Estimation of turbulent energy dissipation in the boundary layer using Smoke Image Velocimetry

Михеев, Н. И.; Goltsman, A. E.; Saushin, I. I.; Душина, О. А.

doi:10.1007/s00348-017-2379-x

Cited by 36 publications

(1 citation statement)

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“…Two OT arrangements are considered: when the dimples are turned to the side walls (in this case, the inlet parts of the dimples are near the plane of symmetry) at an angle of ±45° to the plane of symmetry of the channel and at an angle of ±135° to the plane of symmetry and the turn of the dimples from the side walls (in this case, the inlet parts of the dimples are located near the walls). An electronic database of measurements of the longitudinal velocity component is compiled using the SIV method [16].…”

Section: Resultsmentioning

confidence: 99%

Vortex heat transfer enhancement on energy-efficient surfaces structured by inclined trench dimples

Исаев

Михеев

Dushin

et al. 2021

J. Phys.: Conf. Ser.

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Experimental measurements and numerical predictions of the longitudinal component of the air velocity in a narrow channel with two rows of 26 densely packed oval trenches at angles of ±45° and ±135° in laminar (Re=103) and turbulent (Re=4×103) regimes have been compared. The acceptability of the RANS approach using the modified SST turbulence model within the Rodi–Leschziner–Isaev approach has been substantiated. The flow acceleration in the dimpled channel up to the longitudinal velocity maxima of 1.85 and 1.55 of the average bulk velocity for laminar and turbulent air flows has been experimentally confirmed.

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Section: Resultsmentioning

confidence: 99%