Catalytic Methods in Flow Chemistry
Cold spray is an additive manufacturing technique in which an inert gas (often helium or nitrogen) is used to accelerate micron scale particles to supersonic velocities through a millimeter scale converging-diverging nozzle. When these particles impact a surface, they can plasti…
In this document a highly detailed stochastic soot model limited to 0D simulations is coupled to 3D domains through the use of a Lagrangian parcel-Eulerian fluid method. Although both the stochastic soot model used and the Lagrangian parcel-Eulerian fluid method have long histor…
The constant progression of society that desires more advanced, more efficient, and more appealing products requires constant need for development of new technologies and novel ways to produce new products. In the area of multi-layered polymeric systems, the need is no different…
The complicated turbulence structures in wall-bounded flows require accurate subgrid scale, SGS, modelling and realistic inlet boundary conditions for Large Eddy Simulation, LES. The present study focused on the investigation and development of transport equation SGS models and …
In gas turbines, the ingress of hot annulus gas into cavities between stator and rotor discs is an important topic to engine designers. Rim seals are fitted at the periphery of these cavities to reduce the pressurised purge required to protect vulnerable, highly-stressed engine …
Wave Energy is a promising sector for sustainable low-carbon energy production. Despite the effort put in the last decade, concerning problems remained unsolved. Numerical modelling can play a key role in the assessment of extreme responses necessary to the understanding of Wave…
Power transformers are key components of electric system networks; their performance inevitably influences the reliability of electricity transmission and distribution systems. To comprehend the thermal ageing of transformers, hot-spot prediction becomes of significance. As the …
Vortex shedding is an important mechanism, by which the flow around bluff bodies create forces that excite vibratory motion. Vortex-induced vibration (VIV) is studied for a single circular cylinder by means of Computational Fluid Dynamics (CFD) simulations. An arbitrary Lagrangi…
Laser metal deposition is one of the most versatile methods in the expanding field of additive manufacturing. Its outstanding advantage is its capability to process a variety of metallic materials for the freeform fabrication of objects having sound mechanical properties. The pr…
This thesis reports on investigations carried out to study of the effect of horizontal wall jets on rough, fixed and mobile beds in open channel flow. Experimental tests were carried out, using fixed and mobile sediment beds. Computer simulation models for the flow within the je…
The development of low form factor flight controls is driven by the benefits of reducing the installed volume of the control device and/or minimising the change in external geometry, with particular application to flight control of low observable aircraft. For this work, the ter…
Nonwoven-fabrics have been in use since 1930s. Their advantages over other web fonnation methods like knitting and weaving have attracted many industries such as aerospace, automotive, sports, geotextiles, composites, battery separators etc. to explore and increase their usage. …
In this thesis a numerical study has been undertaken to investigate turbulent flow and heat transfer in a number of flow problems, representing the gas-cooled reactor core flows. The first part of the research consisted of a meticulous assessment of various advanced RANS models …