What question did this study set out to answer?

Develop and validate an axisymmetric numerical model to evaluate the thermal energy transfer, phase transitions, and crater formation caused by an electric arc root on an electrode surface.

June 1, 1993IEEE Transactions on Components Hybrids and Manufacturing Technology

A numerical model for thermal processes in an electrode submitted to an arc in air and its experimental verification

View Full Paper

Ask AI

Bookmark

Authors

JCJ.P. Chabrerie JDJ. Devautour PTPhilippe Testé

Discussion

Member takes

Overview

Computational and experimental study demonstrates accurate thermal ablation modeling in electrical arc electrodes, highlighting precise energy transfer estimation during phase changes.

Key Points

Develop and validate an axisymmetric numerical model to evaluate the thermal energy transfer, phase transitions, and crater formation caused by an electric arc root on an electrode surface.
Observed arc behavior using high-speed laser cinematography to verify a concentrated, quasi-circular arc root geometry under atmospheric pressure.
Formulated an axisymmetric numerical heat transfer model incorporating moving boundaries to account for intense surface heating, liquefaction, evaporation, and ablation.
Directly measured the quantities of generated liquid and vapor using a custom experimental apparatus to benchmark model predictions.
Laser cinematography validated the assumption of a concentrated, quasi-circular arc root, justifying an axially symmetric computational approach.
The numerical framework resolved moving boundary challenges associated with rapid state changes and material ablation.
Computed predictions of liquid and vapor volume matched direct experimental measurements, providing accurate approximations of the arc energy delivered to electrodes.

Cite This Study

Chabrerie et al. (1993) studied this question.

synapsesocial.com/papers/6a994dc9e8ca4d2af6364751 https://doi.org/10.1109/33.237942

View Full Paper

Ask AI

Bookmark

June 1, 1993IEEE Transactions on Components Hybrids and Manufacturing Technology

A numerical model for thermal processes in an electrode submitted to an arc in air and its experimental verification

View Full Paper

Ask AI

Bookmark

Authors

JCJ.P. Chabrerie JDJ. Devautour PTPhilippe Testé

Discussion

Member takes

Overview

Computational and experimental study demonstrates accurate thermal ablation modeling in electrical arc electrodes, highlighting precise energy transfer estimation during phase changes.

Key Points

Develop and validate an axisymmetric numerical model to evaluate the thermal energy transfer, phase transitions, and crater formation caused by an electric arc root on an electrode surface.
Observed arc behavior using high-speed laser cinematography to verify a concentrated, quasi-circular arc root geometry under atmospheric pressure.
Formulated an axisymmetric numerical heat transfer model incorporating moving boundaries to account for intense surface heating, liquefaction, evaporation, and ablation.
Directly measured the quantities of generated liquid and vapor using a custom experimental apparatus to benchmark model predictions.
Laser cinematography validated the assumption of a concentrated, quasi-circular arc root, justifying an axially symmetric computational approach.
The numerical framework resolved moving boundary challenges associated with rapid state changes and material ablation.
Computed predictions of liquid and vapor volume matched direct experimental measurements, providing accurate approximations of the arc energy delivered to electrodes.

Cite This Study

Chabrerie et al. (1993) studied this question.

synapsesocial.com/papers/6a994dc9e8ca4d2af6364751 https://doi.org/10.1109/33.237942

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

View Full Paper

Ask AI

Bookmark