Results 101 to 110 of about 787,947 (227)

Thermoacoustic Interpretation of Second-Mode Instability

AIAA Journal, 2018
A thermoacoustic interpretation of Mack’s second-mode instability is proposed. It is demonstrated that the fundamental mechanism of second-mode wave growth in hypersonic boundary layers is consiste...
openaire   +1 more source

Azimuthally-driven subharmonic thermoacoustic instabilities in a swirl-stabilised combustor

Proceedings of the Combustion Institute, 2019
A joint experimental and computational study of thermoacoustic instabilities in a model swirl-stabilised combustor is presented. This paper aims to deliver a better characterisation of such instabilities through the examination of measurements in ...
D. Noh, E. Karlis, S. Navarro-Martinez, Y. Hardalupas, A. Taylor, D. Fredrich, W. P. Jones   +6 more
semanticscholar   +1 more source

Preventing a global transition to thermoacoustic instability by targeting local dynamics. [PDF]

Sci Rep, 2022
George NB, Raghunathan M, Unni VR, Sujith RI, Kurths J, Surovyatkina E.   +5 more
europepmc   +1 more source

An experimental study of coupling between combustor pressure, fuel/air mixing, and the flame [PDF]

, 2005
Fuel-air mixing behavior under the influence of imposed acoustic oscillations has been studied by investigating the response of the fuel mixture fraction field.
Culick, F. E. C., Kang, Dal Mo, Ratner, Abert   +2 more
core  

Benchmarking machine learning models against full-scale acoustic absorption measurements in gas turbine liners

Fuel Communications
Accurate prediction of acoustic energy absorption in gas turbine combustors is critical for enhancing performance, mitigating thermoacoustic instabilities, and reducing emissions.
Abdullah Shahjalal, Roy Kalawsky, Demetrios Joannou, Faruk Ozdemir   +3 more
doaj   +1 more source

Steady-state statistics, emergent patterns and intermittent energy transfer in a ring of oscillators. [PDF]

Nonlinear Dyn, 2022
Pedergnana T, Noiray N.
europepmc   +1 more source

The effect of hydrogen enrichment on thermoacoustic instabilities in laminar conical premixed methane/air flames

International journal of hydrogen energy, 2023
A. Giannotta, S. Cherubini, P. De Palma
semanticscholar   +1 more source

Photofluid Instabilities of Hot Stellar Envelopes

, 1998
Beginning from a relatively simple set of dynamical equations for a fluid permeated by a radiative field strong enough to produce significant forces, we find the structure of plane-parallel equilibria and study their stability to small acoustic ...
Arons, Asplund, Davidson, Edward A Spiegel, Hsieh, Louis Tao, Poyet, Prendergast, Simon, Underhill, Unno   +10 more
core   +2 more sources

Modeling and control of thermoacoustic instabilities

, 2003
This work deals with modeling and control of thermoacoustic combustion instabilities in lean premixed combustion systems. Because of the complex interactions present in thermoacoustic systems, a network modeling approach is used. The model of each network element or subsystem is obtained analytically, numerically, or by making use of experimental ...
openaire   +1 more source

Fluid physics, thermodynamics, and heat transfer experiments in space [PDF]

An overstudy committee was formed to study and recommend fundamental experiments in fluid physics, thermodynamics, and heat transfer for experimentation in orbit, using the space shuttle system and a space laboratory.
Abramson, H. N., Angrist, S. W., Catton, I., Churchill, S. W., Dodge, F. T., Mannheimer, R. J., Otrach, S., Schwartz, S. H., Sengers, J. V.   +8 more
core   +1 more source