Viljam Grahn on Muck Rack

Viljam Grahn

As seen in: Optica
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Articles

Time-resolved ballistic imaging of a transient diesel spray

|
By David Sedarsky, Jari Hyvönen, Viljam Grahn, Lokesh Mopuri
| Optica
Pilot injections play a crucial role in enhancing thermal efficiency and reducing ${{\rm NO}_x}$ emissions in large-scale dual-fuel (DF) combustion engines. These injection strategies are characterized by extremely short dwell times and compact spray events, which are highly sensitive to the transient dynamics of the injector. The near-nozzle region is particularly important, as it governs spray initiation, primary breakup, and fuel–air mixing.
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