Open AccessDetermination of the heat transfer coefficient during the leakage of a subsonic axisymmetric air mini jet onto a plate
Author(s) -
К. А. Мухин,
В. М. Анискин,
N. A. Maslov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1404/1/012091
Subject(s) - nusselt number , nozzle , reynolds number , jet (fluid) , mechanics , heat transfer coefficient , rotational symmetry , heat transfer , materials science , leakage (economics) , physics , thermodynamics , turbulence , macroeconomics , economics
In the present article, the heat transfer coefficient was determined experimentally when a subsonic jet flows onto a plate. The jet escaped from axisymmetric nozzles with a diameter of d = 290, 540, and 980 μm. The experiments were carried out at the speeds of V = 5, 20, 40, 60, 80 and 100 m/s in the Reynolds numbers range of 100 – 7000. The Nusselt number distribution was obtained for different distances between the nozzle and cooled surface.