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versa. The free vortex is a classical design approach in axial hydraulic turbines. However, if the guide vane geometry does not furnish the free vortex at ...

http://journals.pepublishing.com/index/V68233N078R33057.pdf

1. With free vortex and radial equilibrium, the radial variation of the parameters from root to tip at the exit of the nozzle of an axial flow gas turbine ...

http://journals.pepublishing.com/index/G7257652W7L17K32.pdf

by L Moroz - Related articles

http://www.softinway.com/news/articles/Axial-turbine-stages-design-1D-2D-3D-simulation-experiment-optimization.pdf

describes blades of an axial turbine in general, but the method of solving the ..... introduce a system of free axial vortices emerging from the ends of the ...

http://www.springerlink.com/index/U407HN0J060N4272.pdf

turbine aerodynamics is possible using free wake vortex calculation schemes. ... (rotor axial thrust and side thrust on the rotor and machine structure). ...

http://www.springerlink.com/index/MB6EG360YTF4AN62.pdf

This Paper presents design and analysis of a high performance axial turbine stage for an Auxiliary Power Unit. Preliminary free vortex based design, ...

http://pdf.aiaa.org/preview/CDReadyMMAOC08_1876/PV2008_6055.pdf

reducing it in an axial flow turbine. Figure 1 shows the schematic drawing of the scraping vortex interaction with the blade tip flow in a compressor and ...

http://pdf.aiaa.org/jaPreview/JPP/1988/PVJAPRE23087.pdf

by J VAD - Cited by 1

http://www.pp.bme.hu/me/2002_2/pdf/me2002_2_03.pdf

by VAD János - Related articles

http://www.pp.bme.hu/me/2001_2/pdf/me2001_2_08.pdf

and characteristic of a axial turbine are ... a free-vortex design for the intake velocity distribution. ... to the undisturbed free-stream velocity, WN ...

http://www.cerpch.unifei.edu.br/Adm/artigos/af40fd4f893bfa83b4aa199801abf12c.pdf

THE FREE VORTEX SPECIFICATION. The free vortex design specification is a statement of the constancy of the axial component of ...

http://multi-science.metapress.com/index/Y0Q61K1214047734.pdf

by L Porreca - Cited by 8

http://www.limmatscientific.ch/papers/part02.pdf

by C Kasper - Cited by 1

http://www.mtu.de/en/technologies/engineering_news/development/Gier_a_study_of_unsteady_en.pdf

An axial turbine whose hub-tip ratio is 0.57 has a flow coefficient of 0.5, ... are being considered for the flow: One is free vortex and the other is ...

http://opencourseware.kfupm.edu.sa/colleges/ces/ae/ae422/files\2-Homeworks_AE422_HW05.pdf

Since in an axial turbine, U2 ~ U3 = U, the turbine work per unit mass is. Defining .... Radial equilibrium: free-vortex flow satisfactory assumption ...

http://opencourseware.kfupm.edu.sa/colleges/ces/ae/ae422/files\3-Lectures_AE422_L06.pdf

Velocity diagrams of the axial turbine stage 94. Thermodynamics of the axial turbine stage 95 ... Free-vortex turbine stage 192. Actuator disc approach 194 ...

http://sutlib2.sut.ac.th/sut_contents/H93828.pdf

by SL Dixon - Cited by 148

http://www.ulb.tu-darmstadt.de/tocs/128345446.pdf

by ALA Mesquita - Related articles

http://www.scielo.br/pdf/jbsmse/v30n1/a05v30n1.pdf

by I Dobrev - Related articles

http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2008/papers/09.3_4.pdf

The free stream fluid will have more resistance during its entry .... vortices in an axial flow turbine stage. Time accurate total pressure measurements at ...

http://www.personal.psu.edu/faculty/c/x/cxc11/papers/3_Tip_Platform_Extension.pdf

by B Gumusel - Related articles

http://www.personal.psu.edu/faculty/c/x/cxc11/papers/CC_BG_Journal.of.HT.pdf

[15] Simoes, F. J. and Graham, J. M. R., A Free Vortex Model of the Wake of a Horizontal Axis Wind Turbine, Proceed- ings of 12th British Wind Energy ...

http://homepage3.nifty.com/chacocham/Wind_Note/note/Wind_Aero.pdf

by JN SØRENSEN - Related articles

http://www.ewec2009proceedings.info/allfiles2/523_EWEC2009presentation.pdf

Twist of S, Stream Surfaces in Axial-flow Turbomachine Cascades ... For a turbine stage with free-vortex design, |tg,82—tg/3i| is some- ...

http://www.scichina.com:8081/sciAe/fileup/PDF/83ya0442.pdf

by AP Schaffarczyk - Related articles

http://149.222.198.151/~nummech/pdf-files/EWEC2001.pdf

Also, axial compressors work very similar to axial turbines. .... This condition is known as the free vortex condition. It's often used, when designing ...

