The aerospace and defense (A&D) industry has been at the leading edge of the development and adoption of simulation technology since the introduction of computerized tools. The reason is simple: It works in a high-reward/high-risk design space, in which the cost of failure is too high. An engineering success like the Space Shuttle’s first manned flight would have been impossible without the extensive use of reliable and accurate computer simulations that guaranteed all systems and components were working correctly.

In this webinar series, we will explore how ANSYS simulation technology is used by the A&D industry to design and analyze a wide number of cutting-edge applications, and how simulation can help make these products better and safer.

Upcoming Webinars

Title: Predicting Laminar-Turbulent Transition with Low-Cost Methods

Wed, Oct 14th, 2020
11:00 a.m. EST

The reliable prediction of laminar-turbulent transition is one of the key physics challenges in the simulation and design of aeronautical components and systems. Transition can have a substantial effect on overall performance and safety margins of airplanes. Historically, transition prediction was based on solving stability equations, which track the evolution of instability modes to the point of non-linear breakdown. Even more fundamental — and thereby substantially more expensive — are methods based on non-linear stability analysis or sufficiently resolved LES/DNS.

Ansys’ development group has focused on the opposite end of the methods spectrum — namely RANS-based approaches. These add minimal computational expense to costly CFD simulations, which are fully compatible with highly parallelized solver technology. This webinar will spotlight such methods and discuss the latest extension of the underlying LCTM (Local-Correlation-based Transition Modeling) concept to an algebraic formulation for the aerospace and defense industry.


Electrothermal Simulations of High-Power Electric Machines for Reliable Electric Aircraft

Wed Dec 9th, 2020
11:00 a.m. EST

The aerospace industry is exploring a switch from hydrocarbon fuels to alternative forms of propulsion, including hybrid or fully electric propulsion. Multiphysics simulations are critical in reducing development costs and increasing the reliability and safety of electric powertrains.

A detailed electromagnetic model of the motor provides electromechanical metrics such as torque and heat losses for use in a conjugate heat transfer CFD model, so engineers can run thermal management system simulations. With bidirectional coupling between the magnetic and CFD solvers, engineers can predict demagnetization, thereby influencing the reliability of electric motor designs for electric aircraft.


Webinars on Demand

A Guided, Fluent Meshing Workflow for the A&D Industry

This webinar will explore the exciting new enhancements to Ansys Fluent meshing workflows featured in the Ansys 2020 R2. Through live demonstrations, discover how engineers from the aerospace and defense industries can raise their efficiency with task-based workflows, Mosaic-enabled meshing technology and a streamlined user interface to deliver more accurate results in less time.

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Analyzing Quadcopter Drone Propeller Noise Using Ansys CFD

Learn how to use Ansys Fluent to simulate the noise produced by a generic four-bladed quadcopter drone. Discover how sound analysis tools from Ansys VRXPERIENCE SOUND can be applied to the acoustic results to help assess psychoacoustic parameters associated with the perceived sounds.

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Better Designs for Supersonic Business Jets

Learn how Ansys is helping the A&D industry prepare a new chapter in supersonic commercial aircraft design. This presentation summarizes external aero nearfield sonic boom prediction on the NASA X-59 geometry as presented at the AIAA Sonic Boom workshop. We also discuss the Ansys supersonic panel flutter capability. Comparisons to NASA wind tunnel data are included.

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Overset Meshing Technology for the A&D Industry

A common difficulty in simulating CFD problems with large relative motion between components is how to adequately handle the mesh deformation. These problems have largely been handled through complicated remeshing or mesh smoothing methods. Overset meshing provides an alternative approach to these problems. Additionally, overset meshing may be useful for certain geometries that may be better represented by separate component meshes or for design exploration studies involving repetitive reconfiguration of parts. In this webinar, we discuss the basics of overset meshing in Ansys Fluent and present best practices. We will also review recent validation studies and novel example cases for external aerodynamics, projectile motion, store separation and marine applications.

