Search Results - "Pericleous, K"

4D synchrotron X-ray tomographic quantification of the transition from cellular to dendrite growth during directional solidification by Cai, B., Wang, J., Kao, A., Pericleous, K., Phillion, A.B., Atwood, R.C., Lee, P.D.

“…Solidification morphology directly impacts the mechanical properties of materials; hence many models of the morphological evolution of dendritic structures…”
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Characterizing the cavitation development and acoustic spectrum in various liquids by Tzanakis, I., Lebon, G.S.B., Eskin, D.G., Pericleous, K.A.

“…•Cavitation and streaming were directly observed in distinctly different liquids.•A calibrated cavitometer was used to study acoustic spectra in these…”
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Investigation of the factors influencing cavitation intensity during the ultrasonic treatment of molten aluminium by Tzanakis, I., Lebon, G.S.B., Eskin, D.G., Pericleous, K.

“…The application of ultrasound to casting processes is a subject of great interest: the resulting degassing, sonocrystallization, wetting, fragmentation,…”
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Fundamental studies of ultrasonic melt processing by Eskin, D.G., Tzanakis, I., Wang, F., Lebon, G.S.B., Subroto, T., Pericleous, K., Mi, J.

“…•Attenuation of acoustic pressure is measured in liquid Al and water.•Acoustic streaming direction depends on the cavitation development.•Nucleation of primary…”
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The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field by Kao, A., Cai, B., Lee, P.D., Pericleous, K.

“…The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical…”
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Thermoelectric magnetohydrodynamic control of melt pool dynamics and microstructure evolution in additive manufacturing by Kao, A, Gan, T, Tonry, C, Krastins, I, Pericleous, K

“…Large thermal gradients in the melt pool from rapid heating followed by rapid cooling in metal additive manufacturing generate large thermoelectric currents…”
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Numerical modelling of ultrasonic waves in a bubbly Newtonian liquid using a high-order acoustic cavitation model by Lebon, G.S. Bruno, Tzanakis, I., Djambazov, G., Pericleous, K., Eskin, D.G.

“…•A higher-order scheme is used to compute pressure propagation in bubbly liquids.•The model is stable for Cou<0.2.•The model couples two time scales for bubble…”
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Thermoelectric magnetohydrodynamic effects on the crystal growth rate of undercooled Ni dendrites by Kao, A., Gao, J., Pericleous, K.

“…In the undercooled solidification of pure metals, the dendrite tip velocity has been shown experimentally to have a strong dependence on the intensity of an…”
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Magneto-hydrodynamic stability of a liquid metal battery in discharge by Tucs, A., Bojarevics, V., Pericleous, K.

“…All liquid three-layer batteries are intended as large-scale electrical energy storage. The paper investigates long-wave interfacial instabilities driven by…”
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Predicting concurrent structural mechanical mechanisms during microstructure evolution by Soar, P, Kao, A, Shevchenko, N, Eckert, S, Djambazov, G, Pericleous, K

“…The interdependence between structural mechanics and microstructure solidification has been widely observed experimentally as a factor leading to undesirable…”
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Thermal dependence of large-scale freckle defect formation by Kao, A, Shevchenko, N, Alexandrakis, M, Krastins, I, Eckert, S, Pericleous, K

“…The fundamental mechanisms governing macroscopic freckle defect formation during directional solidification are studied experimentally in a Hele-Shaw cell for…”
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Modelled atmospheric contribution to nitrogen eutrophication in the English Channel and the southern North Sea by Djambazov, G., Pericleous, K.

“…Eutrophication of the coastal waters results in algal blooms which may be harmful to the marine ecosystem and coastal economy. The main sources of nutrients…”
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Acoustic resonance for contactless ultrasonic cavitation in alloy melts by Tonry, C.E.H., Djambazov, G., Dybalska, A., Griffiths, W.D., Beckwith, C., Bojarevics, V., Pericleous, K.A.

“…•Contactless ultrasound is a novel, technique for the Ultrasonic Treatment (UST) of liquid metals.•To reach the necessary pressure amplitude for cavitation…”
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Toward a Full Simulation of the Basic Oxygen Furnace: Deformation of the Bath Free Surface and Coupled Transfer Processes Associated with the Post-Combustion in the Gas Region by Doh, Y., Chapelle, P., Jardy, A., Djambazov, G., Pericleous, K., Ghazal, G., Gardin, P.

“…The present article treats different phenomena taking place in a steelmaking converter through the development of two separate models. The first model…”
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Optimal designs for estimating linear and quadratic contrasts with three level factors, the case N ≡ 0 mod 3 by Pericleous, K., Chatzopoulos, St. A., Kolyva-Machera, F., Kounias, S.

“…The purpose of this paper is to find and construct optimal designs for estimating the standardized linear and quadratic contrasts in fractional factorials with…”
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A Numerical Model Coupling Thermoelectricity, Magnetohydrodynamics and Dendritic Growth by Kao, A., Pericleous, K.

“…The purpose of this paper is to discuss in detail the numerical techniques used to investigate the effects of Thermoelectric Magnetohydrodynamics on dendrtic…”
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Modelling the dynamics of the tilt-casting process and the effect of the mould design on the casting quality by Wang, H., Djambazov, G., Pericleous, K.A., Harding, R.A., Wickins, M.

“…All titanium alloys are highly reactive in the molten condition and so are usually melted in a water-cooled copper crucible to avoid contamination using…”
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Experimental and numerical study of the cold crucible melting process by Pericleous, K., Bojarevics, V., Djambazov, G., Harding, R.A., Wickins, M.

“…The cold crucible, or induction skull melting process as is otherwise known, has the potential to produce high purity melts of a range of difficult to melt…”
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Heat and mass transfer in two-phase porous materials under intensive microwave heating by Dinčov, D.D., Parrott, K.A., Pericleous, K.A.

“…Computational results for the intensive microwave heating of porous materials are presented in this work. A multi-phase porous media model has been developed…”
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Dynamic Model for Metal Cleanness Evaluation by Melting in a Cold Crucible by Bojarevics, V., Pericleous, K., Brooks, R.

“…Melting of metallic samples in a cold crucible causes inclusions to concentrate on the surface owing to the action of the electromagnetic force in the skin…”
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