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Research Areas
Electromagnetics
- Theoretical and Computational aspects of quasi-static electric fields and their application to real life problems
- Dynamic fields associated with Lightning discharge
- High frequency response of coils and windings
- Corona generated EMF
Lightning
- Modeling of Lightning
- Lightning protection -
- Modelling of the attachment process and modelling of attachment to aircrafts
- Investigations on the Lightning Surge response
- Lightning generated fields in soil
- Simualtion of the strike to a transmisson line using a self-consistent lightning return stroke model
Major Computer Codes Developed
3D Charge Simulation Method based code for simulation of lightning attachement to rectangular and cylindrical buildings with masts --> Electrostatic field computation and Simulation of Upward Leader for attachment
2D Surface Charge Simualtion Method based code for axi-symmetric problems --> Electrostatic field computation
3D Surface Charge Simualtion Method and Classical Charge Simulation Method based codes for conductors --> Electrostatic field computation for corona inception using critical avlanche criterion
3D Code for magnetic flow measurements --> Ambient field is calculated by Magnetic Charge Method and Induction is evaluated by by the Finite Element Method using 27 node brick element
3D Time Domain Electric Field Integral Equation Solver for Thin-Wire Geometry over perfect ground (without wire junction) --> proximity effects and distributed RL loading are considered
2D Axisymmetric Time Domain Electric Field Integral Equation Based Model for Simulating Lightning Return Stoke --> Macroscopic physical model
Distributed Circuit Model extractor for simulating the induction
to building steel and electrical wires including external connections --> Incient field is evaluated from Engineering Models for the Return Stroke
2D Axisymmetric Finite Volume Method (on quadrilateral grid) --> Thermal and Electric field calculation --> grading electrodes (capacitive grading) and convective boundary condition are handled
Old Codes: 2D axi-symmetric generalised FDM, FDTD for full wave solution, Distributed Network Model Extractor for transient resposne of vast grounding system in 2-layer soil model, 2D Axi-symmetric CSM for saturation charge calculation on dielectric interface, Impedance Network Method for Transient Current Distribution on Surfaces.......
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