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Entering a New Era: Using Simulation Technology for Aircraft Electrification

Join us for this free webinar that provides a detailed look at how cutting-edge simulation technology is radically advancing aircraft electrification. You will learn how pervasive engineering simulation aids in cost reduction and increased product reliability through digital exploration during the design and operation phases of product development cycle. Additionally, this webinar discusses simulation technologies that will help you model and develop electric aircraft components.

  • Learn how to use cutting-edge simulation solutions to slash development costs and boost product reliability.
  • Understand how to conduct in-depth digital exploration during key product development cycle phases.
  • Discover the latest tools and techniques for modeling and creating next-generation electric aircraft components.

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Improving Spacecraft Fuel Tank Design: Reducing Sloshing in Rockets

Join us for this free webinar that dynamically showcases ANSYS’ capabilities for simulating the physics of sloshing, including advanced preprocessing tools for geometry discretization (ANSYS SpaceClaim and ANSYS Fluent). Additionally, it spotlights ANSYS’ strong portfolio of solution methods for modeling turbulent multiphase flows and discusses insightful post-processing tools for handling flow physics (ANSYS EnSight). Lastly, the webinar applies selected real-world case studies, including examining the behavior of fuel sloshing within a spacecraft’s tank during launch and while in low-Earth orbit flight.

  • Learn how to simulate the physics of sloshing with sophisticated preprocessing tools for geometry discretization.
  • Discover powerful simulation solutions for modeling turbulent multiphase flows.
  • Harness cutting-edge post-processing tools for effectively handling flow physics.

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Radically Improving Engineering Productivity in the Aerospace and Defense Industry With ANSYS Fluent 2020 R1

This cutting-edge webinar explores how aerospace and defense industry engineers will significantly improve their productivity with exciting new enhancements featured in ANSYS Fluent’s 2020 R1 release. Through live demonstrations and success stories from early users, you will learn how Fluent substantially reduces hands-on development time and drastically boosts efficiency with a single-window, task-based workflow and a dynamic Mosaic-enabled meshing technology. Additionally, real-world case studies will highlight how Fluent’s upgraded proprietary numerics make tackling even the most challenging hypersonic problems seem easy.

Join us for this free webinar to learn how Fluent can take your day-to-day productivity to the next level.

  • Learn how Mosaic meshing technology combines the ease of automated meshing with the efficiency and accuracy of flow-aligned grids.
  • Understand how Fluent's new proprietary numerics stabilize and accelerate convergence for hypersonic flows.
  • Discover how Fluent's new adjoint workflow can automate your aerodynamic shape optimization problems.

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Unstructured Meshing Workflows for the Aerospace and Defense Industries

We will explore how the aerospace and defense industries can utilize ANSYS technologies for automated unstructured meshing workflows, including:

  • CAD Import and geometry preparation capabilities in ANSYS SpaceClaim
  • Watertight geometry workflow for task-based automated meshing for external flows
  • Fault tolerant meshing workflow for task-based automated meshing of models containing "dirty" CAD: using wrapper technology to speed complex meshing tasks
  • Validation examples of the new Mosaic Poly-Hexcore mesh topology

Presented by: Andy Wade
Andy Wade is a technical program manager in our meshing development unit. He has been with ANSYS for 14 years, having spent 13 years in technical services as an engineer. He has extensive experience working with CFD analysts and method developers using ANSYS software in a wide range of application areas with a focus on the aerospace and defense industries.

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Aircraft Engine Icing

Recent events of high-altitude turbofan engine malfunctions characterized by sudden power loss and flameouts have been attributed to ice crystal formation in the compressor core. The understanding of ice accretion on rotor/stator blades is paramount and needs to be accounted for and integrated into the gas turbine design process.

Designing optimal anti/de-icing systems requires detailed understanding of complex icing phenomena and their interaction with air flow and ingested particles. Regulatory certification processes are often underpinned with expensive ice tunnel and flight tests with limited data points. High-fidelity CFD/icing models can help engineers develop a better understanding of complex icing processes and design better systems at a fractional cost.

ANSYS icing solutions empower engineers with high fidelity CFD/icing models to account for ice accretion and flow interactions early in the design phase in a seamless manner while harnessing the power of high-performance computing. Attend this webinar to get an overview of ANSYS icing solutions with a focus on ice crystal formation in turbomachinery compressors.

