Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Gasdynamic structure of underexpanded planar microjets ejected into still air. / Aniskin, V. M.; Korotaeva, T. A.; Maslov, N. A. et al.
19th International Conference on the Methods of Aerophysical Research, ICMAR 2018. ed. / Fomin. Vol. 2027 American Institute of Physics Inc., 2018. 030091 (AIP Conference Proceedings; Vol. 2027).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Gasdynamic structure of underexpanded planar microjets ejected into still air
AU - Aniskin, V. M.
AU - Korotaeva, T. A.
AU - Maslov, N. A.
AU - Obodovskaya, E. A.
AU - Turchinovich, A. O.
AU - Tsibulskaya, E. O.
AU - Tsyryulnikov, I. S.
N1 - Publisher Copyright: © 2018 Author(s).
PY - 2018/11/2
Y1 - 2018/11/2
N2 - Recently, interest in micro-jet research has increased that is related to the potential use of micro-jets in various applications of aerospace and chemical industries. Non-axisymmetric nozzles, in particular rectangular ones, are often used due to design considerations. The purpose of this work is numerical and experimental study of the ejection of underexpanded micro jets from a slotted nozzle into still air in wide range of jet pressure ratio, height of the rectangular nozzle, and height-to-width ratio. The jets have sonic velocity at the nozzle exit. The paper presents the results of experiments on visualization of the gas micro-jets outflow using a shadowgraph method, as well as longitudinal and transverse pressure distribution measured by Pitot tubes. Numerical simulation of the ejection of underexpanded microjets from the slotted nozzle into still air has been carried out in 2D statement. Calculations have been performed at the same conditions in the still area as experimental ones. Stationary Reynolds-averaged Navier-Stokes equations have been solved for the turbulent flow regime with the turbulence model k-ω SST. The measurements and visualization of the flow allowed us to obtain parameters: the length both of a non-dimensional average shock cell and the first one.
AB - Recently, interest in micro-jet research has increased that is related to the potential use of micro-jets in various applications of aerospace and chemical industries. Non-axisymmetric nozzles, in particular rectangular ones, are often used due to design considerations. The purpose of this work is numerical and experimental study of the ejection of underexpanded micro jets from a slotted nozzle into still air in wide range of jet pressure ratio, height of the rectangular nozzle, and height-to-width ratio. The jets have sonic velocity at the nozzle exit. The paper presents the results of experiments on visualization of the gas micro-jets outflow using a shadowgraph method, as well as longitudinal and transverse pressure distribution measured by Pitot tubes. Numerical simulation of the ejection of underexpanded microjets from the slotted nozzle into still air has been carried out in 2D statement. Calculations have been performed at the same conditions in the still area as experimental ones. Stationary Reynolds-averaged Navier-Stokes equations have been solved for the turbulent flow regime with the turbulence model k-ω SST. The measurements and visualization of the flow allowed us to obtain parameters: the length both of a non-dimensional average shock cell and the first one.
UR - http://www.scopus.com/inward/record.url?scp=85056334675&partnerID=8YFLogxK
U2 - 10.1063/1.5065185
DO - 10.1063/1.5065185
M3 - Conference contribution
AN - SCOPUS:85056334675
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 -
ID: 17413668