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Computation of the ...
Computation of the acoustic field in an annular gas turbine combustion chamber using a hybrid approach
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- Szász, Robert-Zoltán (author)
- Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Energy Sciences, Lund University
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- Mihaescu, Mihai (author)
- Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Aerospace Engineering, University of Cincinnati
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- Fuchs, Laszlo (author)
- Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Energy Sciences, Lund University
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- Duwig, Christophe (author)
- Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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Lajos, Tamas (editor)
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Vad, Janos (editor)
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(creator_code:org_t)
- ASME, 2006
- 2006
- English.
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In: Proceedings of the ASME Turbo Expo. - : ASME. ; 6 PART B, s. 1615-1624, s. 363-370, s. 1615-1624
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Abstract
Subject headings
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- The acoustic field generated by flow unsteadiness in a model annular gas turbine (GT) combustion chamber is determined using a hybrid approach. In the flow solver the semi-compressible Navier-Stokes equations are resolved using LES as turbulence model. The acoustic solver is based on an inhomogeneous wave equation, where the instantaneous source terms are computed from the LES data in each time-instant. The flow and the acoustics in a GT combustor with co- and counter-rotating swirler burners have been considered. The results have shown that significant differences can be observed between the co- and counter-rotating configurations both in the flow and acoustic fields. Copyright
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Time instant
- Acoustic solvers
- Flow unsteadiness
- Flow solvers
Publication and Content Type
- kon (subject category)
- ref (subject category)
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