FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1844806037> ?p ?o ?g. }

• W1844806037 abstract "In generally accepted and applied flamelet combustion models, a turbulent flame is mainly assumed distorted by the large-scale turbulence eddies, whereas small-scale turbulence effects on the local flamelet structures are neglected. However, in a lot of industrial applications rather high turbulent intensities are often imposed, which induce turbulence scales at ranges smaller than the flame thickness. Flame/turbulence interaction appears quite different at these small scales, which is why improvement of the combustion models is required to account for these phenomena.In this thesis, direct numerical simulations (DNS) and large eddy simulations (LES) have been utilized for studies of lean premixed turbulent reactive flows at various turbulent intensities. DNS has been applied for detailed studies of flame-turbulence interaction to investigate flame structures and detailed chemistry effects at high Karlovitz numbers. Intensified convective-diffusive transport within the fine reaction zone layers is observed which is found to significantly alter the chemical pathway with, e.g., intensified heat release rate at low temperatures. Based on these observations a categorization, supplementary to the conventional one, is proposed, which is able to incorporate detailed chemistry effects into the classification of turbulent premixed flames at high Karlovitz numbers. The effect of differential diffusion was found significant, both globally (in terms of the fuel diffusion effect) and locally (in terms of the radical diffusion effect), also in the distributed reaction zone regime.LES was employed for a low swirl stabilized flame utilizing a flamelet combustion model approach. A dynamic modeling approach to incorporate sensitivity to local variations in the subgrid scale flame wrinkling was implemented and validated. The simulations showed high sensitivity of the prediction of turbulent flame fluctuations as well as ambient air entrainment rate into burned gases to inflow conditions and operating conditions. Lower sensitivity was found to domain size and combustion model. Overall the model results showed good agreement with the velocity and scalar validation data in the thin reaction zone regime. In order to analyze the influence of frequency specific coherent structures on the flame dynamics extended dynamic mode decomposition was performed which was able to delineate the effects of the inner and outer shear layer vorticity on the flame stabilization." @default.
• W1844806037 created "2016-06-24" @default.
• W1844806037 creator A5091864782 @default.
• W1844806037 date "2014-01-01" @default.
• W1844806037 modified "2023-09-25" @default.
• W1844806037 title "Detailed Numerical Simulations of Turbulent Premixed Flames at Moderate and High Karlovitz Numbers" @default.
• W1844806037 cites W1493880006 @default.
• W1844806037 cites W1544323668 @default.
• W1844806037 cites W1559781303 @default.
• W1844806037 cites W1629999805 @default.
• W1844806037 cites W1726436984 @default.
• W1844806037 cites W1857751361 @default.
• W1844806037 cites W1965879162 @default.
• W1844806037 cites W1968512837 @default.
• W1844806037 cites W1969647398 @default.
• W1844806037 cites W1971242811 @default.
• W1844806037 cites W1972297482 @default.
• W1844806037 cites W1976047997 @default.
• W1844806037 cites W1976273354 @default.
• W1844806037 cites W1980016266 @default.
• W1844806037 cites W1984894613 @default.
• W1844806037 cites W1986321432 @default.
• W1844806037 cites W1986385639 @default.
• W1844806037 cites W1989913715 @default.
• W1844806037 cites W1990357918 @default.
• W1844806037 cites W1991509992 @default.
• W1844806037 cites W1992111513 @default.
• W1844806037 cites W1995476266 @default.
• W1844806037 cites W1997543291 @default.
• W1844806037 cites W1999630911 @default.
• W1844806037 cites W2006998382 @default.
• W1844806037 cites W2007058479 @default.
• W1844806037 cites W2008072410 @default.
• W1844806037 cites W2009661015 @default.
• W1844806037 cites W2010237327 @default.
• W1844806037 cites W2014356541 @default.
• W1844806037 cites W2016075402 @default.
• W1844806037 cites W2020497062 @default.
• W1844806037 cites W2022105967 @default.
• W1844806037 cites W2023271292 @default.
• W1844806037 cites W2023313655 @default.
• W1844806037 cites W2031150316 @default.
• W1844806037 cites W2033329519 @default.
• W1844806037 cites W2034087146 @default.
• W1844806037 cites W2035608442 @default.
• W1844806037 cites W2037927265 @default.
• W1844806037 cites W2043190489 @default.
• W1844806037 cites W2043612994 @default.
• W1844806037 cites W2044234032 @default.
• W1844806037 cites W2044389501 @default.
• W1844806037 cites W2049161806 @default.
• W1844806037 cites W2052966538 @default.
• W1844806037 cites W2060452502 @default.
• W1844806037 cites W2061342359 @default.
• W1844806037 cites W2061651249 @default.
• W1844806037 cites W2062735416 @default.
• W1844806037 cites W2064675261 @default.
• W1844806037 cites W2065490661 @default.
• W1844806037 cites W2066030388 @default.
• W1844806037 cites W2074447412 @default.
• W1844806037 cites W2075370803 @default.
• W1844806037 cites W2078075254 @default.
• W1844806037 cites W2079578802 @default.
• W1844806037 cites W2079739796 @default.
• W1844806037 cites W2079968736 @default.
• W1844806037 cites W2082534353 @default.
• W1844806037 cites W2083284582 @default.
• W1844806037 cites W2083820128 @default.
• W1844806037 cites W2084389971 @default.
• W1844806037 cites W2091538362 @default.
• W1844806037 cites W2094847837 @default.
• W1844806037 cites W2104828129 @default.
• W1844806037 cites W2114260566 @default.
• W1844806037 cites W2131070203 @default.
• W1844806037 cites W2131272365 @default.
• W1844806037 cites W2152069856 @default.
• W1844806037 cites W2154776106 @default.
• W1844806037 cites W2164954534 @default.
• W1844806037 cites W2165014946 @default.
• W1844806037 cites W2168795429 @default.
• W1844806037 cites W2244978400 @default.
• W1844806037 cites W2332287499 @default.
• W1844806037 cites W2497583298 @default.
• W1844806037 cites W2980690404 @default.
• W1844806037 cites W2990449391 @default.
• W1844806037 cites W415474714 @default.
• W1844806037 cites W1515236313 @default.
• W1844806037 cites W2028242621 @default.
• W1844806037 hasPublicationYear "2014" @default.
• W1844806037 type Work @default.
• W1844806037 sameAs 1844806037 @default.
• W1844806037 citedByCount "0" @default.
• W1844806037 crossrefType "dissertation" @default.
• W1844806037 hasAuthorship W1844806037A5091864782 @default.
• W1844806037 hasConcept C105923489 @default.
• W1844806037 hasConcept C110808204 @default.
• W1844806037 hasConcept C121332964 @default.
• W1844806037 hasConcept C121448008 @default.
• W1844806037 hasConcept C129474609 @default.
• W1844806037 hasConcept C147789679 @default.

• next