Article
Agronomy
Wanting Yang, Weidong Jia, Mingxiong Ou, Wei Zhong, Li Jiang, Xiaowen Wang
Summary: This study investigated the different morphological characteristics between emulsions and water during atomisation at different pressures, analysed the effect of liquid sheet structure on droplet size distribution, and found a correlation between the intensity of liquid sheet disturbance and droplet size distribution.
Article
Thermodynamics
Zhi-Fu Zhou, Jing Yin, Xiao-Yu Yang, Bin Chen, Bing Liu
Summary: Two-phase flashing spray generates fine atomization with small size and low temperature droplets through explosive atomization and strong evaporation. This study experimentally investigated the macroscopic spray and microscopic droplets of R404A refrigerant, revealing changes in droplet diameter and velocity with increasing axial distance, showing Gaussian distributions. The two-dimensional thermal field contractively patterned after rapid expansion at the nozzle exit, aiding in precise control of the spray cooling area.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Pharmacology & Pharmacy
Johanna Dieplinger, Christina Moser, Gerhard Koenig, Joana T. Pinto, Amrit Paudel
Summary: This study investigated the effect of different saccharides on enzyme activity during protein drying. The results showed that trehalose dihydrate (TD) increased the activity of catalase, while hydroxypropyl beta-cyclodextrins (HPB) preserved the activity of trypsin during both miniaturized drying (MD) and spray drying (SD). Molecular docking and simulation revealed the difference in binding affinity between HP and HPB with trypsin. The experimental and modeling results shed light on the importance of protein and saccharide size in preserving activity during drying.
Article
Energy & Fuels
Rui Liu, Lingfeng Zhong, Songhong Li, Jing Li, Haocheng Ji
Summary: This study investigates the influence of GAAI spray characteristics on biodiesel through numerical simulation. The results show that ambient pressure, fuel injection duration, and ambient temperature all play important roles in spray characteristics.
Article
Geosciences, Multidisciplinary
A. Berny, S. Popinet, T. Seon, L. Deike
Summary: Based on high fidelity numerical simulations and experimental validation, it is found that the production of jet drops from bursting bubbles is influenced by factors such as bubble size and visco-capillary length. The number and size of the jet drops depend on bubble characteristics, with consideration for temperature variations.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Thermodynamics
Yogesh Aradhey, Chuchen Li, Joseph Meadows
Summary: This investigation explores the coupling between a spray and a thermoacoustic instability using droplet data from a combustion instability. The commonly accepted ensemble averaging techniques are found to be inadequate, and a new approach based on droplet surface area is used instead. The study extends the understanding of nonreacting acoustic-spray interactions and considers them in a fully self-excited instability.
COMBUSTION AND FLAME
(2023)
Article
Agronomy
Shougen Li, Chongchong Chen, Yaxiong Wang, Feng Kang, Wenbin Li
Summary: This study analyzed the influence of spray parameters and spatial position in the flow field on the atomization characteristics of flat fan nozzles, and established droplet size and velocity models. The results showed a positive correlation between droplet size and equivalent orifice diameter of the nozzles at constant spray pressure and angle, and a negative correlation between spray angle and distance with droplet velocity. Spray distance did not affect droplet size at constant spray pressure. Additionally, spray angle greatly affected droplet velocity along the X-axis, and spray parameters, especially spray angle, significantly influenced droplet size.
Article
Environmental Sciences
Javad Babagoli Matikolaei
Summary: The study shows that oil pollution in the Caspian Sea mainly originates from the northern and middle basins but eventually flows towards the southern basin. Physical processes like eddies in the southern basin cause the size of oil spill clusters to decrease. Additionally, the mixed layer depth in the southern basin is estimated to be between 25-35 meters.
MARINE POLLUTION BULLETIN
(2021)
Article
Geosciences, Multidisciplinary
L. E. Revell, N. E. Wotherspoon, O. J. Jones, Y. A. Bhatti, J. H. T. Williams, S. L. Mackie, J. P. Mulcahy
Summary: The production of marine aerosols is influenced by wind speed, particularly in the Southern Ocean, where enhanced aerosol concentrations as a result of surface cooling reduce near-surface westerly jet, thus decreasing aerosol production. Research indicates that there is a feedback mechanism between the atmosphere and ocean that partially regulates the production of sea spray aerosol.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Abhishek Kaushal, Shraga Shoval, Bernard P. Binks, Edward Bormashenko
Summary: The impact of liquid marbles coated with different hydrophobic powders on various solid substrates was investigated. The contact time of the bouncing marbles was studied and a scaling behavior of the contact time as a function of Weber number was established. The spreading time and retraction time of the marbles were found to be weakly dependent on the Weber number. The scaling law changed at a threshold Weber number, which was attributed to the breaking of the Leidenfrost regime.
