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Viktor Mileikovskyi
The macrostructure analysis of the turbulent mixing boundary layer between flows with the same or opposite direction
| Conference Information: |
9th International Conference on Environmental
Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |
| Source: |
ICEE-2011 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
ISSN 2029-7092 online |
| ISBN: |
978-609-457-640-9 / 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
The approach to calculate large-scale vortexes boundary layer using approach of Professor A. Tkachuk is offered. It based on geometrical
analysis of idealized macrostructure shown as a growing or constant radius vortex sheet. The small vortices in flows with a large-scale
macrostructure plays secondary roles because they have incommensurably less energy than big vortices. They can be eliminated from
consideration. We specify the velocity and temperature profile that differs from the jet boundary layer profile and better coincides with
experiment. We find a growth law for a free boundary layer and length of currents cores. This approach help us to solve the actual task for
energy efficient heating systems. We found the heat exchange coefficient between flows. It allows simulating the back flow effect in onepipe
radiator nodes. The results of calculations coincides with well-known literature data.
Keywords: turbulent boundary layer; vortex; current; jet; one-pipe heating.
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