Results 41 to 50 of about 53,996 (279)

Numerical analysis on acoustic coupling of spinning detonation in a square tube

Journal of Thermal Science and Technology, 2016
We investigate spinning detonations propagating in a square tube using numerical simulations based on three-dimensional compressible Euler equations and the two-step-reaction model proposed by Korobeinikov et al. The dynamics of the simulation results is
Yuta SUGIYAMA, Akiko MATSUO
doaj   +1 more source

Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines

气体物理, 2023
In this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow ...
Song-bai YAO, Xin-meng TANG, Wen-wu ZHANG   +2 more
doaj   +1 more source

Kinetic modeling of detonation and effects of negative temperature coefficient

, 2016
The kinetic modeling and simulation of reactive flows, especially for those with detonation, are further investigated. From the theoretical side, a new set of hydrodynamic equations are deduced, where the viscous stress tensor and heat flux are replaced ...
Lin, Chuandong, Xu, Aiguo, Zhang, Guangcai, Zhang, Yudong, Zhu, Chengmin   +4 more
core   +1 more source

Towards an understanding of Type Ia supernovae from a synthesis of theory and observations

, 2013
Motivated by the fact that calibrated light curves of Type Ia supernovae (SNe Ia) have become a major tool to determine the expansion history of the Universe, considerable attention has been given to, both, observations and models of these events over ...
Hillebrandt, W., Kromer, M., Ruiter, A. J., Röpke, F. K.   +3 more
core   +1 more source

Experimental study on propagation characteristics of rotating detonation wave of liquid kerosene with oxygen-enriched air

Journal of Physics: Conference Series, 2023
In order to study the propagation characteristics of rotating detonation wave (RDW) of liquid fuel, an experimental study was carried out with liquid kerosene at room temperature as fuel and oxygen-enriched air with oxygen volume fraction of 38.5% as ...
Xin-li Han, Q. Zheng, Hanli Huang, Pufeng Xu, Xingang Wu, C. Weng   +5 more
semanticscholar   +1 more source

Research Progress on Rotating Detonations of Liquid Hydrocarbon Fuels [PDF]

Hangkong bingqi
Detonation waves propagate at velocities exceeding 1 000 m/s, enabling the reactants to complete reaction without significant expansion, thereby an isochoric combustion process can be achieved.
Wang Ke, Yu Xiaodong, Zhang Zhenrui, Fan Wei
doaj   +1 more source

White Dwarf Mergers on Adaptive Meshes I. Methodology and Code Verification

, 2016
The Type Ia supernova progenitor problem is one of the most perplexing and exciting problems in astrophysics, requiring detailed numerical modeling to complement observations of these explosions.
Almgren, Ann S., Calder, Alan C., Katz, Max P., Swesty, F. Douglas, Zhang, Weiqun, Zingale, Michael   +5 more
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters

Energies, 2022
A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found
Shida Xu, Feilong Song, Jianping Zhou, Xingkui Yang, Peng Cheng   +4 more
doaj   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source