Numerical modeling of the flame tube operation in the cooling system of the air-jet engine combustion chamber

Authors: Batenin I.A.
Published in issue: #8(37)/2019
DOI: 10.18698/2541-8009-2019-8-516
Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts
Keywords: ramjet engine, combustion chamber, flame tube, film cooling, mathematical modeling, fluid and gas dynamics, cooling jacket, air intake
Published: 04.09.2019

This article presents a numerical simulation of a perforated flame tube operation in a system of film cooling of a combustion chamber of an air-jet engine using liquid fuel. The influence of the air flow supplied to the flame tube and its temperature on the overall gas-dynamic flow pattern is analyzed. The fields of gas parameters distribution (velocity, pressure, temperature) for various flow regimes in the flame tube are constructed. As a result of the calculations, the nature was revealed of the distribution of the air flow supplied to the cooling film along the combustion chamber under various modes of operation of the flame tube. The results of the study can be used to optimize the design of the film cooling system of the combustion chamber of an air-jet engine.

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