RT Journal Article ID 14bb799b04c1e672 A1 Tanner, Franz X. A1 Feigl, Kathleen A. A1 Ciatti, Steve A.. A1 Powell, Christopher F. A1 Cheong, S.-K. A1 Liu, J. A1 Wang, Jinn-Chyi T1 STRUCTURE OF HIGH-VELOCITY DENSE SPRAYS IN THE NEAR-NOZZLE REGION JF Atomization and Sprays JO AAS YR 2006 FD 2006-05-01 VO 16 IS 5 SP 579 OP 598 AB Optical and X-ray spray measurements may yield different results when similar quantities are measured. Computer simulations were used to reconcile such differences in the near-nozzle region for high-velocity, dense fuel sprays injected into nitrogen at various gas pressures. It was found that the near-nozzle region consists of a dense core around the spray axis, which contains the majority of the liquid mass, and its radial expansion is not very sensitive with respect to changes in the gas pressure. The remaining liquid mass forms a dilute region away from the spray center; it is responsible for the formation of the optical spray angle and hence varies with the gas pressure according to the known experimental correlations. Further, injection pressure variations of sprays into SF6 gas showed that the radial expansion of the dense core and the dilute periphery are independent of the injection pressure. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,4e506d8f44a0bf8c,14bb799b04c1e672.html