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numerical modelling

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Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 372-378, May 24–28, 2021,
... coating-substrate system were considered. An analytical solution of the interfacial stress was developed by solving a Fredholm-Volterra singular integro-differential equation of a coating-substrate model using Chebyshev polynomials. Numerical simulation was conducted to analyze the effects of geometric...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 431-438, May 25–29, 1998,
... and MCrAlY were examined by numerical simulations. Velocities calculated by this model were compared with experimental measurements available in publications. For investigating the particle temperatures for which experimental data are hardly available, qualitative experiments were conducted with an MCrAlY...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 451-456, May 25–29, 1998,
... electromagnetic field to the nozzle. The reasonable agreement of particle velocity between calculation and experiment is observed. magnetic field numerical modeling plasma jet plasma spraying Thermal Spray: Meeting the Challenges of the 21st Century: Copyright © 1998 ASM International® Proceedings...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 105-113, May 8–11, 2000,
.... Christopher C. Berndt, editor, p 105-113 www.asminternational.org DOI: 10.31399/asm.cp.itsc2000p0105 Numerical Modeling of Particle Laden Flow in HVOF Torch with Gas Shroud A. Dolatabadi, J. Mostaghimi, M. Ivanovic Centre for Advanced Coating Technologies, Toronto, Ontario, Canada Abstract obtain better...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 125-134, May 8–11, 2000,
... obtained from the numerical model were comparable with those obtained from the experiments. Simulation of the sequential impact of two nickel particles showed side-flow jetting and particle splashing observed in experiments. The numerical model proved to be capable of simulating different impact scenarios...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 645-652, September 15–18, 1997,
... Abstract A high resolution numerical model has been developed to simulate the simultaneous spreading and solidification of single and multiple-splat on a cold substrate. The model combines the level set formulation with curvilinear adaptive finite volume scheme to predict the deforming shape...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 542-547, May 24–28, 2021,
... as an experimental reference for numerical analysis, which involved advanced turbulent flow and volumetric heat source modeling along with the use of commercial fluid flow software. Geometric and numerical models were used to simulate the generation of plasma inside the torch and the resulting plasma flow with its...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 813-822, September 15–18, 1997,
... input data are the quenching strain (or stress), the spraying temperature, material properties and specimen dimensions. Comparisons have been made between the predictions from this model and from a numerical model for two plasma sprayed systems. Good agreement is observed. The effects of varying certain...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 847-853, September 15–18, 1997,
... Abstract The present contribution concerns with a numerical modelling of the residual stress distribution within a multilayered coating system which consists of a functionally gradient material (FGM). The structure of the graded system is made of a ceramic layer and a metallic layer, where...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 635-643, September 15–18, 1997,
... Abstract A numerical model has been developed to study the rapid solidification of an alumina splat in thermal spray deposition. The model focuses on the melt undercooling, the selection of the various phases of Al 2 O 3 , and the subsequent non-equilibrium rapid solidification process. A thin...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 709-715, October 7–11, 1996,
... statistically designed experiments were the basis for the analytical-experimental comparisons. The thermal plasma produced by a commercial plasma spray torch was then numerically modeled from the electrodes to the standoff distance in the free plume for sixteen experiments. This information was then used...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 267-276, September 15–18, 1997,
... heat treatment was predicted using a previously-developed numerical model. A thin (1 mm) substrate with ~100 μm bond coat and ~250 μm ZrO 2 top coat was used in these simulations, which incorporated creep of the bond coat and the lateral strain associated with oxidation. It is concluded from...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 195-201, May 8–11, 2000,
... Abstract A numerical model is developed to study the effects of the contact resistance, droplet impacting droplet temperature, and substrate temperature on the droplet solidification rate and temperature of the droplet under the condition when the substrate can melt and re-solidify. Two...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 367-372, May 25–29, 1998,
... gradients within the coating-substrate system application of numerical modelling therefore could resulting in thermally induced stresses in the coating after enable the design of composites being tailored to the the spraying process. The purpose of this investigation is individual needs of industrial...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 482-488, May 24–28, 2021,
... is necessary: such numerical models should include as designed for the intended applications. For simulating the much details as possible about the coating porous architecture coating properties, it is necessary to determine the numerical focused on the pore sizes, the pore shapes, and their representation...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 355-360, May 25–29, 1998,
... obtained considering momentum and thermal exchanges between the plasma jet and particles using an Eulerian-Eulerian model. The evolution of velocity and temperature with the particle size given by in-situ measurements were then correlated to those obtained with the numerical code. iron particles...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 839-845, September 15–18, 1997,
...]. The roughness was removed by a careful polishing with a very Residual Stress Modelling. The as-deposited coating small load using 1 /*m diamond suspension as the last residual stress in the APS top coating was calculated using a polishing step. numerical FEM code [16,17] by a two step calculation procedure: i...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1565-1570, May 25–29, 1998,
..., isothermal creep data and, using no applied load, expansivity data were obtained. The CoNiCrAlY creeps faster than the NiCrAlY at low stresses, but the reverse is true at high stresses. The CoNiCrAlY has an appreciably higher expansivity than the NiCrAlY. These data were used in a numerical process model...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 549-555, September 15–18, 1997,
... velocity measurements are associated with electric arc intensity fluctuations which where are not considered in the models. To compensate this _ (dw)2 . K2 disagreement, Amano et al. (16) proposed to estimate a minimum value of turbulence quantities over the nozzle exit section. From a numerical elliptic...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 396-401, May 24–28, 2021,
.... In this study, we propose a new numerical approach on base of peridynamics (PD), which incorporates interfacial interactions as a part of constitutive model to capture deformation, bonding and rebound of impacting particles in one unified framework. Two models are proposed to characterize the adhesive contacts...