Vinod Rao is a Senior Application Engineer at ANSYS, where he has been working for over six years on advanced aerospace, turbomachinery and automotive applications. His main areas of expertise include aeromechanics, aircraft icing, turbomachinery applications and aeroacoustics.

Shezad Nilamdeen is a Senior Developer at ANSYS. He has been working in CFD and turbomachinery icing physics for 10 years. He is the ANSYS representative and contact for the Engine Icing Working Group. Shezad holds a Masters degree in Mechanical Engineering from McGill University.

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Thermal FSI of a Sounding Rocket Through Atmosphere

Sounding rockets frequently contain scientific equipment that needs to survive the thermal consequences of re-entering the Earth’s atmosphere at hypersonic velocities. Traditional thermal protection systems have been designed using uncoupled simulation methods that consider the exterior aerodynamic heating and the interior thermal behavior separately, but this may cause simulation results to be incomplete and even misleading.

Join us for our upcoming webinar to discover how fluid–structure interaction (FSI) can provide a better understanding of thermal performance in aerospace and defense engineering

This webinar will consider a typical sounding rocket with simplified internal components subjected to atmospheric re-entry aerodynamic conditions. It will illustrate the capabilities and workflow approaches that can be used to evaluate the thermal performance using ANSYS structural and CFD simulation tools connected via the Ansys Systems Coupling environment.

Presented by: Walter Schwarz, PhD
Walter Schwarz is an engineering simulation expert with over 30 years of experience in the areas of flow modeling, heat transfer and turbulence. He is a lead application engineer for the ANSYS Customer Excellence (ACE) team. Dr. Schwarz received his Ph.D. in mechanical engineering (thermosciences group) from Stanford University. Before joining Fluent Inc. in 1996, Dr. Schwarz worked at Westinghouse in the nuclear industry, and was an assistant professor of mechanical engineering at Stevens Institute of Technology.

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The New Fluent Experience with Mosaic Meshing for the Aerospace and Defense Industries

We will explore how the aerospace and defense industries can optimize their current workflow and increase productivity with exciting new enhancements in the 19.2 release of ANSYS Fluent.

Through live demonstrations and success stories from early users, learn how Fluent reduces hands-on time and raises efficiency with a single-window, task-based workflow and Mosaic-enabled meshing technology:

  • Watertight geometries can be prepped and meshed in a single-window Fluent interface.
  • Task-based workflow guides you through the simulation process by presenting best practices in an organized interface.
  • New users learn faster, while experienced analysts gain efficiency.
  • Mosaic uses high-quality polyhedra to combine any type of boundary layer mesh with autogenerated hex mesh

Presented by: Luke Munholand, PhD
Luke Munholand, Ph.D. is a lead application engineer at ANSYS. For more than 14 years he has provided technical guidance to customers who seek maximum value for their simulation effort. Luke specializes in computational fluid dynamics for the defense and biotechnology areas.

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Addressing the Challenges of the Design of Hypersonic Vehicles with Simulations

The recent surge in the interest in hypersonic technology has highlighted the need to accurately and efficiently simulate these complex flowfields using CFD tools. Computer simulations for the design and analysis of hypersonic vehicles is critical since it is often impossible to reproduce the high-Mach number, high-enthalpy conditions in a wind tunnel.

Simulating the hypersonic flow regime with CFD tools presents several challenges, ranging from the accurate modeling of the complex physical phenomena, such as compressibility effects, shock-boundary layer interaction, high temperatures, dissociation and ionization of air, ablation of solid surfaces and, ultimately, magnetohydrodynamics effects, to the stabilization of the numerical algorithms used to solve the governing equations.

In this seminar we will show how ANSYS CFD tools are used to simulate high speed flows and to design hypersonic vehicles, by touching on the capabilities of the CFD tools and describing case studies.

