Numerical study of the interaction between a sonic transverse jet with an oblique shock wave in a supersonic crossflow

A series of numerical simulations was executed using the high-performance cluster at TU Delft's Aerospace Faculty. The primary objective was to gain deeper insights into the intricate dynamics of a sonic transverse jet in a supersonic crossflow with an oblique induced shock wave, especially concerning mixing. These simulations delved into the...

Aeroacoustic modeling of a LOX/CH4 rocket engine for high-frequency combustion instability prediction analyses

High-frequency combustion instabilities represent the main technical risk faced by design engineers when developing new chemical rocket propulsion systems. Such instabilities are driven by the coupling between the flames’ heat release rate and the combustion chamber’s acoustic field. As such, they can only be assessed during detailed design...

Design of an H2-O2 fired Solid Oxide Fuel Cell-Gas Turbine Test Set Up

The issue of climate change has fostered the innovation of new technology in an attempt to curb the rising emissions, with the energy sector being one of the biggest contributors of carbon emissions. Renewable Energy has shown promise in reducing the emissions by up to 32 %. However the problem of intermittency of<br/>renewable energy sources is...

Modelling Differential Diffusion in Turbulent Non-Premixed Hydrogen Flames

In the future, fossil fuels will be replaced by renewable sources. Hydrogen seems to be a promising energy carrier (fuel). A lot of research has been conducted on the combustion of hydrogen, but the effect of the high diffusivity of hydrogen compared to other species (differential diffusion) was often not included in simulations of turbulent...

A novel biomass reactor addressing the people’s need for renewable energy in the developing world

The current economic-development system based on fossil fuels can no longer sustain itself and is incapable of satisfying the needs of the global population. Nearly one third are unable to meet even their most basic needs that involve harnessing energy for everyday essential tasks such as maintaining livable shelter and food preparation. Models...

Development of a finite rate chemistry solver with tabulated dynamic adaptive chemistry

Despite the onset of peta-scale computing, simulations of reacting flows with detailed chemistry is still considered computationally expensive. Better understanding of the chemistry of various fuels has led to increase in the complexity of the simulations in an effort to compute flows with real complex fuels. The increase in complexity makes CFD...

Development of a transient CFD methodology for the optimization of CNG engines

Compressed natural gas (CNG) has been gaining attention in the automotive industry since it allows for a substantial reduction in carbon dioxide emissions. Recent advancements in direct-injection technology have contributed to an increase in volumetric efficiency and engine power, but the physical modeling of such gaseous injection with...