Abstract
The hard landing of the spent stage of promising launch vehicles (LV) in the designated areas of the fall leads to the collapse of the structure, the spillage of the remnants of the guaranteed fuel reserve, the outbreak of fires, and, as a result, require large expenditures for the complete elimination of man-made consequences. Residues of the guaranteed fuel are additional stocks of propellant components in the rocket blocks of the stage of LV, designed to compensate for the disturbing factors acting in flight on the LV. They are characterized by carcinogenic and mutagenic effects on the environment. The article considers the issue of extraction of unprocessed residues of guaranteed fuel. An experimental stand and a program for conducting experiments have been developed to study the extraction process. The purpose of the study is to conduct a comparative analysis of the results of mathematical modeling and physical modeling. Based on the results of the physical experiment, a mathematical model, and the results of a comparative study of two types of models are presented: The calculated heat carrier (HC) temperatures at the experimental model setup (EMS) inlet (according to the first law of thermodynamics and the Navier-Stokes equations) and the measured HC temperature at the EMS inlet during experiments were compared.
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