Results 41 to 50 of about 255 (174)

Responsive liquid metal materials towards unstructured environment

Responsive Materials, Volume 4, Issue 1, February 2026.
Room‐temperature liquid metals integrate conductivity, deformability, and interfacial dynamics, enabling robust performance in unstructured environments. This review highlights key properties, requirements, and applications across in vivo, underwater, natural, space, and radiation settings, with advances in sensing, actuation, thermal regulation, and ...
Bo Yuan, Huaitong Song, Kaiyuan Xiang, Shili Tang, Cailin Liu, Hongzhang Wang   +5 more
wiley   +1 more source

Investigation on the stability of the Rijke-type thermoacoustic system with an axially distributed heat source

Journal of Low Frequency Noise, Vibration and Active Control
Due to the incurred damages to the combustors, large-amplitude self-sustained thermoacoustic oscillations are unwanted in many propulsion systems, such as liquid/solid rocket motors and aero-engines.
Kai Pang, Yuanhao Wang, Xinyan Li, Hongquan Sun, Chenzhen Ji   +4 more
doaj   +1 more source

Experimental Investigation of Stochastically Forced Rijke-Type Supercritical Thermoacoustic Systems

Energies, 2023
Intense thermoacoustic oscillations may lead to severe deterioration due to the induced intolerable damage to combustors. A better understanding of unstable behaviors is important to prevent or suppress these oscillations.
Hao Zhang, Yuanhao Wang, Xinyan Li, Geng Chen, Yuze Sun   +4 more
doaj   +1 more source

Automatic Adaptive and Targeted Localized Refinement in Transient Structural Dynamic Simulations Using the Multiresolution Finite Wavelet Domain Method

International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT The multiresolution finite wavelet domain method has been meticulously studied in numerous wave propagation simulations, showing excellent convergence properties and very fast computing times. The multiresolution procedure always starts with the coarse solution, and then finer solutions can be superimposed on the coarse solution until ...
Dimitris Dimitriou, Katerina Samara, Dimitris Saravanos   +2 more
wiley   +1 more source

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

Three-Dimensional Numerical Analysis of Longitudinal Thermoacoustic Instability in a Single-Element Rocket Combustor

Frontiers in Energy Research, 2022
This study numerically investigated the thermoacoustic combustion instability characteristics of a scaled rocket combustor based on a hybrid of the Reynolds-averaged Navier–Stokes and large–eddy simulation method.
Guo Kangkang, Xu Boqi, Ren Yongjie, Tong Yiheng, Nie Wansheng   +4 more
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

A Review on Combustion Instability of Hydrogen-Enriched Marine Gas Turbines

Journal of Marine Science and Engineering
Hydrogen is widely regarded as a promising carbon-free alternative fuel. However, the development of low-emission marine gas turbine combustion systems has been hindered by the associated risks of combustion instability, also termed as thermoacoustic ...
Jiaying Cheng, Bin Hu, Zhilin Zeng, Jinhai Fu, Boyang Zhang   +4 more
doaj   +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

Simultaneous 10 kHz PIV/OH-PLIF/chemiluminescence and conjoint data analysis approach for thermoacoustic oscillation near lean blowout

Applications in Energy and Combustion Science
Simultaneous multi-parameter experimental data characterizing the flow-combustion interaction process are of great significance for understanding the flame instability mechanism in combustion systems.
Zhen Cao, Wenbei Liu, Xin Yu, Bin Hu, Jiangbo Peng, PengHua Qiu, Chaobo Yang   +6 more
doaj   +1 more source