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Advances in Time-gated Ballistic Imaging for Studies of Atomizing Fuel Sprays

Mattias Rahm (Institutionen för tillämpad mekanik, Förbränning)
Göteborg : Chalmers University of Technology, 2015. - 91 s.

The transportation sector of today relies heavily on fossil fuels. This is undesirable both due to the finite nature of the fossil resources and to the effects of global warming. Therefore, there is a need to find alternative fuels and simultaneously develop combustion engines with higher efficiencies. This thesis describes the further development and application of ballistic imaging. Ballistic imaging is a laser based diagnostic technique designed to obtain information about the primary breakup of fuel sprays. It makes use of femtosecond laser pulses and very fast nonlinear optical devices to suppress noise generated by droplet scattering in shadowgraphy-styled images. This allows the interior if the primary breakup region to be imaged. With a better understanding of the dynamics involved when the contiguous liquid is dispersed into a spray, engines with higher efficiencies and lower engine-out emissions can be more rapidly designed.

Nyckelord: Fuel sprays, Ultrafast lasers, OKE-effect, Ballistic imaging, Atomizing sprays

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Denna post skapades 2015-01-07. Senast ändrad 2015-01-08.
CPL Pubid: 209833


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Förbränning (2007-2017)


Hållbar utveckling

Chalmers infrastruktur

Relaterade publikationer

Inkluderade delarbeten:

Optical Arrangements for Time-Gated Ballistic Imaging

Evidence for Supercritical Regions of the ECN Spray A


Datum: 2015-02-04
Tid: 13:00
Lokal: Gamma/Delta, Hörsalsvägen 7, Göteborg

Ingår i serie

Technical report - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden