STAR-CCM+ Capabilities for Aerospace & Defense Deryl Snyder, - PowerPoint PPT Presentation

STAR-CCM+ Capabilities for Aerospace & Defense Deryl Snyder, Ph.D.

Application Areas (1/3) Surface Wrapping • Aircraft Systems / Thermal Robust Prism Layers Management In-plane Conduction – Mechanical Systems (APU’s, undercowling, etc.) – Ice Protection – Avionics / Electronics Systems – Fuel systems – Heat Exchangers Engine Thermal Management – Other Conjugate Heat Transfer Eulerian Multiphase Conjugate Heat Transfer Lagrangian Multiphase Automatic Imprinting Liquid Film Fan Models Ice Protection / Collection Efficiency Avionics Cooling

Application Areas (2/3) • Propulsion Systems Automatic Conformal Meshes – Pumps Motion Models Harmonic Balance – Rocket Motor, Ramjet, & Scramjet – Compressors, Fans, Turbines – Combustion, sprays, chemistry – Inlets & nozzles – Fuel systems, sloshing Turbomachinery Gas, Particle, Surface Reactions Cartesian Trim-Cell Meshes Erosion Models AUSM+ FVS Morphing Boundaries Continuity Convergence Accelerator Supersonic Combustion Solid Rocket Motors

Application Areas (3/3) Polyhedral Mesh • Aerodynamics Turbulence Models – Subsonic Through Hypersonic Transition Models – Aeroacoustics – Store Release – Stage Separation – High-Lift Devices – Plume Effects High-Lift Aerodynamics GSI / Solution Driver Overset Mesh Mesh Adaptation Tightly-Coupled FSI Mesh Morphing Solution Mapping High-Speed Aerodynamics Fluid-Structure Interaction

Industry Analysis Needs / Trends Fidelity Systems-Level Modeling Optimization

Complex Geometry • CAD Exchange • Surface wrapper • Automated Mesh Parameters • Parts-based Meshing Fluid 7.5 M Polyhedral Cells Solid 3.3 M Polyhedral Cells Fidelity System s-Level Modelin Optimiz e g g d E c i t a ation m t o n t e u m A e : W n f i e E R N y t i m i x o r P

Transient Analysis Eurocopter: 30x solver speed-up over in-house • RANS, LES, DES density-based solver • Trimmed Mesher • Segregated and Coupled Solvers TLG Aerospace: Unsteady buffeting behind rocket payload fairing Fidelity System s-Level Modelin Optimiz g ation

Overset Mesh g n i p p a l r e v O e l p t i l u M s n : W o i g E e N R • State-of-the-art motion modeling • STAR-CCM+ unique formulation for flexibility and accuracy • Automatic hole-cutting Fidelity System s-Level Modelin Optimiz g ation

Aeroacoustics • Steady-state – Broadband noise • Transient – Source capture – Mid-Field Prediction – Resonance • Farfield Propagation – FW-H Fidelity System s-Level Modelin Optimiz g ation

Virtual Blade Model • Blade Element Method – Orders of magnitude less expensive than transient – Thrust (collective pitch) and moment (cyclic pitch) trimming • Propellers, rotors, fans Fidelity System e s-Level d a l B e l b Modelin a ) m M m E B r i T ( Optimiz d : g W o h E t e N M ation t n e m e l E Fixed Rotor Trimmed Rotor

Ice Accretion h s e M / n o i t e r c c A e c g I n : i W h p E r o N M • Three-dimensional – Collection Efficiency Experimental – Conjugate Heat Transfer Ice Shape Predicted Ice Shape – Runback Baseline – Ice Accretion geometry • One Model / Multiple Analyses m l i F d i u l F : W w E a h N T / e z e e r F Fidelity System s-Level Collection Efficiency Modelin Optimiz g ation

CoSimulation • Fluid-structure interaction – STAR-CCM+ to structural model at fluid/solid interface • Fluid/solid thermal – STAR-CCM+ to STAR-CCM+ at fluid/solid interface • Integration of sub-systems – STAR-CCM+ to STAR-CCM+ at fluid/fluid, fluid/solid, 8x Speed Up for full-flight or solid/solid interface transient thermal Fidelity System s-Level Modelin Optimiz g ation

Adjoint Solver • Understand sensitivity of the • Provides design insight solution to parameter variations – Effective for many design variables – Geometry changes • Future: Error estimates for mesh – Mesh changes refinement – Boundary condition changes • Drive optimization algorithms Fidelity System s-Level Modelin Optimiz g ation

Optimate+ Outlet CO reduction due to injector optimization • STAR-CCM+ Add-on – Design Exploration – Design of Experiments – Robustness Analysis – Optimization • Integrated into the STAR-CCM+ CAD-to-Solution process • Designed for high-cost objective functions like CFD Improved cruise L/D due Fidelity System to control surface location s-Level Baseline Optimized Modelin Optimiz g ation

Summary • CD-adapco continues to innovate the CAD-to-Solution capabilities of STAR- CCM+ Fidelity • Addressing the needs and trends Systems- identified by the industry Level – Increased fidelity of solutions Modeling • Geometry/Mesh Optimization • Physics • Numerics – Simulating systems – Design exploration and optimization

Questions?