Research output: Contribution to journal › Conference article › peer-review
Non-uniqueness of transonic flow in an intake-type channel. / Kuzmin, A.
In: Journal of Physics: Conference Series, Vol. 1392, No. 1, 012012, 13.12.2019.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Non-uniqueness of transonic flow in an intake-type channel
AU - Kuzmin, A.
PY - 2019/12/13
Y1 - 2019/12/13
N2 - The two-dimensional turbulent airflow in a 9-degrees-bent channel is studied numerically. Inner surfaces of the top and bottom walls are parallel to each other upstream and downstream of the bend. The free stream is supersonic, whereas the flow is subsonic at the channel exit. Solutions of the Reynolds-averaged Navier-Stokes equations are obtained with a finite-volume solver using the Spalart-Allmaras and Shear Stress Transport k-! turbulence models. The solutions reveal a flow hysteresis and non-uniqueness in considerable bands of the free-stream Mach number, angle of attack, and exit pressure. At the endpoints of the bands, there are abrupt changes of the shock wave system. The non-uniqueness admits different losses of the total pressure, which may cause different trusts of an air breathing engine.
AB - The two-dimensional turbulent airflow in a 9-degrees-bent channel is studied numerically. Inner surfaces of the top and bottom walls are parallel to each other upstream and downstream of the bend. The free stream is supersonic, whereas the flow is subsonic at the channel exit. Solutions of the Reynolds-averaged Navier-Stokes equations are obtained with a finite-volume solver using the Spalart-Allmaras and Shear Stress Transport k-! turbulence models. The solutions reveal a flow hysteresis and non-uniqueness in considerable bands of the free-stream Mach number, angle of attack, and exit pressure. At the endpoints of the bands, there are abrupt changes of the shock wave system. The non-uniqueness admits different losses of the total pressure, which may cause different trusts of an air breathing engine.
UR - http://www.scopus.com/inward/record.url?scp=85078099478&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1392/1/012012
DO - 10.1088/1742-6596/1392/1/012012
M3 - Conference article
AN - SCOPUS:85078099478
VL - 1392
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012012
T2 - 4th International Conference on Supercomputer Technologies of Mathematical Modelling, SCTeMM 2019
Y2 - 19 June 2019 through 21 June 2019
ER -
ID: 50476505