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Communication dans un congrès

Near-Field Velocity Measurement of a Multihole GDI Injector

Abstract : This work focuses on the experimental measurements of the spray velocity in the near-nozzle field of a commercial GDI injector at two injection pressures: 5 MPa and 10 MPa. Two regions were investigated by means of backlight imaging technique: the jet periphery (dilute region) within 10 orifice diameter; and dense region within 30 orifice diameter. Two cross-correlation algorithms were used: an in-house algorithm, applied to the dilute region, while a standard PIV algorithm was applied to the dense region. It yields that with a careful setting of the parameters, both algorithms were highly precise: less than 1.2% error in the dilute region and 3% in the dense region. Moreover, the consistency between both methods is proved by comparing measurements in regions where both techniques give suitable results.
Type de document :
Communication dans un congrès
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-03583834
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Soumis le : mardi 22 février 2022 - 09:48:28
Dernière modification le : mercredi 23 février 2022 - 03:34:43

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  • HAL Id : hal-03583834, version 1

Citation

Yujun Cao, J.B. Blaisot, Saïd Idlahcen, Corine Lacour. Near-Field Velocity Measurement of a Multihole GDI Injector. SIA Powertrain, Jun 2017, Versailles, France. ⟨hal-03583834⟩

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