Event Tag: DOD's top technology modernization priorities

HyTASP Technical Committee Hypersonics Webinar (AIAA Member Exclusive)

Featuring Special Guest Lecturer, Andrew Neely, Associate Dean for Research Engagement, UNSW Canberra.

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The Impact of Fluid-Thermal-Structural Interactions on Hypersonic Vehicle Performance.

Aerothermodynamic heating is an unavoidable consequence of high-speed flight. This presents design challenges for hypersonic vehicles that must be understood and addressed. Even at moderate hypersonic Mach numbers, elevated structural temperatures can distort the airframe of a vehicle, its control surfaces, and propulsion flow paths, degrading performance and reducing life. Multifidelity simulation approaches must be optimized for an appropriate balance between efficiency and accuracy, depending upon their application in the design cycle. Detailed validation cases are required to build confidence in these approaches but these data sets, whether from ground-based or flight experiments continue to be limited. This webinar will explore these challenges and discuss recent experimental approaches developed at UNSW Canberra to build confidence in numerical design tools.

Hypersonics Challenges (Member Exclusive Webinar)

Featuring Special Guest Lecturer, Olivier Chazot, professor and head of the Aeronautics and Aerospace Department at the Von Karman Institute for Fluid Dynamics (VKI).

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Hypersonics offers many advantages for aerospace applications in civil transport, space access, vehicle reusability, or strategic defense. However, a hypersonic regime is extremely demanding for vehicle design and those solutions need to be developed over the severe flight conditions it imposes. Aerothermodynamic phenomena at hypervelocity need to be better understood as they have a significant impact on the hypersonic vehicle design. This is especially true for their optimization, which is hardly addressed since such development is conducted with a conservative, or, more frequently, overconservative approach. While a number of active research programs are still dedicated to those investigations, this prevents us from benefiting from the full potential of hypersonic flight.

To reveal these challenges the presentation will give an overview of hypersonic flows and how they affect aerospace missions. The articulation of testing methodologies in high enthalpy and plasma facilities with high fidelity CFD tools for the study of critical aerothermodynamic phenomena in very high-speed flows will be discussed. Finally, the development from ground testing research to real-flight situation for the design of hypersonic systems and aerospace applications will be presented.

Supporting Hypersonic Flight Through UCAH and Research (Member Exclusive Webinar)

Featuring Special Guest Lecturer, Rodney D. W. Bowersox, Associate Dean for Research and Ford Professor, Aerospace Engineering, Texas A&M University, TEES Executive Director, OUSD JHTO University Consortium for Applied Hypersonics

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This webinar is brought to you by the HyTASP Technical Committee and is offered exclusively to AIAA members. Want to learn more about the benefits of AIAA membership?

Join Dr. Rodney Bowersox as he presents an overview of the OUSD Joint Hypersonics Transition Office sponsored University Consortium for Applied Hypersonics (UCAH). UCAH is envisioned as a collaborative inclusive network of universities, government, industry, and national laboratories collaborating to deliver time-sensitive applied hypersonic research and prototype solutions to the DOD. The consortium membership includes 80 universities, 76 industries, and 8 national labs, FFRDCs and UARCs. A description of the organization structure and engagement opportunities is provided.

Additionally, Bowersox will present an overview of the hypersonic turbulent aerothermochemistry research at Texas A&M University. The focus of the research is to extend modeling to include mechanical, thermal, and chemical non-equilibrium effects. Three examples are discussed: (1) 2-D Mach 5 flow with pressure gradients, (2) 2-D Mach 6 flow with thermal non-equilibrium plasma, and (3) the BOLT II Flight Test in Memory of Mike Holden, which will produce a 3-D Mach 6 boundary layer with pressure gradients, non-iso-thermal walls, and a complex transition process.

AIAA Webinar: A Brief History of Modern Hypersonics, Or How Did We Get Here?

Featuring Special Guest Lecturer, Mark J. Lewis, AIAA Past President and Executive Director of NDIA’s Emerging Technologies Institute (ETI)

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This event is offered exclusively to AIAA members. Want to learn more about the benefits of AIAA membership?

The development of hypersonic systems is one of the Department of Defense’s top technology modernization priorities, with multiple programs across each of the military services and defense science agencies aimed at delivering practical high-speed systems at scale. Even at the basic research level, the United States has ramped up its efforts in hypersonic flight, engaging directly with universities on an unprecedented scale. Yet, just a few years ago, hypersonics was viewed by many in the defense leadership as a distant capability, with promises that often exceeded delivered performance; programs in the past tended to start and stop with a frustratingly cyclical regularity, negatively impacting industrial capacity and workforce preparation. Now the United States seems to be on a steady consistent course to develop and produce a range of hypersonic systems.

This talk will review developments in recent years that have taken hypersonics from the fringes of defense science and technology to front and center of the mainstream defense research and engineering. This presentation also will review some the key technical and programmatic developments that have led to the current status, including both successes and failures, as well as address the underlying question of why this time it’s different.

HyTASP Technical Committee Hypersonics Webinar (AIAA Member Exclusive)

Featuring Special Guest Lecturer, Ali Gülhan, German Aerospace Center (DLR e.V.)

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This event is offered exclusively to AIAA members. Want to learn more about the benefits of AIAA membership?

Challenges and of Hypersonic Flight Experiments using Sounding Rockets

In this webinar Ali Gülhan, German Aerospace Center (DLR), will discuss how high-quality validation data that is representative of the real flight environment is necessary for the simulation-based design of flight hardware. Since ground testing facilities have limitations to duplicate the flight environment and numerical tools still have shortcomings in modelling high temperature gas phenomena and gas-surface interaction in such environments, availability of flight data is essential. A complementary validation approach using ground and flight testing for gathering reliable data and validation of numerical tools also is required. Gülhan will explain how simulation of the hot hypersonic flight environment in ground facilities is limited and requires data from further flight experiments. Hypersonic flight experiments by means of multistage sounding rocket configurations are seen as the most cost-efficient options to gather valuable flight data.