Siemens Digital Industries Software was chosen to support the Clean Aviation Joint Undertaking, which will contribute to the development of simulation and testing that support sustainable aviation technologies.
Download this white paper to gain insight into a few of the challenges the aviation industry faces and the progress being made.
Accelerating green aviation
Accelerating green aviation requires innovation and that innovation is empowered by digital technology. The development of aeronautic hydrogen technologies goes far beyond the technology exploration that has been conducted up until now, with the goal of reaching commercial deployment in the next 20 years. It implies major changes impacting almost all the aeronautic engineering domains, like structures, systems, airworthiness, safety, operations, value chains, manufacturing, etc., generating unique and new aeronautic engineering challenges. It will require accelerating all the possible research and development (R&D) methods and tools to achieve industrial maturity quickly. Learn how Simcenter solutions help accelerate the transition to sustainable, climate-neutral aircraft.
Green aircraft design
Progress is being made with growing efforts toward green aircraft design. Due to mounting concerns about the aerospace industry’s impact on climate change, aviation companies are looking toward alternatives to fossil fuels to design green, or sustainable, aircraft. A few options to pursue include plant-based sustainable aviation fuels and electrification. A popular option has been hydrogen.
Hydrogen has a greater energy density than natural gas and gasoline and only produces water as a byproduct after combustion. However, there are numerous challenges in producing green hydrogen and designing hydrogen-fueled aircraft that must be overcome to allow widespread adoption of hydrogen as an aviation fuel.
Sustainable aviation fuels: a disruptive transition
The move to sustainable aviation fuels presents a disruptive transition in the industry. When facing novel applied technologies, like liquid hydrogen propulsion, simulation and testing must capture, measure and capitalize on all the relevant physical behavior (combustion, boil-off, flow regimes, buoyancy, material embrittlement, etc.). This requires knowledge of the underlying physics, formulation of new models, access to high-quality experimental results and expertise.
Accelerated development will demand even more efficient, combined and massive simulation computations, in addition to extensive testing capabilities. Therefore, a change such as the transition to sustainable aviation calls for ambitious initiatives in simulation and testing. A crucial tool in addressing these challenges will be the digital twin, which will aid in the design of next-generation hydrogen-powered aircraft and the green hydrogen producing facilities that power them.
Fuels with the best gravimetric and volumetric energy density are typically carbonated fuels with no noncarbonated alternatives. The climate neutrality of these fuels must be assessed considering their production and CO2 compensation. Sustainable aviation fuels (SAF) are following this option, using bio-sourcing and oil recycling to produce them, and adapting gas turbines and fuel systems to support them.
Novel structures and aerodynamics
Reaching the 2050 climate neutrality goal requires working in parallel on research and development (R&D) and reducing engineering time. This is where novel digital technologies combined with new methods and computing power could bring major benefits to the development of future climate-neutral aviation.
The adoption of hydrogen fuel (liquid or compressed) and the hybridization opportunities not only impact the propulsion system but also the complete aircraft structure. These opportunities include:
Hydrogen-powered aircraft integration
Blended wing body configurations
Dry wings configurations
Novel interactions with structures