Large Eddy Simulations for Next-Generation Digital Twin Engine Analysis
The objective of this work is to demonstrate the role of large eddy simulation (LES) in advancing next-generation digital twin frameworks for integrated engine analysis. LES provides insight into unsteady flow behavior and captures the transfer of turbulent energy and flow instabilities across multiple engine components, including compressors, combustors, and turbines. These capabilities are essential for accurately modeling complex multi-component flow interactions in realistic propulsion systems. This study presents results from the DoD HPCMP Frontier program, highlighting performance metrics, turbulence statistics, flow dynamics, and heat transfer characteristics obtained from LES of a reference engine configuration. We also evaluate the scalability and efficiency of LES on GPU-accelerated platforms, which enable practical use of high-fidelity simulations in large-scale engineering applications. Additionally, we examine the use of LES data to train reduced-order models that improve transient flow prediction and enable real-time digital twin capabilities. The integration of high-resolution simulation with reduced-order modeling offers a viable path for robust, efficient engine design and life-cycle management. This work is a collaboration between the Army Research Laboratory (ARL), the Naval Air Warfare Center Aircraft Division (NAVAIR), the University of Cincinnati, Cadence Design Systems, and Pratt & Whitney.
IMPACT
Accomplishment: Advanced the use of large eddy simulation (LES) within digital twin frameworks for integrated engine analysis, leveraging GPU-accelerated platforms to achieve scalable, high-fidelity modeling of multi-component flow dynamics; Result: Enabled accurate prediction of transient flow behavior and real-time diagnostics through reduced-order models trained on LES data – Accelerated propulsion system design, improved engine reliability, and enhanced mission readiness across the DoD.
PRESENTER
Bravo, Luis
luis.g.bravorobles.civ@army.mil
914-843-4278
DEVCOM Army Research Laboratory
CO-AUTHOR(S)
Powers, Russell
russell.w.powers2.civ@us.navy.mil
CATEGORY
Comp Fluid Dynamics
SECONDARY CATEGORY
GPU usage for HPC
SYSTEM(S) USED
Raider, Nautilus, Narwhal