Analysis of electromagnetic propagation inside harsh environments like compressors in jet engines, that are close to turbine blades, faces several challenges due to various design complexities. The jet engine environment exhibits random behaviour due to the presence of moving metallic parts. The complex geometry environment combined with inhomogeneous volumetric target render traditional analytical and simulation modelling techniques highly inefficient. Therefore, a statistical electromagnetics-based approach is proposed for efficient analysis of electromagnetic propagation inside such harsh jet engines to establish a communication channel inside the environment. An innovative dynamic simulation approach inspired by analysis of mechanically stirred reverberation chambers and a novel statistical excitation approach are introduced to solve the complex jet engine environment. Statistical excitation method is applied to develop an equivalent model for the fields generated by a fixed excitation inside a jet engine with dynamic rotating blade. Hence, the jet engine is considered as a static system without blade rotation, but with a random excitation. The dynamic and static systems have been compared using full wave simulation method and numerical methods. The results proved that there is a statistical equivalence between the dynamic and the static systems
Dr. Aparna Krishna is a Sr. Research Fellow in Electrical Engineering department at Kuwait University. In 2018, she has received her doctorate from Qatar University for her dissertation " Efficient EM Analysis and Design Techniques in Jet Engines ", which was supervised by Dr. Tamer Khattab. She has an M.E. in Communication systems from Anna University, Chennai, India and the B.Tech. in ECE from Calicut University, Kerala, India. Her doctoral research focused on the analysis of EM propagation inside harsh metallic environment to establish a communication channel inside such environment. During her PhD, she had received Qatar University Graduate Research Award. She has published her research findings in reputable international journals, and conference proceedings. Dr. Krishna's current research focuses on the performance analysis and design of new 5G waveforms.