Direct numerical simulations of laminar separation bubbles on a curved plate: Part 1 - Simulation setup and uncontrolled flow

Wolfgang Balzer, Hermann F Fasel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

The aerodynamic performance of lifting surfaces operating at low Reynolds number conditions is impaired by laminar separation. For a modern low-pressure turbine (LPT) stage, in particular when designed for high blade loadings, laminar separation at cruise conditions can result in significant performance degradation. Understanding of the physical mechanisms and hydrodynamic instabilities that are associated with laminar separation and the formation of laminar separation bubbles (LSBs) is key for the design and development of effective and efficient active flow control (AFC) devices. For the present work, laminar separation (part I) and its control (part II) were investigated numerically by employing highly-resolved, high-order accurate direct numerical simulations (DNS).

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Turbo Expo
Volume6 B
DOIs
StatePublished - 2013
EventASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 - San Antonio, Tx, United States
Duration: Jun 3 2013Jun 7 2013

Other

OtherASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
CountryUnited States
CitySan Antonio, Tx
Period6/3/136/7/13

Fingerprint

Direct numerical simulation
Flow control
Aerodynamics
Reynolds number
Turbines
Hydrodynamics
Degradation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Direct numerical simulations of laminar separation bubbles on a curved plate : Part 1 - Simulation setup and uncontrolled flow. / Balzer, Wolfgang; Fasel, Hermann F.

Proceedings of the ASME Turbo Expo. Vol. 6 B 2013. GT2013-95277.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Balzer, W & Fasel, HF 2013, Direct numerical simulations of laminar separation bubbles on a curved plate: Part 1 - Simulation setup and uncontrolled flow. in Proceedings of the ASME Turbo Expo. vol. 6 B, GT2013-95277, ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013, San Antonio, Tx, United States, 6/3/13. https://doi.org/10.1115/GT2013-95277
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