Mechanical impact of dynamic phenomena in Francis turbines at off design conditions

F. Duparchy, J. Brammer, M. Thibaud, Arthur Tristan Favrel, P. Y. Lowys, F. Avellan

研究成果: Conference article

3 引用 (Scopus)

抄録

At partial load and overload conditions, Francis turbines are subjected to hydraulic instabilities that can potentially result in high dynamic solicitations of the turbine components and significantly reduce their lifetime. This study presents both experimental data and numerical simulations that were used as complementary approaches to study these dynamic solicitations. Measurements performed on a reduced scale physical model, including a special runner instrumented with on-board strain gauges and pressure sensors, were used to investigate the dynamic phenomena experienced by the runner. They were also taken as reference to validate the numerical simulation results. After validation, advantage was taken from the numerical simulations to highlight the mechanical response of the structure to the unsteady hydraulic phenomena, as well as their impact on the fatigue damage of the runner.

元の言語English
記事番号012035
ジャーナルJournal of Physics: Conference Series
813
発行部数1
DOI
出版物ステータスPublished - 2017 4 4
外部発表Yes
イベントHYdropower Plants PERformance and FlexiBle Operation Towards Lean Integration of New Renewable Energies Symposium, HYPERBOLE 2017 - Porto, Portugal
継続期間: 2017 2 22017 2 3

Fingerprint

turbines
hydraulics
simulation
strain gages
data simulation
pressure sensors
damage
life (durability)
sensors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Mechanical impact of dynamic phenomena in Francis turbines at off design conditions. / Duparchy, F.; Brammer, J.; Thibaud, M.; Favrel, Arthur Tristan; Lowys, P. Y.; Avellan, F.

:: Journal of Physics: Conference Series, 巻 813, 番号 1, 012035, 04.04.2017.

研究成果: Conference article

Duparchy, F. ; Brammer, J. ; Thibaud, M. ; Favrel, Arthur Tristan ; Lowys, P. Y. ; Avellan, F. / Mechanical impact of dynamic phenomena in Francis turbines at off design conditions. :: Journal of Physics: Conference Series. 2017 ; 巻 813, 番号 1.
@article{804f29a03b5d41d7ac0e6f8aee1b5dcc,
title = "Mechanical impact of dynamic phenomena in Francis turbines at off design conditions",
abstract = "At partial load and overload conditions, Francis turbines are subjected to hydraulic instabilities that can potentially result in high dynamic solicitations of the turbine components and significantly reduce their lifetime. This study presents both experimental data and numerical simulations that were used as complementary approaches to study these dynamic solicitations. Measurements performed on a reduced scale physical model, including a special runner instrumented with on-board strain gauges and pressure sensors, were used to investigate the dynamic phenomena experienced by the runner. They were also taken as reference to validate the numerical simulation results. After validation, advantage was taken from the numerical simulations to highlight the mechanical response of the structure to the unsteady hydraulic phenomena, as well as their impact on the fatigue damage of the runner.",
author = "F. Duparchy and J. Brammer and M. Thibaud and Favrel, {Arthur Tristan} and Lowys, {P. Y.} and F. Avellan",
year = "2017",
month = "4",
day = "4",
doi = "10.1088/1742-6596/813/1/012035",
language = "English",
volume = "813",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Mechanical impact of dynamic phenomena in Francis turbines at off design conditions

AU - Duparchy, F.

AU - Brammer, J.

AU - Thibaud, M.

AU - Favrel, Arthur Tristan

AU - Lowys, P. Y.

AU - Avellan, F.

PY - 2017/4/4

Y1 - 2017/4/4

N2 - At partial load and overload conditions, Francis turbines are subjected to hydraulic instabilities that can potentially result in high dynamic solicitations of the turbine components and significantly reduce their lifetime. This study presents both experimental data and numerical simulations that were used as complementary approaches to study these dynamic solicitations. Measurements performed on a reduced scale physical model, including a special runner instrumented with on-board strain gauges and pressure sensors, were used to investigate the dynamic phenomena experienced by the runner. They were also taken as reference to validate the numerical simulation results. After validation, advantage was taken from the numerical simulations to highlight the mechanical response of the structure to the unsteady hydraulic phenomena, as well as their impact on the fatigue damage of the runner.

AB - At partial load and overload conditions, Francis turbines are subjected to hydraulic instabilities that can potentially result in high dynamic solicitations of the turbine components and significantly reduce their lifetime. This study presents both experimental data and numerical simulations that were used as complementary approaches to study these dynamic solicitations. Measurements performed on a reduced scale physical model, including a special runner instrumented with on-board strain gauges and pressure sensors, were used to investigate the dynamic phenomena experienced by the runner. They were also taken as reference to validate the numerical simulation results. After validation, advantage was taken from the numerical simulations to highlight the mechanical response of the structure to the unsteady hydraulic phenomena, as well as their impact on the fatigue damage of the runner.

UR - http://www.scopus.com/inward/record.url?scp=85017459110&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017459110&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/813/1/012035

DO - 10.1088/1742-6596/813/1/012035

M3 - Conference article

AN - SCOPUS:85017459110

VL - 813

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012035

ER -