The commercial aviation sector is seeking to reach net zero CO2 emissions by 2050, with sustainable fuel (SAF) being the most important lever. However, SAF currently limited ASTM specifications a maximum of 50%v blending conventional jet fuel. One reason for current blend limit motivation maintain o-ring swelling consistent 100% petroleum This work explores relationships between components, mod...

In order to achieve the goal of limiting global warming 1.5°C, also growing aviation industry needs take measures reduce their greenhouse gas emissions. Various renewably sourced fuels can significantly emissions and most them, except for example liquid hydrogen or LNG, be used in existing infrastructure without airport aircraft modifications. As these fuel types are not (yet) produced at comme...

Atmospheric turbulence causes most weather-related aircraft incidents. Commercial aircraft encounter moderate-or-greater turbulence tens of thousands of times each year worldwide, injuring probably hundreds of passengers (occasionally fatally), costing airlines tens of millions of dollars and causing structural damage to planes. Clear-air turbulence is especially difficult to avoid, because it ...

Non-volatile Particulate Matter (nvPM) from aircraft gas turbine engines are harmful to both human health and the environment, but can be significantly reduced by using low aromatic Sustainable Aviation Fuel (SAF). As part of Horizon 2020 funded JETSCREEN (JET fuel SCREENing optimisation platform for alternative fuels) project, nvPM gaseous emissions were characterised regulatory compliant samp...

The civil aviation sector plays an increasingly significant role in transportation sustainability the environmental, economic, and social dimensions. Driven by concerns of sector, more electrified aircraft propulsion technologies have emerged form a very promising approach to future sustainable decarbonized aviation. This review paper aims provide comprehensive broad-scope survey recent progres...

In aviation, there is currently a lack of accurate and timely situational information, specifically weather data, which is essential when dealing with the unpredictable complexities that can arise while flying. For example, weather conditions that require immediate evasive action by the flight crew, such as isolated heavy rain, micro bursts, and atmospheric turbulence, require that the flight c...

Regression problems on massive data sets are ubiquitous in many application domains including the Internet, earth and space sciences, and aviation. Support vector regression (SVR) is a popular technique for modeling the inputoutput relations of a set of variables under the added constraint of maximizing the margin, thereby leading to a very generalizable and regularized model. However, for a da...

Flow control—the control of turbulence and turbulent flows, in particular— may be likened to the exercise of cupping water between two arthritic hands: frustratingly difficult and, at best, only partially successful. Harder still, innovative control concepts that are eventually brought to fruition in a laboratory setting face the additional, often major, obstacle of being translated into practi...

F lying in a small piston-engine plane bears little resemblance to flying in a commercial jet. There are no lines at the airport, no baggage checks, and often less legroom once you duck inside the cabin. You can feel every bump in the tarmac as the plane heads down the runway, every rumble of the engine. Once you are aloft there's no denying the improbability of flight; the low cruising altitud...