Details
| Original language | English |
|---|---|
| Title of host publication | ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition |
| Publisher | American Society of Mechanical Engineers(ASME) |
| Number of pages | 16 |
| Volume | 2B: Turbomachinery |
| ISBN (print) | 9780791851005 |
| Publication status | Published - 2018 |
| Event | ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018 - Oslo, Norway Duration: 11 Jun 2018 → 15 Jun 2018 |
Publication series
| Name | Turbo Expo: Power for Land, Sea, and Air |
|---|
Abstract
Exact inflow conditions for DNS and LES can be generated by resource-intensive precursor simulations of three-dimensional periodic boxes or infinite channels, in the case where a wallbounded flow is investigated. A cheaper and much more flexible alternative is the use of synthetic boundary conditions. In the proposed paper, a modified synthetic-eddy-method will be presented, which suits the demands and specifications of turbomachinery applications. It will further be extended to subsonic compressible flows by adding a mechanism to uncouple acoustic waves. It is applied to synthetically reproduce the wake of a turbine test case and validated against the original cascade simulation which is presented in the according Part B paper. This highly flexible approach also provides interfaces to prescribe unsteady inflow conditions, by temporally changing velocities, Reynolds stresses, and turbulent length-scales.
ASJC Scopus subject areas
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ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. Vol. 2B: Turbomachinery American Society of Mechanical Engineers(ASME), 2018. (Turbo Expo: Power for Land, Sea, and Air).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part A
T2 - ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018
AU - Müller-Schindewolffs, Christoph
AU - Herbst, Florian
N1 - Publisher Copyright: © Copyright 2018 ASME.
PY - 2018
Y1 - 2018
N2 - Exact inflow conditions for DNS and LES can be generated by resource-intensive precursor simulations of three-dimensional periodic boxes or infinite channels, in the case where a wallbounded flow is investigated. A cheaper and much more flexible alternative is the use of synthetic boundary conditions. In the proposed paper, a modified synthetic-eddy-method will be presented, which suits the demands and specifications of turbomachinery applications. It will further be extended to subsonic compressible flows by adding a mechanism to uncouple acoustic waves. It is applied to synthetically reproduce the wake of a turbine test case and validated against the original cascade simulation which is presented in the according Part B paper. This highly flexible approach also provides interfaces to prescribe unsteady inflow conditions, by temporally changing velocities, Reynolds stresses, and turbulent length-scales.
AB - Exact inflow conditions for DNS and LES can be generated by resource-intensive precursor simulations of three-dimensional periodic boxes or infinite channels, in the case where a wallbounded flow is investigated. A cheaper and much more flexible alternative is the use of synthetic boundary conditions. In the proposed paper, a modified synthetic-eddy-method will be presented, which suits the demands and specifications of turbomachinery applications. It will further be extended to subsonic compressible flows by adding a mechanism to uncouple acoustic waves. It is applied to synthetically reproduce the wake of a turbine test case and validated against the original cascade simulation which is presented in the according Part B paper. This highly flexible approach also provides interfaces to prescribe unsteady inflow conditions, by temporally changing velocities, Reynolds stresses, and turbulent length-scales.
UR - http://www.scopus.com/inward/record.url?scp=85054096183&partnerID=8YFLogxK
U2 - 10.1115/GT2018-75162
DO - 10.1115/GT2018-75162
M3 - Conference contribution
AN - SCOPUS:85054096183
SN - 9780791851005
VL - 2B: Turbomachinery
T3 - Turbo Expo: Power for Land, Sea, and Air
BT - ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition
PB - American Society of Mechanical Engineers(ASME)
Y2 - 11 June 2018 through 15 June 2018
ER -