Zobrazeno 1 - 10
of 496
pro vyhledávání: '"Markus Klein"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Using direct numerical simulation, the primary atomization of shear-thinning liquid jets into stagnant gas is investigated. Starting from a Newtonian configuration with material properties approximately corresponding to a Diesel injection, t
Externí odkaz:
https://doaj.org/article/245079fffc654aa9b8f586acbc0e4e21
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The combustion of hydrogen and carbon-monoxide mixtures, so-called syngas, plays an increasingly important role in the safety context of non-fossil energy generation, more specifically in the risk management of incidents in process engineeri
Externí odkaz:
https://doaj.org/article/5104fdf0c7b645cf8f57748913b3b447
Publikováno v:
Energies, Vol 17, Iss 18, p 4632 (2024)
In this study, a series of carrier-phase direct numerical simulations are conducted on spherical expanding premixed hydrogen/air flames with liquid water addition. An Eulerian–Lagrangian approach with two-way coupling is employed to describe the li
Externí odkaz:
https://doaj.org/article/8818128814fe4071b3a1185ba347fd44
Strategies for Enhancing One-Equation Turbulence Model Predictions Using Gene-Expression Programming
Publikováno v:
Fluids, Vol 9, Iss 8, p 191 (2024)
This paper introduces innovative approaches to enhance and develop one-equation RANS models using gene-expression programming. Two distinct strategies are explored: overcoming the limitations of the Boussinesq hypothesis and formulating a novel one-e
Externí odkaz:
https://doaj.org/article/24391eea9d494c3780d7dcd0f9f0e466
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract A new benchmark case for the evaluation of direct numerical simulation (DNS) and large-eddy simulation (LES) models and methods is presented in this study. The known Taylor–Green vortex is modified by replacing the periodic boundary condit
Externí odkaz:
https://doaj.org/article/f1cd608cddca4715b7b8e552df9b5827
School Attendance Problems in Scotland and Spain: Variations in Recording, Reporting, and Using Data
Publikováno v:
Orbis Scholae, Vol 16, Iss 3, Pp 157-172 (2023)
School attendance problems (SAPs) are a worldwide concern due to their significant impact on students’ development. SAPs may vary across countries depending on the effectiveness of policy measures for prevention and care, the functioning of the edu
Externí odkaz:
https://doaj.org/article/e8f1c12a11664fa4a7a37b653348d7e7
Publikováno v:
PLoS ONE, Vol 19, Iss 8, p e0306716 (2024)
Prior research has identified that school absences harm children's academic achievement. However, this literature is focused on brief periods or single school years and does not consistently account for the dynamic nature of absences across multiple
Externí odkaz:
https://doaj.org/article/830d1328546d40f49b59d5775a95e7a4
Publikováno v:
Frontiers in Psychology, Vol 14 (2023)
In cognitive–motor dual-task situations, the extent of performance decrements is influenced by the attentional requirements of each task. Well-learned motor skills should be automatized, leading to less interference. This study presents two studies
Externí odkaz:
https://doaj.org/article/b381e43b9f0249f78c42acf7915285e2
Publikováno v:
Socius, Vol 9 (2023)
This article investigates whether gender differences in children’s math, reading, and behavior problems vary across mothers’ education and family structure. Using data from the National Longitudinal Study of Youth-Children and Young Adults (N > 6
Externí odkaz:
https://doaj.org/article/2fda3bed0dde430182df28c0219fca42
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The reactive Richtmyer–Meshkov instability (RMI) exhibits strong wrinkling of a reactive flame front after an interaction with a shock wave. High levels of deformation and wrinkling can cause the flame surface to intersect with itself, lea
Externí odkaz:
https://doaj.org/article/e86229ad10a74559b7394706cba51e27