Tp. Kumar et al., Numerical prediction of mixing of four axial rectangular confined jets in the presence of an axial central swirling jet, I J ENG M S, 6(6), 1999, pp. 307-322
Citations number
18
Categorie Soggetti
Engineering Management /General
Journal title
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES
This paper is mainly concerned with mixing of four axial rectangular confin
ed jets with a central jet, so as to find the effect of swirl on the flow d
evelopment. The swirl numbers used are 0, 0.5 and 1.0. The numerical scheme
employed is a finite difference procedure using SIMPLE algorithm. For phys
ical modelling, standard two equation k-epsilon model has been used with mo
difications to take care of stream line curvature due to swirl. The wall ef
fects have been taken into account using wall functions. Velocity field, tu
rbulence kinetic energy and length scale have been predicted. The present s
tudy reveals that the central swirling jet plays an important role in the m
ixing and development of recirculation zone, The findings are useful in the
application of ramjet and gas turbine combustion systems.