Hot streaks –more than hot air
Clarifying uncertainties whether shorter engines in aviation entail negative effects.
A numerical simulation was carried out and validated by experimental data based on three different clocking positions.
The ideal alignment of combustion chambers to the high-pressure turbine stage avoids harmful effects.
On the left side the hot streak is aligned with the stator vane leading edge (clocking one). In clocking two the hot streak is aligned with the stator passage. Eventually clocking three depicts hot streaks aligned with the stator leading edges and every second hot streak is aligned with the downstream located TCF leading edge. Finally, the results were experimentally validated.