I'm conducting some research on my bachelor's thesis on predictive maintenance and I have so far not been able to find a solution to the following question:
Which size of dust is more damaging to the engine when it comes to ingested dust?
So far I have found some papers covering the topic or moderately related to it but I can't seem to find a precise answer directly relating particle size and damage (i.e. from 200µm to 500 µm the damage is severe but under 200 µm much smaller damage is presented; for particles bigger than 1 mm no damage is presented as they do not enter the turbines)
I hope someone has found some insight on this topic. Thank you very much.