Instruments and apparatus for contacting diagnostics and their application in the investigation of high-temperature two-phase flows

At the present time, contacting and noncontacting (in particular, optical) diagnostic methods are used for the investigation of condensed combustion products of space system rocket (SSR) engines. All methods have their own merits and shortcomings. We note that in the history of investigating the high-temperature SSR combustion products, an overwhelming majority of the available results from the measurement of dispersed phase characteristics have been obtained using the contacting diagnostic methods.