Presented by: Valerio Viti
Valerio Viti is a A&D industry leader at ANSYS. Valerio has been with ANSYS for 12 years working in the application of CFD tools to the Aerospace and Defense, Power generation and HVAC industries. Valerio holds a PhD in Aerospace Engineering from Virginia Tech and a Masters in Aeronautics from The City University of London

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Multiphysics Simulation For The Aerospace Industry

Modern trends in the development of aircraft and defense vehicles, such as increased power density, miniaturization, lightweighting, advanced materials and environmental sustainability are driving the need for Pervasive Engineering Simulation. Upfront digital exploration and building of digital twins require a comprehensive simulation platform that enables the modeling of complex physical and physics-based interaction of systems. Robust, fast, scalable and versatile workflows for multiphysics simulations offer tremendous value to companies in their product development and operation cycles.

This webinar presents the ANSYS multiphysics solution specifically for the A&D engineer. We will highlight how the ANSYS solution works and showcase fluid-structure interaction (FSI) case studies and examples from the A&D industry.

Presented by: Sreedevi Krishnan
Sreedevi Krishnan is a computational fluid dynamics (CFD) application engineer at ANSYS. She has been with ANSYS for 10 years, working mostly with advanced automotive applications. Her main areas of expertise are volume of fluid (VOF) methods and FSI. Sree holds a Ph.D. in mechanical engineering from the University of Iowa.

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Addressing Challenges of High-Speed Vehicle Design Using Physics-Based Simulation Technology

In this webinar, we focus on the numerical study of the external aerodynamics of two cruise missile geometries. The first is a generic high-supersonic/low-hypersonic geometry. The study analyzes the main flow features to better understand the physical phenomena that govern the behavior of canard geometries at different angles of attack.

The second geometry is an aerospike. It uses an aerodynamic spike on the nose of the missile to offset the shockwave in front of the main body and effectively reduce pressure and temperature loads on the radome. The study explores the complex flow field around the missile and includes a sensitivity analysis.

Vinod Rao is a computational fluid dynamics (CFD) specialist at ANSYS, where he has been working for over six years on advanced aerospace, turbomachinery and automotive applications. His main areas of expertise include aeromechanics/fluid-structure interaction (FSI), compressible flows, aircraft icing and aeroacoustics.

Valerio Viti is an A&D industry lead at ANSYS. Valerio has been with ANSYS for 12 years working in the application of CFD tools in the aerospace and defense, power generation and HVAC industries. Valerio holds a Ph.D. in aerospace engineering from Virginia Tech and a master’s in aeronautics from City, University of London.

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Designing Safer Ships Using Simulation: Ship-Hull Stability Prediction by ANSYS CFD

As part of the certification process, marine surface vessels and industrial floating structures undergo rigorous stability tests to insure the maximum safety and operability under extreme weather conditions.

In this webinar, we will demonstrate how CFD analysis can be used to gain insight into the stability performance of a representative Navy vessel using ANSYS Fluent. The free surface effects on the vessel were simulated using the Volume of Fluid Method, while the vessel motion was resolved using the 6-DOF solver.

Presented by: Zoran Dragojlovic
Zoran Dragojlovic is a senior application engineer supporting ANSYS computational fluid dynamics (CFD) tools and related workflows as a part of ANSYS Customer Excellence (ACE) team. Zoran has over 20 years of engineering experience including nuclear energy research, semiconductor manufacturing process design and consulting. Since joining ANSYS in 2012, Zoran has been contributing to application support, training and mentoring.

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Improving the Design of Fuel Cells for the Aerospace and Defense Industry

Fuel cells can produce electricity from an external source of fuel and oxidizer. They are clean, quiet and highly efficient. Polymer electrolyte membrane (PEM) fuel cells (FCs) operate at lower temperatures than other types of fuel cells and are frequently employed in vehicles and personal mobility applications in the aerospace and defense industry. This webinar will focus on the application of the PEMFC module in ANSYS Fluent to both simple and complex fuel cell geometries to help understand the effects of geometric and operating parameters on device performance and thermal management.

Presented by: Kurt Svihla
Kurt Svihla is a senior application engineer at ANSYS with a Ph.D. in chemical engineering from Florida State University. He has worked with ANSYS computational fluid dynamics tools for more than 18 years and has supported clients in the nuclear, biotechnology and chemical process industries.

