Results 1 to 10 of about 1,199,165 (253)

Flexural phonon instability defines intrinsic van der Waals elastic limits in the interlayer direction [PDF]

Nature Communications
Frenkel’s cohesive model predicts an ideal elastic strain limit of ~10% for strong solids, a bound upheld in conventional materials. We demonstrate that such consistency breaks down in van der Waals (vdW) solids, challenging established strength theories.
Heyi Wang, Miaojie Liu, Jiayi Li, Shizhe Feng, Yuan Hou, Man Kit Cheng, Ke Cao, Fanling Meng, Juzheng Chen, Zhiping Xu, Yang Lu   +10 more
doaj   +2 more sources

The Effects of the Activation Energy on the Intrinsic Instability of Adiabatic and Non-Adiabatic Premixed Flames

Journal of Fluid Science and Technology, 2008
The effects of the activation energy on the intrinsic instability of adiabatic and non-adiabatic premixed flames were studied by two-dimensional unsteady calculations of reactive flows based on the compressible Navier-Stokes equation.
Amornrat KAEWPRADAP, Satoshi KADOWAKI
doaj   +3 more sources

Intrinsic instability of lean hydrogen/ammonia premixed flames: Influence of Soret effect and pressure

Fuel Communications
The addition of hydrogen in ammonia/air mixtures can lead to the onset of intrinsic flame instabilities at conditions of technical relevance. The length and time scales of intrinsic instabilities can be estimated by means of linear stability analysis of ...
F. D’Alessio, C. Matteucci, P.E. Lapenna, F. Creta   +3 more
doaj   +3 more sources

Dynamic behavior and flame acceleration of spherically expanding hydrogen flames under the low-pressure conditions

Nihon Kikai Gakkai ronbunshu, 2023
To investigate the dynamic behavior and flame acceleration of spherically expanding hydrogen flames under the low-pressure conditions, the deflagration experiments were conducted in a closed combustion chamber. The dynamic behavior of hydrogen flames was
Toshiyuki KATSUMI, Shinya YAZAWA, Masashi KUMADA, Daisuke SATO, Satoshi KADOWAKI   +4 more
doaj   +1 more source

The effects of addition of carbon dioxide and water vapor on the dynamic behavior of spherically expanding hydrogen/air premixed flames

Journal of Thermal Science and Technology, 2021
Utilizing efficiently and securely hydrogen as clean energy source, it is required not only to analyze the experimental data under a certain condition but also to create the mathematical model for the prediction of flame propagation velocity under ...
Toshiyuki KATSUMI, Yasuhito YOSHIDA, Ryo NAKAGAWA, Shinya YAZAWA, Masashi KUMADA, Daisuke SATO, Thwe Thwe Aung, Nabiha CHAUMEIX, Satoshi KADOWAKI   +8 more
doaj   +1 more source

Effects of pressure and heat loss on the unstable motion of cellular-flame fronts caused by intrinsic instability in hydrogen-air lean premixed flames

Journal of Thermal Science and Technology, 2021
Effects of pressure and heat loss on the unstable motion of cellular-flame fronts in hydrogen-air lean premixed flames were numerically investigated. We adopted the reaction mechanism for hydrogen-oxygen combustion, modeled with seventeen reversible ...
Satoshi KADOWAKI, Thwe Thwe Aung, Taisei FURUYAMA, Kazumasa KAWATA, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source

The shape and fluctuation of hydrogen-propane-butane-air lean premixed flames formed on a flat flame burner

Journal of Thermal Science and Technology, 2021
In this paper, the characteristics of hydrogen-propane-butane-air lean premixed flames on a flat flame burner were experimentally studied. To elucidate the shape and fluctuation of premixed flames, the cell width, RMS of fluctuation, peak frequency and ...
Satoshi NAKATSURU, Amornrat KAEWPRADAP, Ryosuke NOGI, Toshiyuki KATSUMI, Daisuke SATO, Satoshi KADOWAKI   +5 more
doaj   +1 more source

The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities in large space: fractal dimension of cellular-flame fronts

Journal of Thermal Science and Technology, 2017
The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities were numerically investigated.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source

Stable, high-performance, dendrite-free, seawater-based aqueous batteries

Nature Communications, 2021
Metal anode instability due to several intrinsic factors limits their widespread use in energy storage. Here, the authors report a 3D alloy anode via a universal alloy electrodeposition approach to overcome the anode instability issues and demonstrate a ...
Huajun Tian, Zhao Li, Guangxia Feng, Zhenzhong Yang, David Fox, Maoyu Wang, Hua Zhou, Lei Zhai, Akihiro Kushima, Yingge Du, Zhenxing Feng, Xiaonan Shan, Yang Yang   +12 more
doaj   +1 more source

Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment

Nihon Kikai Gakkai ronbunshu, 2016
Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment were studied numerically.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source