Search Results - "Kharicha, A"

A four phase model for the macrosegregation and shrinkage cavity during solidification of steel ingot by Wu, M., Ludwig, A., Kharicha, A.

“…• Details of a multiphase model incorporating both macrosegregation and shrinkage cavity.• In-depth analysis of macrosegregation mechanisms.• New hypothesis of…”
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A transient model for nozzle clogging by Barati, H., Wu, M., Kharicha, A., Ludwig, A.

“…This model has been developed for transient simulation of clogging (also called as fouling) in submerged entry nozzle (SEN) during continuous casting. Three…”
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A Parametric Study of the Vacuum Arc Remelting (VAR) Process: Effects of Arc Radius, Side-Arcing, and Gas Cooling by Karimi-Sibaki, E., Kharicha, A., Wu, M., Ludwig, A., Bohacek, J.

“…Main modeling challenges for vacuum arc remelting (VAR) are briefly highlighted concerning various involving phenomena during the process such as formation and…”
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Simulation of the Electric Signal During the Formation and Departure of Droplets in the Electroslag Remelting Process by Kharicha, A., Wu, M., Ludwig, A., Karimi-Sibaki, E.

“…In the ESR process, it is very difficult to make experimental observations of the phenomena occurring within the molten slag. At present, the state of the…”
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Use of a mixed columnar-equiaxed solidification model to analyse the formation of as-cast structure and macrosegregation in a Sn-10 wt% Pb benchmark experiment by Zheng, Y, Wu, M, Karimi-Sibaki, E, Kharicha, A, Ludwig, A

“…•A mixed columnar-equiaxed solidification model for the Sn-Pb benchmark experiment.•Satisfactory simulation-experiment agreement in as-cast structure and…”
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Calculation Accuracy and Efficiency of a Transient Model for Submerged Entry Nozzle Clogging by Barati, H., Wu, M., Kharicha, A., Ludwig, A.

“…A transient numerical model was proposed and validated by the current authors for nozzle clogging (Barati et al . in Powder Technol 329:181-98, 2018). The…”
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A multiphase model for exploring electrochemical Marangoni flow by Karimi-Sibaki, E., Vakhrushev, A., Kadylnykova, A., Wu, M., Ludwig, A., Bohacek, J., Kharicha, A.

“…[Display omitted] •Interfacial dynamics due to electrochemically generated Marangoni flow.•A novel multiphase framework based on the VOF method.•Computation of…”
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Modeling diffusion-governed solidification of ternary alloys – Part 1: Coupling solidification kinetics with thermodynamics by Wu, M., Li, J., Ludwig, A., Kharicha, A.

“…•A full diffusion-governed solidification model for ternary alloys.•Flow and crystal sedimentation during solidification.•Bridging microsegregation and…”
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A volume of fluid (VOF) method to model shape change during electrodeposition by Karimi-Sibaki, E., Kharicha, A., Vakhrushev, A., Wu, M., Ludwig, A., Bohacek, J.

“…[Display omitted] •Modeling a dynamically deforming electrode–electrolyte interface.•A VOF-based approach to model electrodeposition.•Simulating transient…”
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A Dynamic Mesh-Based Approach to Model Melting and Shape of an ESR Electrode by Karimi-Sibaki, E., Kharicha, A., Bohacek, J., Wu, M., Ludwig, A.

“…This paper presents a numerical method to investigate the shape of tip and melt rate of an electrode during electroslag remelting process. The interactions…”
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A Numerical Study on the Influence of an Axial Magnetic Field (AMF) on Vacuum Arc Remelting (VAR) Process by Karimi-Sibaki, E., Kharicha, A., Abdi, M., Vakhrushev, A., Wu, M., Ludwig, A., Bohacek, J.

“…A comprehensive numerical model is proposed to study the influence of an axial magnetic field (AMF) on the solidification behavior of a Titanium-based…”
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A Coupled Magnetohydrodynamics (MHD) and Thermal Stress-Strain Model to Explore the Impact of Gas Cooling on Ingot Solidification Shrinkage in Vacuum Arc Remelting (VAR) Process by Bohacek, J., Karimi-Sibaki, E., Vakhrushev, A., Mraz, K., Hvozda, J., Wu, M., Kharicha, A.

“…An advanced 2D axisymmetric magnetohydrodynamics model, including calculations for electromagnetic, thermal, and flow fields, fully coupled with a thermal…”
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Numerical analysis of macrosegregation in vertically solidified Pb-Sn test castings – Part I: Columnar solidification by Wu, M., Zheng, Y., Kharicha, A., Ludwig, A.

“…Comparison of the macrosegregation patterns for the 4 test cases of columnar solidification. The segregation contours are shown in color scale, and they have…”
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Modeling diffusion-governed solidification of ternary alloys – Part 2: Macroscopic transport phenomena and macrosegregation by Wu, M., Li, J., Ludwig, A., Kharicha, A.

“…[Display omitted] •A full diffusion-governed solidification model for ternary alloys.•Flow and crystal sedimentation during solidification.•Bridging…”
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Numerical analysis of macrosegregation in vertically solidified Pb-Sn test castings – Part II: Equiaxed solidification by Zheng, Y., Wu, M., Kharicha, A., Ludwig, A.

“…Comparison of the macrosegregation patterns for the 4 test cases of equiaxed solidification. The segregation contours are shown in color scale, and they have…”
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Modeling electrochemical transport of ions in the molten CaF2–FeO slag operating under a DC voltage by Karimi-Sibaki, E., Kharicha, A., Wu, M., Ludwig, A., Bohacek, J.

“…Electrically resistive CaF2-based slags are extensively used in many metallurgical processes such as electroslag remelting (ESR). Chemical and electrochemical…”
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Numerical modeling and experimental validation of the effect of arc distribution on the as-solidified Ti64 ingot in vacuum arc remelting (VAR) process by Karimi-Sibaki, E., Kharicha, A., Vakhrushev, A., Abdi, M., Wu, M., Ludwig, A., Bohacek, J., Preiss, B.

“…A numerical model coupling electromagnetic field and plasma arc impact with multiphase transport phenomena such as flow, heat transfer and solidification for…”
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Simulation of channel segregation using a two-phase columnar solidification model – Part II: Mechanism and parameter study by Li, J., Wu, M., Hao, J., Kharicha, A., Ludwig, A.

“…► Formation mechanism of the channel segregation. ► Onset of channel segregation by the flow perturbation. ► Growth and stabilization of the channels are due…”
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A multiphysics model of the electroslag rapid remelting (ESRR) process by Karimi-Sibaki, E., Kharicha, A., Wu, M., Ludwig, A., Bohacek, J., Holzgruber, H., Ofner, B., Scheriau, A., Kubin, M.

“…•The first 3D model to study multiphysics in an industrial ESRR process.•The MHD, thermal, and solidification in the ESRR are investigated.•The impact of…”
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Hydrodynamically enhanced electrochemical mass transfer on the surface of an electrically conductive droplet by Kharicha, A., Karimi-Sibaki, E., Vakhrushev, A., Wu, M., Ludwig, A., Bohacek, J.

“…A fully coupled model is proposed to investigate the influence of flow on electrochemical mass transfer at the interface between the electrolyte and an…”
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