Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Jannis Gikadi"'
Publikováno v:
Journal of Sound and Vibration. 333:6548-6559
A powerful model to predict aeroacoustic interactions in the linear regime is the perturbed compressible linearized Navier–Stokes equations. Thus far, the frequently employed derivation suggests that the effect of turbulence and its associated Reyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e00ad24a1a77f9df506c38bfe51d7f1
https://doi.org/10.1016/j.jsv.2014.06.033
https://doi.org/10.1016/j.jsv.2014.06.033
Publikováno v:
Scopus-Elsevier
Combustion noise of stationary gas turbines or aero engines is associated with unsteady heat release that creates temperature fluctuations or so-called entropy waves (hot-spots). When accelerated in the turbine located downstream of the combustor, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0be30c9392e86d6062642ef26c00b09
https://doi.org/10.2514/6.2014-3193
https://doi.org/10.2514/6.2014-3193
Publikováno v:
Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations.
When modeling gas turbine sound emissions an important boundary condition is the acoustic reflection coefficient at the engine exhaust. Here, the flow discharges into atmosphere at elevated temperature and high flow velocity. The exit reflection coef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af5e95c6991b4586e1a92d58427c3ad5
https://doi.org/10.1115/gt2013-94843
https://doi.org/10.1115/gt2013-94843
Publikováno v:
Volume 2: Combustion, Fuels and Emissions, Parts A and B.
This paper presents a finite element methodology to predict the thermoacoustic eigenmodes of combustion chambers using the linearized Navier-Stokes equations (LNSE) in frequency space. The effect of the mean flow on the acoustics is accounted for. Be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d25df50a2e5c02290d1626fca6db1d
https://doi.org/10.1115/gt2012-69612
https://doi.org/10.1115/gt2012-69612
Publikováno v:
Scopus-Elsevier
In this paper, we investigate the scattering behaviour of plane acoustic waves at an area expansion. Therein, the mean flow separates at the trailing edge and expands into a jet in the downstream duct. This configuration supports complex interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::458980129397758b02bb5c5e9d8a5134
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880612657&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880612657&partnerID=MN8TOARS
