### 6.1.1. Abbreviations Used in this Document

Abbreviation | Expanded Form
--- | ---
CEL | CFX Expression Language
CHT | Conjugate Heat Transfer
EO | Engine Order (inverse of the time required for an engine component to complete a 360° rotation)
FT | Fourier Transformation
HA | Harmonic Analysis
HB | Harmonic Balance
IGV | Inlet Guide Vane
PT | Profile Transformation
STT | Single-sided Time Transformation
TBR | Transient Blade Row
TRS | Transient Rotor Stator
TSPP | Time Steps Per Period
TT | Time Transformation

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