2007
DOI: 10.1016/j.atmosenv.2007.06.054
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Turbulent Schmidt numbers for CFD analysis with various types of flowfield

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Cited by 406 publications
(195 citation statements)
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“…The relation involves a dimensionless parameter known as the turbulent Schmidt number (Sc t = ν t /D t ). Variations in the value of Sc t are known to have a large influence on the concentration field (Tominaga and Stathopoulos, 2007;Blocken et al, 2008). In this study, three values of Sc t are used: 0.3, 0.5 and 0.7, which are in the range of those used in previous studies (e.g.…”
Section: The Rans Standard K-ε Modelmentioning
confidence: 99%
“…The relation involves a dimensionless parameter known as the turbulent Schmidt number (Sc t = ν t /D t ). Variations in the value of Sc t are known to have a large influence on the concentration field (Tominaga and Stathopoulos, 2007;Blocken et al, 2008). In this study, three values of Sc t are used: 0.3, 0.5 and 0.7, which are in the range of those used in previous studies (e.g.…”
Section: The Rans Standard K-ε Modelmentioning
confidence: 99%
“…It is noted that this is consistent with results for methane . This may be somewhat surprising given the significant difference between the laminar Sc values for hydrogen and methane which are 0.2 and 0.99, respectively (Tominaga and Stathopoulos, 2007) Further assessment of the simulations is provided in Fig. 11 which shows how the turbulence model and value of S ct impact the results for radial and axial injection separately.…”
Section: Axial Injectionmentioning
confidence: 99%
“…In addition, four different turbulent Schmidt (S ct ) numbers are used in numerical modeling to test the sensitivity of numerical results to different S ct as an important parameter in mixing for turbulence models (Yeung et al, 2002;Tominaga and Stathopoulos, 2007). A list of the numerical models discussed in this paper is provided in Table 2.…”
Section: Numerical Approachmentioning
confidence: 99%
“…For turbulent flows, the mass diffusion is influenced mostly by the turbulent transport. This is determined by the turbulent Schmidt number, and measures the ratio of momentum and mass diffusivity (Goldberg, Palaniswamy, Batten, & Gupta, 2010;Reynolds, 1975;Tominaga & Stathopoulos, 2007;Yeung, Xu, & Sreenivasan, 2002). The turbulent Schmidt number is relatively insensitive to the molecular fluid properties, thus there is little reason to alter the default value of Sc t = 0.7 for any species (ANSYS R Fluent R , 2012).…”
Section: Species Transportmentioning
confidence: 99%