20.500.12556/RUL-158316 Simulation of non-Newtonian gas-focused micro-jets in chocked gas flow regime Stable liquid jets are crucial for successful serial crystallography experiments. They are produced from gas dynamic virtual nozzles (GDVNs), where the liquid from an inner capillary is focused by a co-flowing gas from an outer converging capillary. Our previously investigated non-Newtonian jets with incompressible and compressible focusing gas under atmospheric conditions were extended towards compressible chocked gas under vacuum conditions. An axisymmetric GDVN was considered with a fixed gas flow rate of 15 mg/min and liquid flow rate of 40 µl/min. A mixture formulation of the laminar compressible multiphase problem was solved within finite volume method and volume of fluid framework. The jet lengths, diameters, velocities, and temperatures were analysed as a function of the power-law non-Newtonian modification of reference water. It is observed that the jets under vacuum conditions are thinner for Newtonian and shear-thickening fluids than those in the atmosphere. The jet length increases from shear-thinning to shear-thickening rheology but is not affected by the pressure. The shear produced at the nozzle outlet is similar for both pressure conditions but increases in downstream directions for vacuum conditions. Gas expanding into vacuum cools by ~100-150 K while the temperature of the liquid jet drops only by a few K. serial crystallography flow-focusing micro jets fluid rheology non-Newtonian fluid flow focusing serijska femtosekundna kristalografija mikro-curek reologija toka nenewtonska tekočina fokusiranja toka true false true Angleški jezik Slovenski jezik Neznano 2024-06-05 09:18:03 2024-06-05 09:18:06 2025-04-21 11:46:13 0000-00-00 00:00:00 2024 0 0 6 str. Vol. 2766, art. 012069 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532:519.62 1742-6596 10.1088/1742-6596/2766/1/012069 197795843 197654787 Zahoor,_Bajt,_Sarler-Simulation_of_non-Newtonian_gas-focused_micro-jets_in_chocked_gas_flow_regime.pdf Zahoor,_Bajt,_Sarler-Simulation_of_non-Newtonian_gas-focused_micro-jets_in_chocked_gas_flow_regime.pdf 1 E196E2DD57EAB71B96A68FBBD30C19E7 22632653107bdd9ed10ba7288860bc6eeaf43ef0433cd76a648e9b9ed55391a7 2c46f442-230d-11ef-b111-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=185879 https://iopscience.iop.org/article/10.1088/1742-6596/2766/1/012069 1 c20e7a37-230b-11ef-b111-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=185878 Fakulteta za strojništvo 0 0 0