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Computational Fluid Dynamics (CFD) has played an important role in the design of aircrafts over the past two decades. Wind tunnel experiments are being increasingly replaced with simulations based on CFD. Entropic Lattice Boltzmann Method (LBM) is an emerging technique for the simulation of fluid flows to determine various aerodynamic characteristics of aircrafts. LBM achieves high levels of accuracy and reliability, and scales linearly with the available computational power. In this talk, an overview of innovations embedded in SankhyaSutra's LBM technology will be discussed. We will also demonstrate the potential of LBM using multiple examples from Aerospace & Defense Industry including:

  1. Accurate prediction of near stall behavior
  2. Aeroacoustic analysis of both near and far-field data
  3. Transonic flows involving the shock-vortex interactions
  4. Dynamic derivatives computation from transient flow simulations
  5. Kinematic and dynamic interaction of geometries with the fluid flow e.g.rotor-simulation and store separation With these features, LBM can open up new opportunities for design optimization.

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