Conference Proceedings
Y. Fukuchi, T. Kondo, K. Ando, Comparison in high-speed droplet impact between single and multiple collisions against a wall covered with a liquid film. ASME-JSME-KSME Joint Fluids Engineering Conference (AJKFLUIDS), San Francisco, CA, USA (2019).
T. Sato, T. Yamashita, K. Ando, Visualization of bubble dissolution as a means to measure dissolved nitrogen concentration. ASME-JSME-KSME Joint Fluids Engineering Conference (AJKFLUIDS), San Francisco, CA, USA (2019).
Y. Katano, K. Ando, Experimental study of free-surface deformation and cavitation bubble dynamics in a megasonic cleaning bath. ASME-JSME-KSME Joint Fluids Engineering Conference (AJKFLUIDS), San Francisco, CA, USA (2019).
H. Kurahara, K. Ando, Effects of liquid viscosity on laser-induced shock dynamics. ASME-JSME-KSME Joint Fluids Engineering Conference (AJKFLUIDS), San Francisco, CA, USA (2019).
K. Ando, R. Oguri, Cavitation inception induced by interaction between a laser-induced shock and a gas bubble in a gelatin gel. 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, Lisbon, Portugal (2018).
T. Yamashita, K. Ando, Laser-induced nucleation of gas bubbles in oxygen-supersaturated water. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFE9), Okinawa, Japan (2017).
R. Yamauchi, T. Yamashita, K. Ando, Gas-supersaturated water aided ultrasonic cleaning at different driving frequencies: Role of cavitation bubbles in particle removal. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFE9), Okinawa, Japan (2017).
N. Nakamura, K. Ando, Effects of nonlinear elasticity on the Rayleigh collapse of bubbles in elastic media. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFE9), Okinawa, Japan (2017).
S. Fukui, K. Ando, Ultrasound-induced dynamics of gas bubbles attached at gelatin gel surfaces. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFE9), Okinawa, Japan (2017).
K. Ando, E. Shirota, Epstein-Plesset-type analysis of quasistatic growth of bubbles in gas-supersaturated gelatin gels. 3rd International Symposium on Multiscale Multiphase Process Engineering (MMPE 2017), Toyama, Japan (2017).
T. Kondo, K. Ando, Compressible Navier-Stokes simulation of high-speed droplet impact against rigid walls. 3rd International Symposium on Multiscale Multiphase Process Engineering (MMPE 2017), Toyama, Japan (2017).
R. Oguri, K. Ando, Cloud cavitation induced by shock-bubble interaction in a viscoelastic solid. 9th International Symposium on Cavitation (CAV 2015), Lausanne, Switzerland (2015). [Journal of Physics: Conference Series656, 012032 (2015); link]
E. Shirota, K. Ando, Estimation of mechanical properties of gelatin using a microbubble under acoustic radiation force. 9th International Symposium on Cavitation (CAV 2015), Lausanne, Switzerland (2015). [Journal of Physics: Conference Series656, 012001 (2015); link]
T. Kondo, K. Ando, Numerical study of cavitation and water-hammer erosion caused by high-speed droplet impact. 13th Asian International Conference on Fluid Mechinery (AICFM 13), Tokyo, Japan (2015).
F. Hamaguchi, K. Ando, Role of viscoelasticity in the dynamics of a collapsing gas bubble in gelatin. 2nd International Symposium on Multiscale Multiphase Process Engineering (MMPE 2014), Hamburg, Germany (2014).
T. Yamashita, K. Ando, Bubble growth in tap water supersaturated with gases. 2nd International Symposium on Multiscale Multiphase Process Engineering (MMPE 2014), Hamburg, Germany (2014).
T. Kondo, K. Ando, Numerical simulation of cavitation accompanied by high-speed droplet impact. 2nd International Symposium on Multiscale Multiphase Process Engineering (MMPE 2014), Hamburg, Germany (2014).
K. Ando, The inception and collapse of cloud cavitation in shock-structure interaction problems. 8th International Conference on Multiphase Flow (ICMF 2013), Jeju, Korea (2013). [manuscript]
Z. G. Li, C. D. Ohl, K. Ando, J. B. Zhang, A. Q. Liu, Dynamic stressing measurement of viscous liquid using microfluidic chip. 26th International Conference on Micro Electro Mechanical Systems (MEMS 2013), Taipei, Taiwan (2013).
S. Xiong, Tandiono, K. Ando, C. D. Ohl, A. Q. Liu, Nano/micro jets in thin films for biomaterial manipulation and characterization. 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences (μTAS 2012), Okinawa, Japan (2012).
Z. G. Li, K. Ando, J. B. Zhang, A. Q. Liu, C. D. Ohl, Viscous effects on dynamic rupture of fluids in microfluidics. 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences (μTAS 2012), Okinawa, Japan (2012).
K. Ando, A. Q. Liu, C. D. Ohl, Vapor bubble nucleation in a sessile water drop. 8th International Symposium on Cavitation (CAV 2012), Singapore (2012). [link]
S. Xiong, A. Q. Liu, K. Ando, Tandiono, C. D. Ohl, Laser-induced cavitation bubbles in nanochannels. 8th International Symposium on Cavitation (CAV 2012), Singapore (2012). [link]
C. D. Ohl, S. Xiong, S. R. Gonzales-Avila, E. Klaseboer, A. Q. Liu, K. Ando, Cavitation in confined spaces. THE ACOUSTICS 2012, Hong Kong, China (2012). [link]
K. Ando, A. Q. Liu, C. D. Ohl, Dynamic rupture of water in microfluidics. 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences (μTAS 2011), Seattle, WA, USA (2011).
Z. G. Li, C. D. Ohl, K. Ando, J. B. Zhang, A. Q. Liu, Bubble based droplet mixers microfluidic systems. 24th International Conference on Micro Electro Mechanical Systems (MEMS 2011), Cancun, Mexico (2011).
T. Sanada, K. Ando, T. Colonius, Effects of target compliance on a high-speed droplet impact. 10th International Symposium on Ultra Clean Processing of Semiconductor Surfaces (UCPSS 2010), Ostend, Belgium (2010).
K. Ando, T. Sanada, K. Inaba, J. E. Shepherd, T. Colonius, C. E. Brennen, Shock theory of a bubbly liquid in a deformable tube. 7th International Conference on Multiphase Flow (ICMF 2010), Tampa, FL, USA (2010). [link]
T. Sanada, K. Ando, T. Colonius, Numerical analysis of high speed droplet impact. 7th International Conference on Multiphase Flow (ICMF 2010), Tampa, FL, USA (2010). [link]
K. Ando, T. Colonius, C. E. Brennen, Shock propagation in polydisperse bubbly flows. 7th International Symposium on Cavitation (CAV 2009), Ann Arbor, MI, USA (2009).