High-fidelity optical turbulence simulation for long-range laser communication
1. Peta-scale direct numerical simulation of stably stratified turbulent flow
- Massively parallel direct numerical solver that scales well up to 10 billion cells and 10,000 CPU cores
- Understanding the fundamental spatial-temporal characteristics of intermittent turbulence
- Open source code Hercules
References:
- Comput. Fluids 2016 Paper [Doi][preprint]
- Nonlinear Proc. Geoph. 2015 Paper [Doi][preprint]
- Hercules Documentation
2. Construction of novel optical turbulence models using numerically generated turbulence dataset
- Construction of a comprehensive turbulence dataset using numerous DNS simulations
- Proposing a novel gradient-based turbulence model based on the DNS dataset
- Incorporating the new turbulence model into a mesoscale model and the numerical prediction agrees well with experiments
References:
3. Coupled mesoscale modeling and ray tracing framework for long-range wave propagation
- Efficient ray tracing method to predict the optical ray trajectory
- Incorporate the ray tracing code with mesoscale model to predict time-dependent long-range optical wave propagation
References:
The above research was conducted at North Carolina State University between 2013 and 2016, supported by funding from the Air Force Office of Scientific Research (AFOSR). |
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