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- W3208314699 abstract "In this article, the design of the heat shield of the afterburner chamber of the aircraft turbofan engine is proposed, which allows to improve its characteristics. This design makes it possible to change the material of the heat shield from deformable al-loys to heat-resistant cast alloys with higher operating temperatures and lower density. Based on this, a 3D solid-state geomet-ric model of the afterburner with an upgraded heat shield was developed. The hydraulic calculation of the afterburner and its cooling channel is carried out according to the engineering method. At the same time, the burning process in the afterburner was simulated in full forced mode using the Ansys CFX software package. The data obtained because of modeling and engi-neering calculations are analyzed and compared with each other by the flow rate of air passing through the gaps between the sections of the heat shield for its cooling. As a result of the calculation, the integral characteristics of the afterburner and the de-veloped design of the heat shield are obtained. To check the efficiency and operability of the resulting design, the refining thermogasodynamic calculations of the engine with the upgraded afterburner were carried out on two typical engine operating modes: maximum and full forced. To assess the impact of changes in the characteristics of the upgraded afterburner on the main characteristics of the turbofan engine using the DVIGw simulation system. As a result of the calculations, it is obtained that the use of a heat shield of a promising design allows you to reduce the weight of the screen itself by 9% and increase the thrust of the entire engine by 1% at maximum and full forced modes in general." @default.
- W3208314699 created "2021-11-08" @default.
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- W3208314699 date "2021-01-01" @default.
- W3208314699 modified "2023-09-24" @default.
- W3208314699 title "DESIGN OF THE COOLING LINER OF THE AFTERBURNER COMBUSTION CHAMBER OF THE MODERN TURBOFAN ENGINE" @default.
- W3208314699 doi "https://doi.org/10.15593/2224-9982/2021.65.02" @default.
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