Arc-heat­ed wind tun­nel (L3K)

Arc-heated wind tunnel (L3K)
Arc-heat­ed wind tun­nel (L3K)
Image 1/5, Credit: DLR (CC BY-NC-ND 3.0)

Arc-heated wind tunnel (L3K)

Wa­ter-cooled mod­el hold­er for ex­per­i­ments on pan­el con­fig­u­ra­tions in the arc-heat­ed wind tun­nel.
Stereo photography
Stereo pho­tog­ra­phy
Image 2/5, Credit: DLR (CC BY-NC-ND 3.0)

Stereo photography

Ex­per­i­men­tal set-up for the in­ves­ti­ga­tion of bump ef­fects us­ing stereo pho­tog­ra­phy in L3K.
Measuring chamber
Mea­sur­ing cham­ber
Image 3/5, Credit: DLR (CC BY-NC-ND 3.0)

Measuring chamber

L3K mea­sur­ing cham­ber with op­ti­cal com­po­nents for stereo pho­tog­ra­phy mea­sure­ments.
L3K in Cologne
L3K in Cologne
Image 4/5, Credit: DLR (CC BY-NC-ND 3.0)

L3K in Cologne

Arc-heat­ed wind tun­nel (L3K) in Cologne.
Test model with specific surface pattern
Test mod­el with spe­cif­ic sur­face pat­tern
Image 5/5, Credit: DLR (CC BY-NC-ND 3.0)

Test model with specific surface pattern

Test mod­el with a spe­cif­ic sur­face pat­tern for the in­ves­ti­ga­tion of bump ef­fects with stereo pho­tog­ra­phy in L3K.

The arc-heated wind tunnel (L3K) at the German Aerospace Center (DLR) Institute of Aerodynamics and Flow Technology in Cologne is used to generate the extreme flow conditions that prevail directly around a spacecraft as it enters an atmosphere.

Wind tunnel for testing thermal shields on spacecraft

The L3K is a key facility in Europe for the testing of high-temperature structures due to its operational efficiency and the specific conditions it can create. High-temperature materials used as thermal shields for spacecraft and missiles can be characterised and qualified under realistic conditions using this arc-heated wind tunnel.

Moreover, L3K delivers valuable reference data to validate numerical simulation methods for high-enthalpy flows. L3K tests are used for the direct qualification of high-temperature materials and sensors for flight.

Contact
  • Volker Speelmann
    Head of Re­search In­fras­truc­tures
    Ger­man Aerospace Cen­ter (DLR)
    Telephone: +49 2203 601-4103
    Fax: +49 2203 601 4115
    Linder Höhe
    51147 Cologne
    Contact
  • Ali Gülhan
    Ger­man Aerospace Cen­ter (DLR)
    In­sti­tute of Aero­dy­nam­ics and Flow Tech­nol­o­gy
    Su­per­son­ic and Hy­per­son­ic Tech­nol­o­gy
    Linder Höhe
    51147 Cologne
    Contact

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