PANS method of turbulence: simulation of high and low Reynolds number flows past a circular cylinder

Show simple item record


dc.contributor.advisor Girimaji , Sharath S . en_US
dc.contributor.committeeMember Cizmas , Paul en_US
dc.creator Lakshmipathy , Sunil en_US
dc.date.accessioned 2006 -04 -12T16 :06 :52Z
dc.date.accessioned 2014 -02 -19T19 :25 :12Z
dc.date.available 2006 -04 -12T16 :06 :52Z
dc.date.available 2014 -02 -19T19 :25 :12Z
dc.date.created 2004 -12 en_US
dc.date.issued 2006 -04 -12T16 :06 :52Z
dc.identifier.uri http : / /hdl .handle .net /1969 .1 /3338
dc.description.abstract The objective of the study is to investigate the capability of PANS (Partially Averaged Navier -Stokes Simulation ) model over a wide range of Reynolds numbers and flow physics . In this regard , numerical simulations of turbulent flow past a circular cylinder are performed at ReD 140 ,000 and ReD 3900 using the PANS model . The high Reynolds number PANS results are compared with experimental results from Cantwell and Coles , Large Eddy Simulation results from Breuer , and Detached Eddy Simulation results from Travin et al . Low Reynolds number PANS results are compared with experimental results from Ong and Wallace and Large Eddy Simulation results from Breuer . The effects of the various PANS parameters (fk , f & #949 ; , & #963 ;ku , & #963 ; & #949 ;u ) on the ability to capture turbulence physics at various Reynolds numbers are studied . It is confirmed , as previously predicted from theoretical considerations that : (i ) for high Reynolds number flow f & #949 ; = 1 and & #963 ;ku = & #963 ;k ? ? fk2 / f & #949 ; are most appropriate ; and (ii ) for low Reynolds number flow f & #949 ; = fk and & #963 ;ku = & #963 ;k are most suitable . These choices for the parameters stem from the fact that there is no clear separation of scales between the energy scales and the dissipation scales at low Reynolds number unlike in the high Reynolds number where there is a clear separation of scales between the energy containing scales and the dissipation scales . Also , in both cases it is found that decreasing fk leads to improved accuracy in predicting the flow statistics . en_US
dc.format.extent 1989714 bytes
dc.format.medium electronic en_US
dc.format.mimetype application /pdf
dc.language.iso en _US en_US
dc.publisher Texas A &M University en_US
dc.subject Partially Averaged Navier -Stokes Simulation en_US
dc.title PANS method of turbulence : simulation of high and low Reynolds number flows past a circular cylinder en_US
dc.type Book en
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

Citation

PANS method of turbulence: simulation of high and low Reynolds number flows past a circular cylinder. Available electronically from http : / /hdl .handle .net /1969 .1 /3338 .

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse