Effects of Reynolds Number on Twin Circular Jets at a Small Space Ratio

Shams Sourav, Ashraful Hossain Rifat and M A Taher Ali
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Shams Sourav: Department of Aeronautical Engineering, Military Institute of Science and Technology, Dhaka-1216, Bangladesh
Ashraful Hossain Rifat: Department of Aeronautical Engineering, Military Institute of Science and Technology, Dhaka-1216, Bangladesh
M A Taher Ali: Department of Aeronautical Engineering, Military Institute of Science and Technology, Dhaka-1216, Bangladesh

International Journal of Research and Scientific Innovation, 2020, vol. 7, issue 8, 248-252

Abstract: A twin circular jet of diameter 20 mm is investigated experimentally for a small space ratio of 1.2 and how Reynolds number affects the flow field is analyzed for three different Reynolds number (Re = 16300, 34400 and 49200). The experiment is carried out in an air jet facility and pressure probe method is used to measure and calculate the position dependent data. Mean velocity profiles along the longitudinal, transverse and lateral directions are studied where an impact of varying Re is evident. Static pressure and mean kinetic energy distributions are also investigated where an enormous influence of Re is found. With the increase of Re, interaction of two jets is enhanced and ample amount of energy and mass transfer occur between the shear layers of the twin jets.

Date: 2020
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