RT Journal Article
ID 6b8140c77e4238f2
A1 Terekhov, Viktor I.
A1 Yarygina, Nadezhda I.
A1 D'yachenko, A. Yu.
T1 Heat Transfer in a Transverse Extended Cavity with Inclined Walls in a Turbulized Flow
JF Heat Transfer Research
JO HTR
YR 2006
FD 2006-09-27
VO 37
IS 5
SP 383
OP 394
AB Experimental investigations of the influence of an external degree of turbulence on heat transfer intensification in a cavity with a small aspect ratio, with the angles of inclination of the lateral walls being varied from 30° to 90°, were carried out. It is shown that in a rectangular cavity the average heat-transfer rate over the surface at a turbulence level Tu0 of 6.5% increases by a factor of 1.2, whereas at Tu0 = 16% − by a factor of 1.4. The visualization of the patterns of vortex formation has shown that at angles φ = 60° or 70° the flow becomes extremely unstable, depending on the Reynolds number. For these angles one observes a marked enhancement of heat transfer which is strengthened at a high flow turbulence.
PB Begell House
LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,70b11ebe3196a1e6,6b8140c77e4238f2.html