Results 41 to 50 of about 175 (164)

An Experimental PIV/POD Study on the Sequentially Coupled Flow Field of Swirl and Multiple Jets

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
The stepwise flow reconstruction induced by sequential coupling of swirl, primary jets, and dilution jets was experimentally investigated in a model combustor using high‐speed PIV and proper orthogonal decomposition (POD). Three nonreacting configurations were compared: pure swirl, swirl plus primary jets, and swirl with both primary and dilution jets.
Qingqing Dong, Jian Chen, Kan Xie
wiley   +1 more source

Focused Power Ultrasound Mediated Inferior Perirenal Adipose Tissue Modification Therapy for Essential Hypertension: A Pilot Study

The Journal of Clinical Hypertension, Volume 27, Issue 10, October 2025.
ABSTRACT Perirenal adipose tissue (PRAT) contributes to the maintenance of elevated blood pressure through afferent nerves and serves as an important peripheral, modifiable target for hypertension management. This single‐center, prospective pilot trial assessed the feasibility and safety of a novel focused power ultrasound device for perirenal adipose ...
Yang Hua, Meng‐Huan Li, Ting‐Ting Wu, Lei Jing, Ming Jiang, Cui‐Ying Liu, Jia‐Ming Yang, Yu‐Xuan Lou, Yue Yuan, Yun‐Fan Tian, Min Zhang, Rong‐Sheng Wang, Jing Cai, Yan‐Hui Sheng, Wei Sun, Xiang‐Qing Kong   +15 more
wiley   +1 more source

Continuous and explosive synchronization transition in turbulent combustors

AIP Advances
Thermoacoustic instabilities in turbulent combustors have disastrous consequences and present notorious challenges in their modeling, prediction, and control.
Samarjeet Singh, Amitesh Roy, Jayesh M. Dhadphale, Swetaprovo Chaudhuri, R. I. Sujith   +4 more
doaj   +1 more source

Electrically Driven Supersonic Combustion

Energies, 2018
This manuscript reviews published works related to plasma assistance in supersonic combustion; focusing on mixing enhancement, ignition and flameholding. A special attention is paid for studies, which the author participated in person.
Sergey B. Leonov
doaj   +1 more source

Detached Eddy Simulation (DES) of a Turbulent Premixed Flame Stabilized on a Bluff Body

Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 2, June 2025.
ABSTRACT As the demand for net‐zero emissions intensifies, low‐emission fuels (LEFs) are increasingly explored for their potential to reduce pollutants in combustion systems. The present study investigates the flame dynamics and pollutant emissions (CO and NOx) of different LEFs using detached eddy simulations (DES), a method that offers better ...
Abdelkader Hemaizia, Dominique Thévenin, Cheng Chi   +2 more
wiley   +1 more source

Adaptive Vibration Control of the Moving Cage in the 4 ×$\times$ 4 Hyperbolic PDE‐ODE Model of the Dual‐Cable Mining Elevator

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
This paper proposes an observer‐based adaptive output‐feedback boundary control to stabilize the vibrations of the moving cage of a dual‐cable mining elevator. This system is comprised of two mechanically jointed winding drums that drive the two cables through the floating sheaves to lift the cage.
Elham Aarabi, Mohammadali Ghadiri‐Modarres, Mohsen Mojiri   +2 more
wiley   +1 more source

Exploring liquid fuel combustion dynamics in a swirl burner using dynamic mode decomposition

Engineering Applications of Computational Fluid Mechanics
Aero gas turbine engine combustors are transitioning from traditional Rich-Quench-Lean (RQL) staging to Lean Premixed Prevaporized (LPP) operation to reduce harmful NOx emissions and improve combustion efficiency.
Alireza Ghasemi, Jim B. W. Kok
doaj   +1 more source

Boosting flexible electronics with integration of two‐dimensional materials

InfoMat, Volume 6, Issue 7, July 2024.
The progress was summarized in the flexible electronics empowered by the two‐dimensional materials, including electronic skins (for sweat and temperature sensors), gas sensors, touch pads, nanogenerators for mechanical energy collection, flexible supercapacitors and batteries, transistors and logic circuits, as well as memristors for neuromorphic ...
Chongyang Hou, Shuye Zhang, Rui Liu, Thomas Gemming, Alicja Bachmatiuk, Hongbin Zhao, Hao Jia, Shirong Huang, Weijia Zhou, Jian‐Bin Xu, Jinbo Pang, Mark H. Rümmeli, Jinshun Bi, Hong Liu, Gianaurelio Cuniberti   +14 more
wiley   +1 more source

Acoustic Design Parameter Change of a Pressurized Combustor Leading to Limit Cycle Oscillations

Energies
When aiming to cut down on the emission of nitric oxides by gas turbine engines, it is advantageous to have them operate at low combustion temperatures. This is achieved by lean premixed combustion.
Mehmet Kapucu, Jim B. W. Kok, Artur K. Pozarlik   +2 more
doaj   +1 more source

Fluidic Ultrasound Generation for Non‐Destructive Testing

Advanced Materials, Volume 36, Issue 18, May 2, 2024.
Air‐coupled ultrasound enables material characterization and fault detection for specimens that are very large or do not allow contact with other materials. This study presents a novel fluidic transducer that can withstand harsh environments and generates a high‐amplitude ultrasonic signal without impedance mismatch to air.
Benjamin Bühling, Stefan Maack, Christoph Strangfeld   +2 more
wiley   +1 more source