HISST 2024

Biography

Dr Smart is a world leader in scramjet design with particular interest in reusable space launch. He graduated with a Bachelor of Mechanical Engineering from The University of Queensland (UQ) in 1985 and completed a PhD at NYU-Poly in 1995. He then spent 10 years as a research scientist in the Hypersonic Airbreathing Propulsion Branch at NASA’s Langley Research Center. He returned to Australia in 2005 and spent 15 years in the UQ Centre for Hypersonics, being appointed Professor and Chair of Hypersonic Propulsion in 2007. In December 2019 he co-founded Hypersonix Launch Systems (Hypersonix). Hypersonix is an Australian company that is developing hydrogen fuelled scramjet technology for green access-to-space.

Hypersonic inlet designs have developed through a range of geometric configurations, from axi-symmertric, to two-dimensional to fully three-dimensional. The key to modern designs is to take advantage of the benefits of three dimensionality in ways that satisfy broader constraints such as capability, efficiency and startability. This talk will discuss current ideas in this area.

Biography

Dr. Andrew Brune has an undergraduate degree, a master’s degree, and a Ph. D. degree in Aerospace Engineering from Missouri University of Science and Technology. Dr. Brune is currently a senior engineer for aerospace flight systems in the Structural and Thermal Systems Branch at the NASA Langley Research Center in Hampton, Virginia and has been working at Langley since 2012, beginning with some internships and fellowships through NASA. Since working at NASA, he has been primarily working in the area of hypersonic and entry systems, with focus on thermal protection and other high-temperature material systems. He currently serves as a technical lead and subject matter expert in planning, design, integration, hardware development, modelling, and simulation for test and evaluation of these material systems in multiple arc-jet facilities, and currently supports the Low Earth Orbit Flight Test of an Inflatable Decelerator Project and Hypersonics Technology Project. His interests also include multidisciplinary simulations, high-temperature gas dynamics, and uncertainty quantification, management, validation, and calibration related to test methods, instrumentation, and analysis approaches.

Arc-jet test facilities are crucial for testing high-temperature material systems while simulating heating and flow environments experienced in atmospheric entry and hypersonic flight. This presentation will briefly provide background on simulation parameters and the unique capability of arc-jet facilities. The primary portion of the presentation will provide a general overview of an arc jet, including components, how it works, instrumentation, and types of testing. Technical challenges and considerations will also be discussed related to arc-jet modelling and uncertainties.

Biography

Dr. Sandy Tirtey is Rocket Lab’s Director of Global Commercial Launch Services and the company’s Launch Director.

Prior to Joining Rocket Lab, Dr. Tirtey did his PhD thesis in Hypersonics at the von Karman Institute (Belgium) and a Post-Doc in the group for Hypersonics at The University of Queensland (UQ) where he led the technical development of the SCRAMSPACE scramjet flight experiment from 2009 to 2013.

Dr. Tirtey joined Rocket Lab in 2013 as Vehicle Team Lead, where he supervised the development and construction of the Electron launch vehicle. In 2015, Dr. Tirtey took on the role of Vice President of Vehicle Systems, before becoming Rocket Lab’s Launch Conductor in 2016. In this role, Dr. Tirtey led mission operators through the successful launches of ‘It’s A Test’ and ‘Still Testing’ in 2017 and 2018, respectively.

Today, Dr. Tirtey is the Director of Global Commercial Launch Services and is based in Brisbane, Australia. In this role he supports small satellite operators globally to access orbit through frequent and reliable launch opportunities on the Electron launch vehicle. In February 2023, Dr Sandy Tirtey became Director of the newly created Rocket Lab Australia subsidiary.

HASTE is a suborbital testbed launch vehicle derived from Rocket Lab’s heritage Electron rocket. HASTE provides reliable, high-cadence flight test opportunities needed to advance hypersonic and suborbital system technology development.

Biography

Zonglin Jiang is a professor of the Institute of Mechanics, Chinese Academy of Sciences, a Distinguished Fellow of the International Shock Wave Institute. He graduated from the Department of Mechanics, Peking University and has engaged in gas dynamics research since then. Zonglin Jiang has won the AIAA 2016 Ground Test Award and authored about 300 refereed papers and published 3 academic monographs, including “Gaseous Detonation Physics and Its Universal Framework Theory” by Springer and “Theories and Technologies of Hypersonic Shock Tunnels” by Cambridge University Press.

High-enthalpy hypersonic tunnel is one of the critical technologies for hypersonics. The development of the JF-22 Hypervelocity Shock Tunnel will be reported, including the concept of the forward detonation cavity driver, the design principals of hypervelocity shock tunnels, key technologies and calibration results of the JF-22 Hypervelocity Shock Tunnel.

Biography

Hyungrok Do is a professor at the Department of Mechanical Engineering of Seoul National University (SNU). He earned B.S. from Mechanical and Aerospace Engineering at Seoul National University, Seoul, Korea, M.S. and Ph.D. degrees from Stanford University, CA, U.S. Prior to joining SNU, he was an assistant professor at University of Notre Dame, IN, U.S. His research interests cover hypersonic propulsion, high-pressure combustion, and laser diagnostics. He is a recipient of Air Force YIP (2015), GPPS Early Career Award (2019), and AIAA Best Paper Award (2016, 2022) for his high-speed combustion research.

Quantitative measurement in supersonic combustion environments is challenging due to the limited measurement time duration in the fast-volving compressible reacting flow. To monitor and understand the flow behaviors in supersonic combustors, high-sampling rate sensors and short-exposure optical measurements are essential. Spontaneous photon emission from excited species and laser-enforced fluorescence/scattering signals can provide quantitative property information such as density, temperature, composition, and local velocity when properly processed. Some possible combinations of recently developed optical measurement methods will be presented.

Biography

Gerald Hagemann started his professional career 1991 with DLR Lampoldshausen, German Aerospace Center, as Ph.D. student and later on as research scientist and team leader in the field of liquid rocket propulsion.
In 1999 he joint DaimlerChrysler Aerospace (that merged later into EADS Astrium Space Transportation and then Airbus Defense and Space) as project-, programme and later on as line manager for rocket propulsion technologies. He actively participated to the creation of Airbus Safran Launchers, now ArianeGroup. Within ArianeGroup, he holds the position as “Head of Liquid Propulsion” in the Technical Directorate, and Head of Site Ottobrunn. Gerald Hagemann holds a Ph.D. from University of Stuttgart in the field of rocket propulsion.

The presentation addresses research challenges for aerospace applications, and how through cooperation between industry and research partners these challenges are addressed. The discussion includes aerothermal challenges, but also material technology towards generative methods with applications where industrial standards in terms of machines are not (yet) available.
Application towards fullscale hardware and flight will be given.

Biography

Ming Dong, Professor of Institute of Mechanics, CAS. He received the PhD degree in fluid mechanics from Tianjin University, and worked there until 2021. During 2013-2014 and 2016-2018, he was working in Department of Mathematics, Imperial College London as an academic visitor and a Marie Curie Fellow, respectively. His main research interests include hydrodynamic instability, boundary-layer transition and turbulence theory. He is keen on revealing the intrinsic mechanism of flow motions by asymptotic techniques.

Surface roughness would influence hypersonic boundary-layer transition through the local receptivity and local scattering mechanisms, which are formulated by the high-Reynolds-number asymptotic analysis. The asymptotic theory is confirmed to be accurate by numerics, which leads to a transition-prediction model for hypersonic boundary layers with surface imperfections.