Results 81 to 90 of about 285 (198)

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Temporal Changes in the Earth's Outer Core From Nuclear‐Test PKP Waves

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract We investigate temporal changes in P‐wave velocity in the outer core using short‐period PKP waves generated by underground nuclear tests conducted in French Polynesia and recorded at seismic station BRVK in Kazakhstan. The observed first arriving PKP phase cannot be explained by ray theory.
Ying Zhou
wiley   +1 more source

Flow-field analysis and performance assessment of rotating detonation engines under different number of discrete inlet nozzles

Applications in Energy and Combustion Science
This study explores in depth rotating detonation engines (RDEs) fueled by premixed stoichiometric hydrogen/air mixtures through two-dimensional numerical simulations including a detailed chemical kinetic mechanism.
Sebastian Valencia, Andres Mendiburu, Luis Bravo, Prashant Khare, Cesar Celis   +4 more
doaj   +1 more source

Numerical investigation of film cooling characteristics in a rotating detonation combustor with Tesla-valve configuration

Case Studies in Thermal Engineering
The extreme thermal loads and highly unsteady pressure fluctuations generated by detonation waves in rotating detonation engines (RDEs) pose severe challenges to combustor wall durability.
Jia Tian, Yingxin Zhang, Likeng Huang, Xiaoming Tan, Hao Wan, Boran Zhang, Jingyang Li, Xuewen Ma   +7 more
doaj   +1 more source

Effects of the injection area ratios on the propagating characteristics of ethylene/air rotating detonation waves

Propulsion and Energy
Numerical simulations are performed to investigate the propagation characteristics of ethylene/air rotating detonation waves in a two-dimensional computational domain, by solving the Navier–Stokes equations with an in-house code.
Zhenyi Chen, Sihang Rao, Jian Peng, Xu Xu   +3 more
doaj   +1 more source

High-resolution numerical simulation of rotating detonation waves with parallel adaptive mesh refinement

Applications in Energy and Combustion Science
Simulations of rotating detonation engines are still dominated by solvers on uniform or statically refined meshes. Here, simulations of premixed rotating detonation waves are conducted using the block-structured adaptive mesh refinement (SAMR) technique.
Han Peng, Ralf Deiterding
doaj   +1 more source

Selected topics from the 28th International Colloquium on the Dynamics of Explosions and Reactive Systems, Naples, Italy, June 19-24, 2022. [PDF]

Shock Waves, 2023
Ciccarelli G.
europepmc   +1 more source

Rotating Detonation Combustion Characteristics of Kerosene-Fueled Wide-Area Scramjets

气体物理
Through the method of three-dimensional numerical simulation, the rotating detonation combustion characteristics of kerosene-fueled scramjets in the range of Ma＝3~7 were studied. In the flight condition of Ma=3, due to the poor effect of fuel atomization
Chen SHU, Futao GU, Bin CHEN, Chenglong YAN, Yiheng TONG, Wei LIN   +5 more
doaj   +1 more source

Numerical Analysis of the Characteristic Chemical Timescale of a C₂H₄/O₂ Non-Premixed Rotating Detonation Engine

Energies
A three-dimensional numerical investigation using ethylene–oxygen was conducted to examine the characteristics of detonation waves in a non-premixed rotating detonation engine (RDE) across three equivalence ratio conditions: fuel-lean, stoichiometric ...
Mohammed Niyasdeen Nejaamtheen, Bu-Kyeng Sung, Jeong-Yeol Choi   +2 more
doaj   +1 more source

Detonation Waves on Enhancing Aerospace Propulsion Systems Performances: A Review

Aerospace
Detonation-based combustion has re-emerged as a promising pathway for enhancing the efficiency and compactness of future aerospace propulsion systems, motivated by the intrinsic pressure-gain characteristics of detonative heat release.
Bogdan-Cătălin Năvligu, Grigore Cican , Răzvan Edmond Nicoară, Theodor-Mihnea Sîrbu   +3 more
doaj   +1 more source