Numerical and experimental study of abnormal enhancement of separated turbulent flow and heat transfer in inclined oval-trench dimples on the plate and on the narrow channel wallстатья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
Аннотация:The numerically found abnormal enhancement of separated flow and heat transfer ininclined oval-trench dimples (OTDs) on the plate and on the wall of the narrow channel wasexperimentally confirmed at the stands of the Research Institute of Mechanics (LomonosovMoscow State University), the Kazan Scientific Center RAS, and the Kazan State ResearchTechnical University – the Kazan Aviation Institute. The measured static pressure drops in asingle OTD at Re = 6.7 × 10^4 and 16.7 × 10^4, the velocity profiles of accelerating laminar (Re = = 1000) and turbulent (Re = 4300) flows in the narrow channel with two rows of 26 OTDs, theestimate of Nusselt numbers on the channel wall with single-row OTDs are in good agreementwith the numerical predictions within the RANS approach.Accepted papers received: 22 September 2021. Published online: 08 November 2021