Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems 2017
DOI: 10.4995/ilass2017.2017.4715
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Modelling and validation of near-field Diesel spray CFD simulations based on the Σ -Y model

Abstract: Diesel spray modelling still remains a challenge, especially in the dense near-nozzle region. This region is difficult to experimentally access and also to model due to the complex and rapid liquid and gas interaction. Modelling approaches based on Lagrangian particle tracking have struggled in this area, while Eulerian modelling has proven particularly useful. An interesting approach is the single-fluid diffuse interface model known as Σ-Y, based on scale separation assumptions at high Reynolds and Weber numb… Show more

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Cited by 3 publications
(4 citation statements)
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References 29 publications
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“…However, a 2 parameter value shows a capital importance for modeling the interfacial surface density. 27,45 As previously mentioned, it is the inverse of the We c for which values between 6 and 15 have been proposed by Chesnel et al 46 from diesel-like spray DNS. 34 Those two values where checked with the present SÀY model in Desantes et al, 45 and both overpredict projected surface area measurements for Spray A condition.…”
Section: Resultsmentioning
confidence: 90%
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“…However, a 2 parameter value shows a capital importance for modeling the interfacial surface density. 27,45 As previously mentioned, it is the inverse of the We c for which values between 6 and 15 have been proposed by Chesnel et al 46 from diesel-like spray DNS. 34 Those two values where checked with the present SÀY model in Desantes et al, 45 and both overpredict projected surface area measurements for Spray A condition.…”
Section: Resultsmentioning
confidence: 90%
“…Regarding a 1 constant, it has been shown in author's previous works 22,27,45 that this turbulent timescale Table 5. Steady-state parameters (mass flow rate, _ m, and momentum, _ M) and non-dimensional flow coefficients (velocity coefficient, C v , area coefficient, C a , and discharge coefficient, factor lies around 1 and has a limited impact on S equation predictions.…”
Section: Resultsmentioning
confidence: 92%
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