http://www.aerostudents.com/files/gasTurbines/compressorsAndTurbines.pdf

by AA Makaruk - Related articles

http://publik.tuwien.ac.at/files/pub-mb_3690.pdf

- Related articles

http://www-diva.eng.cam.ac.uk/whittle/publications/chaluvadi_thesis.pdf

rothalpy. Euler turbine equation. Chapter 5a, Axial Compressors. Ulf Håll, Turbomachinery ..... over stage. i.e. free vortex before give free vortex behind ...

http://www.tfd.chalmers.se/~ulfh/gas_turb_h/crsohbilder/crs5aen.pdf

flow in axial flow fans of non-free vortex design,. International J. of Heat and Fluid Flow, vol. ... stator-rotor interaction in axial turbine, ASME PVP ...

http://www.scialert.net/pdfs/itj/2002/242-249.pdf

3D Effects in Axial Flow Machines radial equilibrium free vortex flow free vortex turbine secondary flows. Centrifugal Pumps, Fans and Compressors ...

http://me.queensu.ca/courses/MECH439/documents/outline.pdf

on highly loaded fans of non-free vortex design, with the ideal total head rise coef ...... transonic axial compressor stage. J. for Gas Turbine and Power, ...

http://pep.metapress.com/index/P94782372477GW3R.pdf

1) from the assumption of free vortex flow in- side it. .... Even if no real partial admission, well-known from axial turbines, occurs mixing of ...

http://www3.fs.cvut.cz/web/fileadmin/documents/12241-BOZEK/publikace/2001/KoKa2001_tur.pdf

by JJ CHATTOT - Cited by 13

http://members3.jcom.home.ne.jp/cfdj1514/cfdj_list/absV11N1/v11n1a05.pdf

by SA Akeel - Related articles

http://www.uqu.edu.sa/files2/tiny_mce/plugins/filemanager/files/admins/mg1f1430/7.pdf

by R SUSAN-RESIGA - Cited by 2

http://acad-tim.tm.edu.ro/iSMART-flow/pdf/Resiga4ISFMFE_Beijing.pdf

NATIONAL GAS TURBINE ESTABLISHMENT. The Performance of the 108 Cox,pre?sor Fitted with. Low Stagsr Free Vortex Blading. D. V. Foster ...

http://naca.central.cranfield.ac.uk/reports/arc/cp/0144.pdf

the velocities are normalized with the free stream velocity, which is 9.3 m/s. ... bound vortices. The axial velocity induced by the bound vortices is ...

http://www.iop.org/EJ/article/1742-6596/75/1/012036/jpconf7_75_012036.pdf

be the circumferential and axial components of the velocity, induced by the free vortex wake behind the rotor, at a blade element in the rotor plane. Then, ...

http://www.iop.org/EJ/article/1742-6596/75/1/012009/jpconf7_75_012009.pdf

unsteadiness arising from vortex shedding in the wake behind a turbine blade with ... An accurate prediction of free transition appears impossible in the ...

http://ec.europa.eu/research/growth/aeronautics-days/pdf/session-c/sieverding.pdf

Response of the boundary layer to axial free-stream vortices. ... Wing-tip vortices due to previous passage of aircraft. • Turbine and compressor ...

http://www.flow.kth.se/iutam09/presentations/presentation-P01.pdf

Free-vortex condition, 200. Free-vortex flow, 125. Full-admission steam turbines, 263 ... axial-flow turbine performance, 227–232 blade cooling in, 243–245 ...

http://media.wiley.com/product_data/excerpt/29/04701242/0470124229-2.pdf

An axial flow turbine has a small stage efficiency of 86%, an overall pressure ... designated "free-vortex", the axial velocity is constant for each stage. ...

http://www.campus.manchester.ac.uk/ssc/pastpapers/2009/Semester_2/MACE May 09/MACE31212.pdf

Axial-flow machine 596. Axial-flow pumps 634–5. Axial-flow turbine 596, 607 .... free vortex design635 mixed-flow pump 634. Impulse turbines 597 ...

http://www.tandf.co.uk/textbooks/0415362067/pdf/Mech_Index.pdf

by RS Couchman - Cited by 2

http://www.ge-energy.com/prod_serv/products/tech_docs/en/downloads/ger3705.pdf

processes occur in axial turbines but the higher blade loadings ... files were stacked about a radial axis to achieve free-vortex flow ...

http://www.aeromech.usyd.edu.au/15afmc/proceedings/papers/AFMC00086.pdf

by A Andersen - Cited by 17

http://dcwww.fys.dtu.dk/~aanders/papers/Bathtub-PRL.pdf

by A Ruprecht - Cited by 21

http://kwk.ihs.uni-stuttgart.de/fileadmin/IHS-Startseite/veroeffentlichungen/v2000_03.pdf

LE corner vortex and ωx=axial vorticity. Source: See Note 25. 4.3 Turbine Blade Aerodynamics. Fig. 11. Flow visualization of passage vortex and induced ...

http://www.netl.doe.gov/technologies/coalpower/turbines/refshelf/handbook/4.3.pdf

by R Palm - Cited by 5

http://www.ercoftac.org/fileadmin/user_upload/bigfiles/sig15/database/12.2/palm-et-al-etmm6-final.pdf