Results 31 to 40 of about 2,865 (193)
Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]
, 2014 This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Bloxsidge +48 more
core +5 more sources
Aerospace, 2021 In the present work, 3D Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulations are performed to investigate the generation and mitigation mechanism of combustion-sustained thermoacoustic instabilities in a modelled swirl combustor.
Yuze Sun, Dan Zhao, Xiaowei Zhu
doaj +1 more source
Transmission eigenvalues and thermoacoustic tomography [PDF]
, 2013 The spectrum of the interior transmission problem is related to the unique determination of the acoustic properties of a body in thermoacoustic imaging. Under a non-trapping hypothesis, we show that sparsity of the interior transmission spectrum implies ...
Finch, David, Hickmann, Kyle S.
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IEEE Access, 2023 This paper proposes an adaptive scheme for the boundary stabilization of thermoacoustic instability in the Rijke tube system using the backstepping method. The mathematical model of the system is characterized by a $2\times 2$ linear hyperbolic partial
Elham Aarabi +2 more
doaj +1 more source
Photoacoustic Tomography in a Rectangular Reflecting Cavity [PDF]
, 2013 Almost all known image reconstruction algorithms for photoacoustic and thermoacoustic tomography assume that the acoustic waves leave the region of interest after a finite time.
Cox, B. T., Holman, B., Kunyansky, L.
core +2 more sources
Energy Applications of Magnetocaloric Materials
Advanced Energy Materials, Volume 10, Issue 10, March 10, 2020., 2020 The quest for energy‐efficient and environmentally friendly energy conversion technologies is more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives to existing technologies. This article gives an overview of energy applications of magnetocaloric materials.
Andrej Kitanovski
wiley +1 more source
Energy and AI, 2021 The intermittent nature of operation and unpredictable availability of renewable sources of energy (e.g., wind and solar) would require the combustors in fossil-fuel power plants, sharing the same grid, to operate with large turn-down ratios. This brings
Sudeepta Mondal +3 more
doaj +1 more source
Experimental and theoretical investigation of the flashback of a swirling, bluff-body stabilised, premixed flame [PDF]
, 2015 Flashback of an open turbulent, premixed flame in a swirl burner with central bluff-body is considered. The aim is to obtain further understanding of the physical mechanisms responsible for the upstream flame propagation.
Christodoulou, Loizos +3 more
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Numerical Investigation of the Wake Vortex‐Related Flow Mechanisms in Transonic Turbines
International Journal of Aerospace Engineering, Volume 2020, Issue 1, 2020., 2020 As the core equipment of the power generation system, a gas turbine is an indispensable energy‐converting device in the national industry. The flow inside a high‐pressure turbine (HPT) is highly unsteady, which has a great influence on the aerothermal performance and structural strength.
Guoliang Wang +3 more
wiley +1 more source
The physics and regularities of the neutron-thermoacoustic instability
Ядерна фізика та енергетика, 2018 The physics and regularities of the neutron-thermoacoustic instability (NTAI) in nuclear channels with subcooled nucleate boiling flows are explained. The method for obtaining the characteristic equation of NTAI in a VVER-type reactor is given.
S. N. Pelykh +2 more
doaj +1 more source