Thermal state simulation of the rear gas turbine engine support during fire resistance tests

One of the key requirements for airplane gas turbine engine safety is compliance with FAR33.17 fire safety rules. Validation of the fire safety compliance is typically performed through fire testing. An experimental approach is quite expensive, performed at the final stage of gas turbine engine development and does not guarantee first pass yield without a preliminary numerical analysis. The article describes methodological recommendations for numerical assessment of an assembly thermal state under fire exposure from a calibrated burner to confirm fireproof requirements in accordance with FAR33.17. The study is focused on different approaches for burner fire simulation to obtain thermal state close to the experiment. Validation of the numerical results is performed on full-size experimental data of the rear AGTE support under fire exposure.
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