Numerical Interpretation of Experimental Data on the Spectral Radiation of Shock Waves in Air at Velocities of 7÷8 km/s using the eRC-model


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Using the electron-radiative-collision model (eRC), calculations of the spectral emissivity of shock waves in air at velocities of 7÷8 km/s were performed under the conditions of shock-wave experiments [Cruden B. A., Brandis A. V. Measurement of Radiative Nonequilibrium for Air Shocks Between 7 and 9 km/s//JTHT. 2019]. A kinetic model of the population and depletion of electronically excited quantum states of diatomic mole-cules is presented. Satisfactory agreement between the obtained calculated and experi-mental data is shown. A formulation of current problems for the further development of eRC-models is given.

radiation-collision model, emissivity of electron-vibrational bands of diatomic molecules, experimental data on the spectral radiation of strong shock waves

DOI: http://doi.org/10.33257/PhChGD.25.7.1154


Volume 25, issue 7, 2024 year


Численная интерпретация экспериментальных данных по спектральному излучению ударных волн в воздухе при скоростях 7 ÷ 8 км/с посредством eRC-модели

С использованием электронно-радиационно-столкновительной модели (eRC) выпол-нены расчеты спектральной излучательной способности ударных волн в воздухе при скоростях 7 ÷ 8 км/с в условиях проведения ударно-волновых экспериментов [Cru-den B.A., Brandis A.V. Measurement of Radiative Nonequilibrium for Air Shocks Be-tween 7 and 9 km/s//JTHT. 2019]. Представлена кинетическая модель заселения и опустошения электронно-возбужденных квантовых состояний двухатомных моле-кул. Показано удовлетворительное совпадение полученных расчетных и экспери-ментальных. Дана формулировка актуальных задач дальнейшего развития eRC-моделей.

радиационно-столкновительная модель, излучательные способности электронно-колебательных полос двухатомных молекул, экспериментальные данные по спек-тральному излучению сильных ударных волн

DOI: http://doi.org/10.33257/PhChGD.25.7.1154


Volume 25, issue 7, 2024 year



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