Combined Measurements and Computations of High Enthalpy and Plasma Flows for Determination of TPM Surface Catalycity
Abstract
The paper presents the method for the TPM catalycity prediction on the basis of high enthalpy plasmatron heat transfer tests, performed in subsonic regimes, and appropriate CFD modeling of the whole plasma flow field in the plasma wind tunnel (1), viscous reacting gas flows around a test model (2), a nonequilibrium boundary layer near the stagnation point of a test model (3) and analysis of the heat transfer for test conditions at the small Reynolds and Mach numbers (4). In general, the methodology was developed during the study of the catalytic efficiencies of the Buran TPM - the black ceramic tile and the C-C material with antioxidation coating - in dissociated nitrogen and air reacting flows. This experimental-theoretical methodology has been modified recently for the determination of TPM catalycity in subsonic carbon dioxide and pure oxygen flows from high enthalpy tests performed by using the 1 00-kW inductive IPG-4 plasmatron. The interaction between combined ground test measurements and CFD modeling is considered as genesis for catalytic effects duplication, plasma flow field rebuilding and the extraction of the quantitative catalycity parameters from the measured high enthalpy flow parameters, surface temperature and stagnation point heat fluxes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2000
- Accession Number
- ADP010748
Entities
People
- A. F. Kolesnikov