Imperial College London
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DrSinaStapelfeldt

Faculty of Engineering, Department of Mechanical Engineering

Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 7076s.stapelfeldt

 
 
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Assistant

 

Mr Peter Higgs +44 (0)20 7594 7078

 
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Location

 

556City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rao:2022:10.1115/1.4055279,
author = {Rao, A and Sureshkumar, P and Stapelfeldt, S and Lad, B and Lee, K-B and Rico, RP},
doi = {10.1115/1.4055279},
journal = {Journal of Engineering for Gas Turbines and Power: Transactions of the ASME},
pages = {1--11},
title = {Unsteady analysis of aeroengine intake distortion mechanisms: vortex dynamics in crosswind conditions},
url = {http://dx.doi.org/10.1115/1.4055279},
volume = {144},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The formation of a ground vortex and its ingestion into an aero-engine intake under crosswind conditions play a significant role in the aerodynamic excitation of the fan. Using steady and unsteady numerical simulations, an analysis of the dynamics of several distortion features is presented. For a simplified intake at high crosswind velocities, there is a substantial movement of the ingested ground vortex at the aerodynamic interface plane (AIP). The ingested ground vortex follows a specific trajectory while varying both in size and strength. The transition from a periodic to an aperiodic regime of the intake distortion at the AIP occurs as the crosswind velocity is increased. Circumferential mode decomposition shows that the largest amplitude of the distortion occurs at the first circumferential mode, and the amplitudes of the higher modes decrease monotonically. Furthermore, the amplitude of the spatial harmonics is time-dependent, which may be an influential feature at the time of assessing fan forced response.
AU  - Rao,A
AU  - Sureshkumar,P
AU  - Stapelfeldt,S
AU  - Lad,B
AU  - Lee,K-B
AU  - Rico,RP
DO  - 10.1115/1.4055279
EP  - 11
PY  - 2022///
SN  - 0742-4795
SP  - 1
TI  - Unsteady analysis of aeroengine intake distortion mechanisms: vortex dynamics in crosswind conditions
T2  - Journal of Engineering for Gas Turbines and Power: Transactions of the ASME
UR  - http://dx.doi.org/10.1115/1.4055279
UR  - https://asmedigitalcollection.asme.org/gasturbinespower/article/144/12/121005/1145666/Unsteady-Analysis-of-Aeroengine-Intake-Distortion
UR  - http://hdl.handle.net/10044/1/99604
VL  - 144
ER  -
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