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Interferometric measurement of the aerothermodynamic wall interaction along a plate in longitudinal flow / Interferometrische Messung der aerothermodynamischen Wand-Wechselwirkung an einer laengsangestroemten Platte

  • Lieseberg, A. (Technische Univ. Braunsch...
Publication Date
Jan 01, 1994
OpenGrey Repository


The present doctoral thesis reports on interferometric measurement of the aerothermodynamic influence of wall catalycity on a plate boundary-layer flow in thermodynamic nonequilibrium. This investigation is made with regard to oxygen recombinations at the surface materials aluminum oxide and silicon oxide. This thesis is in close connection with the development of a new design method for reentry capsules. It makes a contribution to partial validation of the Taylor-Galerkin finite element method used to solve the Navier-Stokes equations. Within the framework of this thesis, a new short-time measurement technique was developed for partial density measurement. This is a two-wavelength laser differential interferometer which was used to determine the atom recombination coefficient and the recombination velocity coefficient of the underlying phenomenological wall interaction model. The missing energy accommodation parameter was also determined for aluminum oxide using the results of partial density measurement by simultaneous thermal flow measurement in the study of Maul. The reliability of the measurements and the purity of the gases and materials used was improved not least owing to the defined inflow conditions in the newly constructed shock tube. (orig.) / Available from TIB Hannover: RO 8542(94-08) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Informationsbibliothek / SIGLE / DE / Germany

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