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Accurate Prediction of Panel Flutter Applicable to Supersonic or High Lift Flight: Results and Comparison to NASA Wind Tunnel Data

Avoiding flutter of an aircraft's skin is important for safe and robust operation. Traditional panel flutter prediction tools fall short for conditions where the boundary layer thickness varies. ANSYS’ fluid–structure interaction (FSI) capability accurately predicts panel flutter under the most challenging conditions. ANSYS simulation results will be compared to NASA supersonic wind tunnel data. The simple simulation process and surprisingly small computational requirements for accurate results will also be summarized. Prime applications for the ANSYS FSI capability include next generation supersonic transports heralded by NASA's (X-59) low boom demonstrator or high lift flight conditions of subsonic aircraft.

Presented by: Luke Munholand, Ph.D.
Luke Munholand, Ph.D. is a lead application engineer at ANSYS. For more than 14 years he has provided technical guidance to customers who seek maximum value for their simulation effort. Luke specializes in computational fluid dynamics for the defense and biotechnology areas.

Coauthor: Vinod Rao
Vinod Rao is a computational fluid dynamics (CFD) specialist at ANSYS, where he has been working for over six years on advanced aerospace, turbomachinery and automotive applications. His main areas of expertise include aeromechanics/fluid–structure interaction (FSI), compressible flows, aircraft icing and aeroacoustics.

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Reduced Order Modeling (ROMs) for Aerospace Industry

Assessing the performance of aircraft components with systems-level models has always been a part of the aircraft design process. A systems simulation is a collection of models, simulations and algorithms that predict how all the parts in a system will work together. The fidelity of the model improves if the detailed physics governing the performance of the components can be closely represented in the system model. However, the very nature of 3D modeling is time-intensive and not practical to incorporate in a full systems-level model you need to simulate a system in real time.

Reduced Order Models (ROMs) are mathematical simplifications of 3D models that preserve the essential information needed for system simulations. Solving a ROM for a given input can be orders of magnitude faster than solving a 3D model. This makes ROMs ideal for many applications, like design of experiments (DOE), systems simulations, digital twins and runtime generations of real-time applications..

This webinar will present an overview of ROM technology available with the ANSYS platform, along with some examples and a demo of the ROM workflow for CFD..

Presented by: Sreedevi Krishnan
Sreedevi Krishnan is a computational fluid dynamics (CFD) application engineer at ANSYS. She has been with ANSYS for 10 years, working mostly with advanced automotive applications. Her main areas of expertise are volume of fluid (VOF) methods and FSI. Sree holds a Ph.D. in mechanical engineering from the University of Iowa.

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Prediction and Remediation to Aircraft Icing via Simulations

Icing on aircraft surfaces, appendages, sensors and engines are safety-critical aspects of aircraft design that impact the whole supply chain. Achieving regulatory certification is a complex and time-consuming process involving simulation models, icing tunnels and flight testing. Recent regulatory changes and industry focus around high-altitude ice crystals and supercooled large droplets (SLD) have further challenged the design process and the time to market for new aircraft and technology.

ANSYS provides a unique combination of advanced computational fluid dynamics and icing simulation expertise in a common working environment. The solution captures real-world behavior in 3D, using the most efficient simulation workflow available and an extensive database of industry validation. In addition, the simulation outputs are designed to comply with the FAA’s Appendices C, D and O.

ANSYS icing simulation enables companies and engineers to develop products faster, test designs earlier in the development cycle, reduce the number of physical prototypes and produce a better solution than would be possible using traditional design methods.

Please join us for this webinar to learn about the capabilities and applications of ANSYS software for in-flight icing.

Presented by: Miraj Desai
Miraj Desai graduated with a bachelor’s and master’s in aerospace/Mechanical Engineering from Embry-Riddle Aeronautical University. After working in industry, he joined ANSYS in 2015 and has experience in external flow modeling with extensive experience with in-flight icing. Miraj is a regular attendee and participant of SAE AC-9C icing meetings and participates within AIAA committees to use simulation for aircraft certification.

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