[EN] Gasoline direct injection (GDI) nozzles are manufactured to meet geometric specifications with length scales on
the order of a few hundred microns. The machining tolerances of these nominal dimensions are not always ...
Pandal, A.; Pastor Enguídanos, José Manuel; Payri, Raul; Kastengren, Alan; Duke, Daniel J.; Matusik, Katarzyna E; GIRALDO-VALDERRAMA, JHOAN SEBASTIAN; Powell, Christopher F.; Schmidt, D.(SAE International, 2017)
[EN] The dense spray region in the near-field of diesel fuel injection remains an enigma. This region is difficult to interrogate with light in the visible range and difficult to model due to the rapid interaction between ...
Kastengren, Alan; Ilavsky, J.; Viera-Sotillo, Juan Pablo; Payri, Raul; Duke, Daniel J.; Swantek, A.; Tilocco, F. Zak; Sovis, N.; Powell, Christopher F.(Elsevier, 2017-06)
[EN] Measurements of droplet size in optically-thick, non-evaporating, shear-driven sprays have been made using ultra-small angle x-ray scattering (USAXS). The sprays are produced by orifice-type nozzles coupled to diesel ...
Sechenyh, Vitaliy; Turner, Jack; Sykes, Dan; Duke, Daniel; Swantek, Andrew; Matusik, Katarzyna; Kastengren, Alan; Powell, Christopher; Viera Sotillo, Alberto Antonio; Payri, Raul; Crua, Cyril(Editorial Universitat Politècnica de València, 2017-07-28)
[EN] Post-injection dribble is known to lead to incomplete atomisation and combustion due to the release of slow
moving, and often surface-bound, liquid fuel after the end of the injection event. This can have a negative ...
Manin, Julien; Kastengren, Alan; Payri, Raul(American Society of Mechanical Engineers (ASME), 2012-12)
Measuring the rate of injection of a common-rail injector is one of the first steps for diesel engine development. The injected quantity as a function of time is of prime interest for engine research and modeling activities, ...