Performance of primary holes in presence of dilution and cooling holes in a reverse-flow combustor model
2003; Volume: 10; Issue: 1 Linguagem: Inglês
ISSN
0975-1017
AutoresMadhusuden Agrawal, Sanjeev Bharani,
Tópico(s)Cavitation Phenomena in Pumps
Resumo10~ and decre:l scd th creaftcr with fu rth er increase in Rc. The v:l lu es of dischargc coc lTi cicnt of row of primary hole, when operat ing alone rcmain cd in th e range of 0. 74-0.69 . Thcse magnitudes red uced in th e prcse nce of indi Vi dual ro w ()f di lution (by == 18%) an d cool in g holes (by ==6%) whi Ic th ey improved to th e ex tent of ==0.77 to 0.72 (K= 151 0 tll 1750) when ~ i1lthe four rows operating togeth er. A nnular reve rse flow combustors are widely used t in small gas turbine engin es for th eir inherent advantage l ike minimum shaft whirling, light aro und problems, etc. Des ign of th ese combustors is large ly based on th e empirical correlati ons developed on th e basi s of ex periments 2 . The des ign currently in vogue does not address th e present day des ign requirements o f com bustors. Computational fluid dy namic technique for th e deve lopment of ef ficient combustors is al so hin de red because of th e limited inves ti gati ons 3 t1 re poned in th e literature. Ex tensi ve literature survey reveals that study on th e primary zo ne fl ow in reverse-flow co mbustor des igns is too scant/, while es timati on o f flow-splits i n vari ous liner zones on su ch combustors have been re ported by few researchers 6 10 • Performance of a com
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