Zobrazeno 1 - 10
of 17
pro vyhledávání: '"André Huppertz"'
Autor:
Martin Hecklau, Marius Swoboda, Rudibert King, Olaf Wiederhold, André Huppertz, Wolfgang Nitsche
Publikováno v:
International Journal of Flow Control. 2:219-236
An experimental study of a closed-loop multiple-input multiple-output (MIMO) control strategy is presented to mitigate flow separation in a compressor cascade. As a result of the highly loaded stator blades a complex three dimensional flow field deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90f15404ceb08361a8dd490eac9ca596
https://doi.org/10.1260/1756-8250.2.4.219
https://doi.org/10.1260/1756-8250.2.4.219
Autor:
Marius Swoboda, André Huppertz, R. van Rennings, Wolfgang Nitsche, Vincent Zander, Martin Hecklau
Publikováno v:
Experiments in Fluids. 50:799-811
AFC (Active Flow Control) experiments have been performed by means of steady and pulsed blowing out of the sidewalls as well as out of the blade’s suction surface in a highly loaded compressor cascade. PIV (Particle Image Velocimetry) was used to e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ec1858bffabf6b33da46ec2937d1ebf
https://doi.org/10.1007/s00348-010-0895-z
https://doi.org/10.1007/s00348-010-0895-z
Autor:
Hans-Hermann Fernholz, André Huppertz
Publikováno v:
European Journal of Mechanics - B/Fluids. 21:429-446
The aim of this experimental investigation has been to reduce the length of the three-dimensional separation region downstream of a swept surface-mounted fence by time-periodic blowing and suction generated by loudspeakers along a spanwise slot eithe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe9d9093c16d3f0fd4393daca03b9cb
https://doi.org/10.1016/s0997-7546(02)01190-1
https://doi.org/10.1016/s0997-7546(02)01190-1
Publikováno v:
Volume 2B: Turbomachinery.
Typically, complex components are designed with a CAD system, where free-form surfaces are usually described by B-Spline or NURBS surfaces. Especially in turbo machinery, design is performed for hot working conditions. However, for manufacturing a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e6231108c94ed1f15444b25e40029e
https://doi.org/10.1115/gt2014-26683
https://doi.org/10.1115/gt2014-26683
Publikováno v:
Volume 2B: Turbomachinery.
Compressor maps of aero engines show the relation between corrected inlet mass flow and total pressure ratio for various engine speeds. Different speed lines represent different operating conditions of the compressor, where especially operating bound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dc1c231ae8216f164becea1dd04ac2f
https://doi.org/10.1115/gt2014-26131
https://doi.org/10.1115/gt2014-26131
Publikováno v:
European Journal of Mechanics - B/Fluids. 20:25-46
Results from a joint experimental and direct numerical simulation (DNS) investigation are presented for the flow over a backward-facing step manipulated by low-amplitude time-periodic (harmonic) blowing/suction excitation through a narrow slot at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68037de3b4d7222ecab7fe157cb971fa
https://doi.org/10.1016/s0997-7546(00)01105-5
https://doi.org/10.1016/s0997-7546(00)01105-5
Autor:
Christoph Gmelin, Wolfgang Nitsche, Marius Swoboda, André Huppertz, Martin Hecklau, Frank Thiele
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b8ce5c06c02efb81b080036d6d14568
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::545b1832a3b6d8161f1ef969774e1b01
Publikováno v:
Volume 7: Turbomachinery, Parts A, B, and C.
A highly loaded compressor cascade is analyzed by means of time-resolved 3D RANS simulations. Due to the low aspect ratio of the cascade, strong three-dimensional effects emerge, such as large corner vortices and trailing edge separation at the midsp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efdbe73e16df98f88c1f23bf99657c28
https://doi.org/10.1115/gt2010-22516
https://doi.org/10.1115/gt2010-22516
Autor:
André Huppertz, Wolfgang Nitsche, Martin Hecklau, Olaf Wiederhold, Rudibert King, Vincent Zander, Marius Swoboda
Publikováno v:
5th Flow Control Conference.
DOI: 10.2514/1.J050931 In this contribution the impact of active flow control by means of pulsed blowing in a critically loaded compressor cascadewillbedescribed.Becauseofthehighloadingoftheblades,afullythree-dimensionalandcomplex flowfieldis develop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0d1a2cb73da0abc7eadcd14969e1e4f
https://doi.org/10.2514/6.2010-4252
https://doi.org/10.2514/6.2010-4252