Results 111 to 120 of about 124,231 (205)

On the use of sound absorption to suppress thermoacoustic instabilities under combustion chamber conditions

, 2019
The replacement of the Helmholtz resonators currently used for damping thermoacoustic instabilities in stationary gas turbines by ceramic pore absorbers could improve both the efficiency of combustion and the operating range of the gas turbines.
Ries, Hans-Christoph
core  

Causality and intrinsic thermoacoustic instability modes

, 2014
Direct numerical simulation of a confined laminar premixed flame has been performed in an anechoic combustor, showing self-sustained intrinsic thermoacoustic oscillations. Theoretical predictions based on acoustic jump relations and the n − τ model for the flame are presented and causality concerns are discussed.
Courtine, Emilien, Selle, Laurent, Nicoud, Franck, Polifke, Wolfgang, Silva, Camilo, Bauerheim, Michaël, Poinsot, Thierry   +6 more
openaire   +2 more sources

Universality in spectral condensation. [PDF]

Sci Rep, 2020
Pavithran I, Unni VR, Varghese AJ, Premraj D, Sujith RI, Vijayan C, Saha A, Marwan N, Kurths J.   +8 more
europepmc   +1 more source

Experimental Study of a Standing-Wave Transcritical Thermoacoustic Device

, 2018
A prototype transcritical thermoacoustic engine has been constructed and tested, yielding thermoacoustic results. Three different thermoacoustic “stack” designs have been evaluated in the present study.
Alexander, Dayle
core   +1 more source

Ötz-T: 3D-printed open-source turbidity sensor with Arduino shield for suspended sediment monitoring. [PDF]

HardwareX, 2023
Droujko J, Kunz F, Molnar P.
europepmc   +1 more source

Development and Characterization of Porous Ceramic Absorbers for Damping of Thermoacoustic Instabilities

, 2011
This work presents a new approach for the damping of thermoacoustic instabilities. The use of porous ceramics with high sound absorbent capabilities as lining in combustion chambers was studied in order to suppress self induced combustion instabilities ...
Giese, Frank
core  

Instability and Flame-Pressure Coupling in Downward Propagating Premixed H₂/CO/CO₂/Air Flames. [PDF]

ACS Omega
Yang Z, Zhang Q, Guo Z, Liu Y.
europepmc   +1 more source

The nature of phase and amplitude modulation in heterodyne background-oriented schlieren systems. [PDF]

Exp Fluids
Tasmany S, Kuschmierz R, Woisetschläger J.   +2 more
europepmc   +1 more source

Design and Implementation of Low-Voltage Tunable Capacitive Micro-Machined Transducers (CMUT) for Portable Applications. [PDF]

Micromachines (Basel), 2022
Goel C, Cicek PV, Robichaud A.
europepmc   +1 more source

Nonlinear responses of the premixed V-flame subjected to dual-frequency disturbances. [PDF]

J Fluid Mech
Jiang X, Liu X, Morgans AS, Nan J, Li L, Liu T, Yang L, Li J.   +7 more
europepmc   +1 more source