6. Physics of a Fluid, Neutral and Ionized Gases

IMPACT OF AIR MICROBLOWING THROUGH A PERMEABLE WALL ON A TURBULENT BOUNDARY LAYER

Vladimir I. Kornilov
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
kornilov@itam.nsc.ru
Andrey V. Boiko
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Tyumen State Oil and Gas University Tyumen, Russian Federation
boiko@itam.nsc.ru
Anatoliy N. Popkov
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
popkov@itam.nsc.ru
The material was received by the Editorial Board: 10.11.2010
The effectiveness of air microblowing through a permeable wall to reduce a turbulent skin friction over a flat plate in an incompressible flow is studied experimentally and theoretically. The mass flow rate of the blowing air per unit area was varied within Q = 0−0.05 (kg/s)/m2. A consistent decrease in local skin friction is observed to occur both at the increasing blowing air mass flow rate and along the permeable sample length. No appreciable influence of nondimensional microhole diameter on skin-friction reduction along the length of permeable sample is observed. The experimental results are compared with data of calculation that carried out within the boundary-layer equations.

Keywords:
microblowing, permeable wall, incompressible turbulent boundary layer, skin friction, flat plate, experiment, calculation. 
УДК 532.526.4 + 532.546.6 + 532.526.72

IMPACT OF AIR MICROBLOWING THROUGH A PERMEABLE WALL ON A TURBULENT BOUNDARY LAYER
References: Kornilov V. I., Boiko A. V., Popkov A. N. IMPACT OF AIR MICROBLOWING THROUGH A PERMEABLE WALL ON A TURBULENT BOUNDARY LAYER. Vestnik NSU. Series: Physics. 2011, vol. 6, no. 1. P. 77–83 (in Russ.). DOI: 10.54362/1818-7919-2011-6-1-77-83