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Sökning: WFRF:(Kristmundsson Darri)

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1.
  • Bordogna, Marco Tito, et al. (författare)
  • MUSCAT experiment : active free falling units for in situ measurements of temperature and density in the middle atmosphere
  • 2013
  • Ingår i: European Space Agency. - ESTEC, Noordwijk, The Netherlands : ESA Communications. - 9789290922858 ; , s. 575-582
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The main scientific objective of the MUSCAT Experimentis to develop a technique to reconstruct temperatures and density profiles in the middle atmosphere using active spherical probes. The MUSCAT experiment was launched on May 9, 2013 on the REXUS-13 sounding rocket from Esrange, in northern Sweden. The experiment ejected four probes that collected raw GPS signal. The experiment design and preliminary results are presented here.
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2.
  • Rojo, Borja, 1989, et al. (författare)
  • Facility for investigating the flow in a low pressure turbine exit structure
  • 2015
  • Ingår i: European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC. - 2313-0067 .- 2410-4833.
  • Konferensbidrag (refereegranskat)abstract
    • This paper presents the design of a turbine facility for the investigation of the flow in the engine exit structure (EES) at Chalmers University. The EES is the structure located downstream of the low-pressure turbine in a jet engine. In the current facility, in order to generate realistic inlet boundary conditions for the EES, an LPT stage is located upstream of the EES. The facility is a large-scale, low-speed annular cascade, and the flow Reynolds number based on the channel height in the turbine stage is 465,000, which is representative for large turbofan engines. The design of the facility follows classical low speed wind tunnel design. Experimental correlations obtained from data collected in a previous rig and from previous studies in low-speed wind tunnels have been used to compute pressure losses. CFD has been used in the design of the facility.
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