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

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

Jun 09, 2023 368 likes •540 views

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 (APUs,

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SLIDE 1

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

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SLIDE 2
  • Aircraft Systems / Thermal

Management

– Mechanical Systems (APU’s, undercowling, etc.) – Ice Protection – Avionics / Electronics Systems – Fuel systems – Heat Exchangers – Other Conjugate Heat Transfer

Application Areas (1/3)

Surface Wrapping Robust Prism Layers In-plane Conduction Eulerian Multiphase Lagrangian Multiphase Liquid Film Conjugate Heat Transfer Automatic Imprinting Fan Models

Ice Protection / Collection Efficiency Avionics Cooling Engine Thermal Management

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SLIDE 3
  • Propulsion Systems

– Pumps – Rocket Motor, Ramjet, & Scramjet – Compressors, Fans, Turbines – Combustion, sprays, chemistry – Inlets & nozzles – Fuel systems, sloshing

Application Areas (2/3)

Automatic Conformal Meshes Motion Models Harmonic Balance Gas, Particle, Surface Reactions Erosion Models Morphing Boundaries Cartesian Trim-Cell Meshes AUSM+ FVS Continuity Convergence Accelerator

Turbomachinery Supersonic Combustion Solid Rocket Motors

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SLIDE 4
  • Aerodynamics

– Subsonic Through Hypersonic – Aeroacoustics – Store Release – Stage Separation – High-Lift Devices – Plume Effects

Application Areas (3/3)

Polyhedral Mesh Turbulence Models Transition Models Tightly-Coupled FSI Mesh Morphing Solution Mapping GSI / Solution Driver Overset Mesh Mesh Adaptation

High-Speed Aerodynamics Fluid-Structure Interaction High-Lift Aerodynamics

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SLIDE 5

Fidelity Systems-Level Modeling Optimization

Industry Analysis Needs / Trends

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SLIDE 6

Fidelity System s-Level Modelin g Optimiz ation

Complex Geometry

Solid 3.3 M Polyhedral Cells Fluid 7.5 M Polyhedral Cells

  • CAD Exchange
  • Surface wrapper
  • Automated Mesh Parameters
  • Parts-based Meshing

N E W : A u t

  • m

a t i c E d g e P r

  • x

i m i t y R e f i n e m e n t

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SLIDE 7
  • RANS, LES, DES
  • Trimmed Mesher
  • Segregated and Coupled Solvers

Transient Analysis

Fidelity System s-Level Modelin g Optimiz ation

Eurocopter: 30x solver speed-up over in-house density-based solver TLG Aerospace: Unsteady buffeting behind rocket payload fairing

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SLIDE 8
  • State-of-the-art motion modeling
  • STAR-CCM+ unique formulation for

flexibility and accuracy

  • Automatic hole-cutting

Overset Mesh

Fidelity System s-Level Modelin g Optimiz ation

N E W : M u l t i p l e O v e r l a p p i n g R e g i

  • n

s

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SLIDE 9
  • Steady-state

– Broadband noise

  • Transient

– Source capture – Mid-Field Prediction – Resonance

  • Farfield Propagation

– FW-H

Aeroacoustics

Fidelity System s-Level Modelin g Optimiz ation

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SLIDE 10
  • Blade Element Method

– Orders of magnitude less expensive than transient – Thrust (collective pitch) and moment (cyclic pitch) trimming

  • Propellers, rotors, fans

Virtual Blade Model

Fidelity System s-Level Modelin g Optimiz ation

Fixed Rotor Trimmed Rotor

N E W : T r i m m a b l e B l a d e E l e m e n t M e t h

  • d

( B E M )

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SLIDE 11
  • Three-dimensional

– Collection Efficiency – Conjugate Heat Transfer – Runback – Ice Accretion

  • One Model / Multiple Analyses

Ice Accretion

N E W : I c e A c c r e t i

  • n

/ M e s h M

  • r

p h i n g

Collection Efficiency

Baseline geometry Predicted Ice Shape N E W : F l u i d F i l m F r e e z e / T h a w

Fidelity System s-Level Modelin g Optimiz ation

Experimental Ice Shape

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SLIDE 12
  • 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,

  • r solid/solid interface

CoSimulation

Fidelity System s-Level Modelin g Optimiz ation

8x Speed Up for full-flight transient thermal

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SLIDE 13
  • Understand sensitivity of the

solution to parameter variations

– Geometry changes – Mesh changes – Boundary condition changes

  • Drive optimization algorithms
  • Provides design insight

– Effective for many design variables

  • Future: Error estimates for mesh

refinement

Adjoint Solver

Fidelity System s-Level Modelin g Optimiz ation

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SLIDE 14
  • 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

Optimate+

Fidelity System s-Level Modelin g Optimiz ation

Baseline Optimized

Outlet CO reduction due to injector optimization Improved cruise L/D due to control surface location

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SLIDE 15
  • CD-adapco continues to innovate the

CAD-to-Solution capabilities of STAR- CCM+

  • Addressing the needs and trends

identified by the industry

– Increased fidelity of solutions

  • Geometry/Mesh
  • Physics
  • Numerics

– Simulating systems – Design exploration and optimization

Summary

Fidelity Systems- Level Modeling Optimization

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SLIDE 16

Questions?