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Communication Dans Un Congrès Année : 2010

Spatio-temporal analysis of a liquid jet using a sub-picosecond optical gate

Résumé

A Diesel jet visualization based on an ultra-short light pulse and a time-resolved detection is proposed. An optical gate, consisting of a BBO (Beta Barium Borate) crystal, allows to separate ballistic, refractive and scattered light. An imaging pulse passes through the studied medium while a gating pulse is used to open the gate. With this configuration, a spatial resolution of 10 µm and a temporal resolution of 270 fs are obtained. The gate duration is compatible with the typical dimensions of a liquid jet generated by a commercial automotive fuel injector. Preliminary results show that spatio-temporal diagrams of transmitted light through a spray may be acquired, showing clearly the separation between ballistic, refracted and scattered light.
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Dates et versions

hal-02407468 , version 1 (12-12-2019)

Identifiants

  • HAL Id : hal-02407468 , version 1

Citer

S. Idlahcen, C. Rozé, L. Méès, T. Girasole, J. Blaisot. Spatio-temporal analysis of a liquid jet using a sub-picosecond optical gate. 23rd Annual Conference on Liquid Atomization and Spray Systems, Sep 2010, Brno, Czech Republic. ⟨hal-02407468⟩
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