TY - GEN

T1 - Simulation of properties of flat and ring Couette flow in semicircular channel

AU - Lebiga, V. A.

AU - Pak, A. Yu

AU - Zinovyev, V. N.

AU - Mironov, D. S.

N1 - Publisher Copyright: © 2018 Author(s).

PY - 2018/11/2

Y1 - 2018/11/2

N2 - Used the set-up with a semi-circular gap allows the realization of different types of Couette flow and to change the flow parameters (velocity, pressure, Reynolds and Knudsen numbers, etc.) over a wide range. Reynolds number can be varied by the cylinder rotation speed and pressure inside the facility. Obtaining high Knudsen numbers is possible at low pressures and using light gases, since the system is sealed. The nature of the flow varies from laminar to turbulent ones. Simulation of the properties of the flat Couette flow in the stand should be ensured by minimizing the influence on the flow of centrifugal forces, which are manifested by distortion of the linear velocity profile. Preliminary experiments have shown the possibility of modeling the formation of longitudinal vortices in a semi-circular channel similar to the circular Couette flow.

AB - Used the set-up with a semi-circular gap allows the realization of different types of Couette flow and to change the flow parameters (velocity, pressure, Reynolds and Knudsen numbers, etc.) over a wide range. Reynolds number can be varied by the cylinder rotation speed and pressure inside the facility. Obtaining high Knudsen numbers is possible at low pressures and using light gases, since the system is sealed. The nature of the flow varies from laminar to turbulent ones. Simulation of the properties of the flat Couette flow in the stand should be ensured by minimizing the influence on the flow of centrifugal forces, which are manifested by distortion of the linear velocity profile. Preliminary experiments have shown the possibility of modeling the formation of longitudinal vortices in a semi-circular channel similar to the circular Couette flow.

KW - TRANSITION

UR - http://www.scopus.com/inward/record.url?scp=85056304722&partnerID=8YFLogxK

U2 - 10.1063/1.5065239

DO - 10.1063/1.5065239

M3 - Conference contribution

AN - SCOPUS:85056304722

VL - 2027

T3 - AIP Conference Proceedings

BT - 19th International Conference on the Methods of Aerophysical Research, ICMAR 2018

A2 - Fomin, null

PB - American Institute of Physics Inc.

T2 - 19th International Conference on the Methods of Aerophysical Research, ICMAR 2018

Y2 - 13 August 2018 through 19 August 2018

ER -