Article
Pharmacology & Pharmacy
Arun Kolanjiyil, Ali Alfaifi, Ghali Aladwani, Laleh Golshahi, Worth Longest
Summary: A new computational fluid dynamics (CFD) framework was developed to simulate nasal spray delivery and evaluate the effectiveness of existing spray products. By considering the interaction between spray and the nasal wall surface, as well as the motion of the liquid after deposition, this new model provides a better understanding of the spray droplet behavior in the nasal cavity and can guide the development of more effective nasal drug delivery strategies.
Article
Nuclear Science & Technology
Jingyu Wei, Jueqin Peng, Yuefeng Guo, Xianbao Yuan, Binhang Zhang, Jianjun Zhou, Xiaochao Du, Senquan Yang, Yunlong Chen
Summary: Spray systems are effective in removing radioactive aerosols in severe accidents. In this study, an improved model is presented to predict the evolution of aerosol particles with the activation of the spray system. The model is validated using experimental data and it is found that the activation of the spray system leads to easier capture of large aerosol particles and a decrease in the aerosol mean diameter. The analysis also shows that small spray droplets are more effective in aerosol removal and the removal rate is faster when the standard deviation of the spray droplet distribution is larger or when the mean diameter is smaller.
NUCLEAR ENGINEERING AND DESIGN
(2023)
Article
Geochemistry & Geophysics
Aijing Song, Jianlong Li, Narcisse T. Tsona, Lin Du
Summary: Sea spray aerosols (SSA) are important contributors to the global aerosol load and have a significant impact on the global climate system and chemical processes. This paper reviews the parametric dependence of SSA production fluxes on environmental variables, particularly focusing on the differences in sea spray source functions (SSSFs) and their application in global climate models and chemical transport models. The paper summarizes the influencing factors of SSA production and the progress in understanding SSSFs, and discusses the application of SSSFs in different models. The review highlights the need for further research in parameterizing SSA production fluxes to improve model simulations and evaluate the impact of SSA emissions.
APPLIED GEOCHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Kyle J. Angle, Daniel R. Crocker, Rebecca M. C. Simpson, Kathryn J. Mayer, Lauren A. Garofalo, Alexia N. Moore, Stephanie L. Mora Garcia, Victor W. Or, Sudarshan Srinivasan, Mahum Farhan, Jon S. Sauer, Christopher Lee, Matson A. Pothier, Delphine K. Farmer, Todd R. Martz, Timothy H. Bertram, Christopher D. Cappa, Kimberly A. Prather, Vicki H. Grassian
Summary: This research demonstrates that freshly emitted sea spray aerosols have significantly lower pH values than seawater, with smaller aerosol particles having even lower pH values. Aerosol acidity is found to be correlated with dissolved carbon dioxide but not with marine biology within seawater. The study discusses the mechanisms and implications of this acidity on atmospheric chemistry.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Environmental Sciences
Wei Lu, Xiaoping Ouyang, Wenjun Zhu
Summary: A spray distribution characterization system is developed in this study to measure the spray droplet size and concentration at different speeds in a simulation tunnel. The results show that the droplet size reaches 5.416 μm through particle collision and evaporation. The spray concentration decreases to a valley at 15 m and then increases again, while the condition varies at a speed of 0.5 m/s. This study provides insights for spray characterization and supports dust reduction through spraying.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2023)
Article
Engineering, Civil
Arvin Saket, William L. Peirson, Michael L. Banner, Michael J. Allis
COASTAL ENGINEERING
(2018)
Article
Mechanics
Morteza Derakhti, Michael L. Banner, James T. Kirby
JOURNAL OF FLUID MECHANICS
(2018)
Article
Mechanics
X. Barthelemy, M. L. Banner, W. L. Peirson, F. Fedele, M. Allis, F. Dias
JOURNAL OF FLUID MECHANICS
(2018)
Article
Oceanography
Peter P. Sullivan, Michael L. Banner, Russel P. Morison, William L. Peirson
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2018)
Article
