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Large Eddy Simulations of Flow Around Two Generic Vehicles in a Platoon

Maryam Mirzaei (Institutionen för tillämpad mekanik, Strömningslära) ; Sinisa Krajnovic (Institutionen för tillämpad mekanik, Strömningslära)
Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows Vol. 185 (2016), p. 283-288.
[Konferensbidrag, refereegranskat]

A detailed analysis of the effect of inter-vehicle distance on the flow structure of a two-model platoon is presented. Simulations are made for two Ahmed bodies with a slant angle of 25 degrees and for three inter-vehicle distances, d/L = 0.3, 0.5 and 1. The Reynolds number based on the body height was 30000. A drag increase was observed for the follower with d/L = 0.5, compared to the drag value of a single body in isolation. To explain the underlying reasons for the increase in drag, various instantaneous and time-averaged plots are presented and compared for different distances, and a significant change in flow structure was found in flows between the set-ups with d/L = 0.5 and d/L = 1.



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Denna post skapades 2016-12-09.
CPL Pubid: 246037

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Transport
Strömningsmekanik

Chalmers infrastruktur