Abstract
An existing axisymmetric body viscous shock layer code including chemical, thermal, and thermodynamic nonequilibrium and nonequilibrium radiative gasdynamic coupling is adapted to simulate the one-dimensional flow within a shock tube. A suitable solution scheme for this case and additional radiation modelling is developed in order to compare the current computational results with experimental radiation measurements. Spectral radiation intensity, spectrally integrated intensity traces, time to peak radiation, and ionization time data were generated for shocks in air with speeds between 9.5 km/sec and 12.6 km/sec. Overall, good agreement is seen between the current calculations and the available experimental data. Reproduction of the experimental data is best achieved when integrated values over broad frequency bands are considered and the details concerning what specifically was measured in the experiment are known. Based upon the spectral response of the filters used in Wilson's shock tube experiment, the characteristics of Wilson's experimental radiation measurements are reproduced without adding iron contamination to the radiation model. The results also show that a more detailed continuum radiation calculation could I improve the current model's spectral resolution. Overall, the results justify the use of the current nonequilibrium models for engineering use.
Mott, David Ray (1993). Normal shock solutions to the viscous shock layer equations including thermal, chemical, thermodynamic, and radiative nonequilibrium. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1993 -THESIS -M921.