Dassault Systèmes’ SIMULIA blog explores how PowerFLOW, a Lattice Boltzmann Method (LBM)-based CFD tool, is being applied to fluid simulation challenges in military aircraft that traditional RANS-based approaches can find challenging to capture. Military aircraft operate across demanding flight conditions, including high angles of attack, supersonic speeds, and complex shock-flow interactions, where accurate time-resolved simulation is important.
The blog also discusses the analysis of open weapons bay operations, where significant pressure fluctuations and acoustic effects can occur. PowerFLOW can be coupled with Wave6 for vibroacoustic studies to assess vibration and noise impacts on aircraft components. Additional applications include rotorcraft and drone aerodynamics, such as blade-vortex interactions and wake behavior. For unmanned systems, the broader 3DEXPERIENCE platform supports the evaluation of aerodynamic, thermal, structural, and radar-signature considerations during early-stage design.
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