Results 41 to 50 of about 2,806 (227)

Weakly nonlinear thermoacoustics for stacks with slowly varying pore cross-sections [PDF]

A general theory of thermoacoustics is derived for arbitrary stack pores. Previous theoretical treatments of porous media are extended by considering arbitrarily shaped pores with the only restriction that the pore cross-sections vary slowly in the ...
Molenaar, J., Panhuis, P.H.M.W., in 't, Rienstra, S.W., Slot, J.J.M.   +3 more
core   +2 more sources

Numerical investigations of flow and energy fields near a thermoacoustic couple [PDF]

, 2002
The flow field and the energy transport near thermoacoustic couples are simulated using a 2D full Navier-Stokes solver. The thermoacoustic couple plate is maintained at a constant temperature; plate lengths, which are short and long compared with the ...
David J. Mee, Haruko Ishikawa, Ishikawa H., Mozurkewich G., Patankar S. V., Wheatley J., Worlikar A. S., Worlikar A. S., Worlikar A. S., Yuan H.   +9 more
core   +1 more source

Lunar ISRU Energy Storage and Electricity Generation [PDF]

, 2020
The survival of the astronauts and their equipment is the priority for any long-term exploration mission to the Moon. The provision of energy during the long lunar nights is a critical part of these missions.
Fereres, Sonia, Fernández Palos, Mario, González Cinca, Ricardo, Serra, Pol, Stephenson, Keith   +4 more
core   +2 more sources

Energizing Change: Liquid‐Metal‐Enabled Nanogenerators for Smart Textiles

Small Structures, Volume 7, Issue 3, March 2026.
This review highlights how liquid metals (LMs) improve energy‐harvesting smart textiles through flexible, conductive, and stable electrodes, enhancing the performance of piezoelectric and triboelectric nanogenerators. It explores LM chemistry, device innovations, textile compatibility, and future challenges, offering a roadmap for practical ...
Kamyar Shirvanimoghaddam, Peng Wu, Ilhan Ozen, Nauman Ali Choudhry, Minoo Naebe   +4 more
wiley   +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

Design and performance evaluation of a cascade thermoacoustic electric generator with side-branched loudspeaker coupling

Results in Engineering
This study presents the design, optimization, and performance evaluation of a novel cascade thermoacoustic electric generator (TAEG) that integrates a commercially available loudspeaker in a side-branched configuration as the acoustic-to-electric ...
Isares Dhuchakallaya, Patcharin Saechan
doaj   +1 more source

Bifurcation Dodge: Avoidance of a Thermoacoustic Instability under Transient Operation

, 2018
Varying one of the governing parameters of a dynamical system may lead to a critical transition, where the new stable state is undesirable. In some cases, there is only a limited range of the bifurcation parameter that corresponds to that unwanted ...
Bonciolini, Giacomo, Noiray, Nicolas
core   +1 more source

Progress in analytical methods to predict and control azimuthal combustion instability modes in annular chambers [PDF]

, 2016
Longitudinal low-frequency thermoacoustic unstable modes in combustion chambers have been intensively studied experimentally, numerically, and theoretically, leading to significant progress in both understanding and controlling these acoustic modes ...
Bauerheim, Michaël, Nicoud, Franck, Poinsot, Thierry   +2 more
core   +3 more sources

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

Empirical Modeling of Subcritical Hopf Bifurcation of Thermoacoustic Stirling Engine

Aerospace
This study models the subcritical Hopf bifurcation in thermoacoustic Stirling engines using the Stuart–Landau model, highlighting the role of nonlinear dynamics. By inducing self-sustained oscillations and measuring pressure fluctuations across different
Chuan-Heng Lai, Shu-Han Hsu
doaj   +1 more source