TY  - JOUR
T1  - Variable Density Approach for Modeling of Transcritical and Supercritical Jets
AU - Antunes, Eduardo AU - Silva, Andre AU - Barata, Jorge 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 20
SP  - 5147
EP  - 5159
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.5147.5159
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.5147.5159
KW  - Critical point
KW  -cryogenic jets
KW  -fuel injection
KW  -rocket engines
KW  -supercritical flows
KW  -simulation
AB  - In order to study the high pressure and high temperature operating condition of a variety of internal
combustion engines such as modern diesel engines, gas turbines and liquid fuel rocket engines, a cryogenic
nitrogen jet injected into supercritical chamber conditions was simulated numerically. The favre averaged
navier-stokes equations were employed together with a “k-ε” Turbulence Model and using instead of an ideal
gas equation of state, the Amagat’s law in an approach originally conceived for gaseous turbulent jets with
variable density. The present study describes the assessment of the capabilities of the approach by comparison
against experimental data as well as numerical simulation performed by other researcher. The obtained results
show an acceptable agreement with experiments for the axial density distribution, failing slightly in the
prediction of the jet potential core. Good agreement is observed for radial density distribution as well as for the
jet spreading rate.
ER  -