Multidisciplinary Sciences
Toshiaki Shinoda, Luis Zamudio, Yanjuan Guo, E. Joseph Metzger, Chris W. Fairall
SCIENTIFIC REPORTS
(2019)
Article
Meteorology & Atmospheric Sciences
Diana Greenslade, Mark Hemer, Alex Babanin, Ryan Lowe, Ian Turner, Hannah Power, Ian Young, Daniel Ierodiaconou, Greg Hibbert, Greg Williams, Saima Aijaz, Joao Albuquerque, Stewart Allen, Michael Banner, Paul Branson, Steve Buchan, Andrew Burton, John Bye, Nick Cartwright, Amin Chabchoub, Frank Colberg, Stephanie Contardo, Francois Dufois, Craig Earl-Spurr, David Farr, Ian Goodwin, Jim Gunson, Jeff Hansen, David Hanslow, Mitchell Harley, Yasha Hetzel, Ron Hoeke, Nicole Jones, Michael Kinsela, Qingxiang Liu, Oleg Makarynskyy, Hayden Marcollo, Said Mazaheri, Jason McConochie, Grant Millar, Tim Moltmann, Neal Moodie, Joao Morim, Russel Morison, Jana Orszaghova, Charitha Pattiaratchi, Andrew Pomeroy, Roger Proctor, David Provis, Ruth Reef, Dirk Rijnsdorp, Martin Rutherford, Eric Schulz, Jake Shayer, Kristen Splinter, Craig Steinberg, Darrell Strauss, Greg Stuart, Graham Symonds, Karina Tarbath, Daniel Taylor, James Taylor, Darshani Thotagamuwage, Alessandro Toffoli, Alireza Valizadeh, Jonathan van Hazel, Guilherme Vieira da Silva, Moritz Wandres, Colin Whittaker, David Williams, Gundula Winter, Jiangtao Xu, Aihong Zhong, Stefan Zieger
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2020)
Article
Engineering, Geological
Steven Savage, Kurt Douglas, Robin Fell, William Peirson, Richard Berndt
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2019)
Article
Oceanography
Morteza Derakhti, James T. Kirby, Michael L. Banner, Stephan T. Grilli, Jim Thomson
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2020)
Article
Mechanics
Francesco Fedele, Michael L. Banner, Xavier Barthelemy
JOURNAL OF FLUID MECHANICS
(2020)
Article
Engineering, Civil
Stefan Felder, Laura Montano, Hanwen Cui, William Peirson, Matthias Kramer
Summary: Previous research has shown that the inflow conditions upstream of hydraulic jumps can affect flow aeration, bed pressures and turbulence. Detailed measurements of the free-surface features in fully aerated hydraulic jumps with partially and fully developed inflow conditions have been conducted. The results indicate that the inflow conditions strongly influence the free-surface profile, roller length, free-surface and jump toe movements.
JOURNAL OF HYDRAULIC RESEARCH
(2021)
Article
Engineering, Civil
William L. Peirson, John H. Harris, Richard T. Kingsford, Xi Mao, Stefan Felder
Summary: This study introduces a novel lifting mechanism for fish in hydraulic structures, providing an effective method for safely transporting Australian native fish over embankments. By using simple conduits and valves, significant volumes of water can be lifted from the base of a dam to its crest. The research explores scaling up this piped system while mitigating turbulence impacts on fish, proposing new methods for characterizing hydraulic efficiency in fishways.
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH
(2021)
Article
Engineering, Civil
William L. Peirson, Vishakulan Prapakaran, Robin Fell, Kurt Douglas
Summary: This article summarizes experiments and formal boundary layer analysis of flow through transverse cracks in embankment dams. The critical hydraulic gradients for erosion initiation in such cracks occur at the downstream end of the crack. The flow characteristics of the two principal crack geometries are presented, which is a significant improvement on previous methods used to assess internal erosion in transverse cracks in dams.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Mechanics
Daniel G. Boettger, Shane R. Keating, Michael L. Banner, Russel P. Morison, Xavier Barthelemy
Summary: The dynamic understanding of surface gravity wave breaking remains a challenge in fluid dynamics. By studying non-breaking and breaking wave crests in simulated wave packets, we find that breaking onset is preceded by a rapid increase in the rate of convergence of kinetic energy. This energetic signature predicts the occurrence and strength of the breaking event.
JOURNAL OF FLUID MECHANICS
(2023)
Proceedings Paper
Mechanics
Peter P. Sullivan, Michael L. Banner, Russel P. Morison, William L. Peirson
IUTAM SYMPOSIUM ON WIND WAVES
(2018)