APPLICATION OF THE RNG k-ε MODEL TO THE ANALYSIS OF FLOWS AND SPRAY CHARACTERISTICS

Yang, Hei Cheon; Ryou, Hong Sun; Hong, Kun; Kim, H. S.; Park, Sang Kyoo

doi:10.1615/atomizspr.v7.i6.20

Cited by 5 publications

(2 citation statements)

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“…The two most widely used fuel spray atomization models are (1) the Reitz and Diwakar model (R&D), since it can be adapted to low and high injection pressures, [15][16][17][18][19] and (2) the KHRT model, since it has been especially developed for high-pressure diesel-fuel spray and takes into account catastrophic breakup mode. 13,[20][21][22][23][24] In those works, the authors modelled a single injection strategy and the model constants were adjusted to fit experimental results.…”

Section: Introductionmentioning

confidence: 99%

Calibration strategy of diesel-fuel spray atomization models using a design of experiment method

Brulatout

Garnier

Mounaïm‐Rousselle

et al. 2016

International Journal of Engine Research

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The Reitz and Diwakar and the KHRT atomization models are widely used for high-pressure diesel-fuel spray. The constants in both models must be calibrated to correctly predict the injection process based on the nozzle geometry, injection conditions, and fuel. Calibration can be significantly time-consuming given the four constants in both models. This paper suggests a strategy to assess the impact of models' constants on spray tip penetration and mean droplet-diameter predictions on a reference case, with an injection pressure of 700 bar, to characterize the influence of the atomization model's calibration. The assessment used a design of experiment method (DOE), which demonstrated the important interaction between constants on the results. Obtained calibrations were used for comparing the models' performances qualitatively and quantitatively by accounting for spray and air-entrainment characteristics. Both models gave similar results, but the KHRT model yielded a better spray shape. Finally, based on DOE results, a method is proposed to modify the model's constants for higher pressures (900 and 1300 bar).

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Section: Introductionmentioning

confidence: 99%

Calibration strategy of diesel-fuel spray atomization models using a design of experiment method

Brulatout

Garnier

Mounaïm‐Rousselle

et al. 2016

International Journal of Engine Research

View full text Add to dashboard Cite

show abstract

“…For instance in [1], parameters concerned with the proportion of rotation and injection pressures have been calculated. In another study, abnormal injection characteristics and appropriate flow analyses have been studied [2]. While in [3] the authors investigated the exhaust emissions measured using different gas-supply pressures.…”

Section: Introductionmentioning

confidence: 99%