Main Catalog Aviation and Rocket-Space Engineering Aircraft Dynamics, Ballistics, Motion Control

Numerical simulation of the combustion products flow of energy condensed material in the flow path considering the erosion effect

Authors: Gogol D.V., Koptev I.I.
Published in issue: #1(78)/2023
DOI: 10.18698/2541-8009-2023-1-860
Category: Aviation and Rocket-Space Engineering \| Chapter: Aircraft Dynamics, Ballistics, Motion Control
Keywords: power condensed matter, computational fluid dynamics, intra-ballistic characteristics, numerical simulation, ablative coating, power propulsion plant, high-temperature combustion products, flow losses
Published: 16.02.2023

The problems of numerical modeling of flow in channels of complex and time-varying geometry, as well as the relevance of calculating losses in the flow paths of engines have been investigated. The law of ablative Vieille’s velocity is studied, the possibility of its application in the problem under consideration is considered. Numerical modeling of the flow of high-temperature combustion products of an energetic condensed material in a channel of a complex time-varying shape with stagnant zones in the ANSYS Fluent program complex has been performed. Based on the calculation results, the errors in determining the flow rate at different stages of engine operation have been evaluated and the flow diagrams in the time-variable gas path have been analyzed.

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