Results 91 to 100 of about 3,583 (262)
AerospaceCombustion instability is an abnormal working state that often occurs in advanced solid rocket motors (SRMs), which can arouse pressure oscillations, increase the risk of mission failure, and even cause structural damage.
Fengnan Guo +4 more
doaj +1 more source
FlexMat, EarlyView.Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu +3 more
wiley +1 more source
LES-pdf simulation of combustion dynamics in a partially premixed swirl combustor [PDF]
, 2019 The dynamic behaviour of the partially premixed, swirl-stabilised PRECCINSTA gas turbine model combustor is studied using a fully compressible large eddy simulation solver with a 15-step and 19 species reduced methane mechanism.
Fredrich, Daniel +2 more
core
Active control of combustion instability
, 2022 S.281-289The principle of 'antisound' is used to construct a method for the suppression of combustion instabilities. This active instability control (AIC) method uses external acoustic excitation by a loudspeaker to suppress the oscillations of a flame ...
Poinsot, T., Lang, W., Candel, S.
core
Utilization of Combustion-Driven Oscillations [PDF]
The Journal of the Acoustical Society of America, 1963 The possible applications of combustion-driven oscillations fall into two categories. The first category includes applications that are related to the combustion process itself, such as those concerned with the possibility of alterlog space heat-release rate, combustion efficiency, heat transfer to surfaces, and agglomeration of solid or liquid ...
openaire +1 more source
Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age
Journal of Quaternary Science, EarlyView.ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin +2 more
wiley +1 more source
Study of jet precession, recirculation and vortex breakdown in turbulent swirling jets using LES. [PDF]
, 2009 Large eddy simulations (LES) are used to investigate turbulent isothermal swirling flows with a strong emphasis on vortex breakdown, recirculation and instability behaviour.
Ranga Dinesh, K.K.J. +3 more
core +1 more source
Journal of Raman Spectroscopy, EarlyView.Common‐mode rejection (CMR) is introduced as a physics‐motivated preprocessing method for shifted excitation Raman difference spectroscopy (SERDS) that removes the shared background of paired measurements while preserving the noncommon excitation‐dependent component. Applied to more than 900 North American soil samples, CMR improves soil organic carbon
Mahsa Zarei +4 more
wiley +1 more source
Investigation of the influence of swirl on a confined coannular swirl jet [PDF]
, 2010 Large Eddy Simulations are used to model a turbulent confined coannular combustor and examine the effects of swirl on the flow field and mixing. Three separate simulations with relatively high mesh resolutions and different swirl numbers have been ...
Jenkins, K.W. +5 more
core +1 more source
Polymer Composites, EarlyView.Preparation of lightweight composite panels from multilayer beverage carton waste. ABSTRACT Beverage carton waste, a multi‐layer composite of cardboard, polymer, and aluminum, presents significant recycling challenges for conventional recovery technologies. This work presents a manufacturing process‐oriented method that allows shredded beverage cartons
Csenge Tóth +2 more
wiley +1 more source