Results 61 to 70 of about 124,231 (205)

Experimental and 2D CFD study of thermoacoustic instabilities

Journal of Thermal Engineering
Thermoacoustic instability, caused by the interaction of unsteady heat release and acoustic waves, is a significant challenge in combustion systems such as gas turbines and aero engines.
Suchita K. Kadam, Nilaj N. Deshmukh
doaj   +1 more source

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

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

Experimental Investigation of a Modular Thermoacoustic Engine

, 2021
A modular thermoacoustic engine (TAE) has been designed and fabricated providing a reliable bench test to study thermoacoustic instabilities. Thermoacoustic engines belong to a class of heat engines that produce acoustic power as a result of a fluid ...
Karl M Jantze (6639953)
core   +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

Data‐Driven Mapping and Classification of Combustion Regimes in a Stainless Steel–Platinum Segmented Microreactor Using a CNN–XGBoost Hybrid Framework

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
In previous studies, flames could be stably maintained within the designed platinum–stainless steel segmented microreactor. However, difficulties remained in identifying combustion modes. Therefore, this study proposes a method that combines convolutional neural network (CNN) with the XGBoost model to classify and predict different combustion modes. In
Ray-Bing Chen, Cheng-Han Lin, Yan-Ru Wang, Hsin-Cheng Lai, Yueh-Heng Li   +4 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

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

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

Experimental Study of the Transient Behavior of Thermoacoustic Combustion Oscillations Using the Kurtosis Analysis of Dynamic Pressure

Shock and Vibration, Volume 2026, Issue 1, 2026.
Combustion oscillations can cause severe damage to combustion systems and compromise the reliability of energy conversion devices. To achieve early identification of the transition toward combustion instability, this study proposes an adaptive kurtosis‐based detection method using dynamic pressure signals.
Yao Li, Chao Qian, Junbo Hu, Zhong Luo, Qingwen Zeng, Smritijit Sen   +5 more
wiley   +1 more source