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Paper Abstract and Keywords
Presentation 2017-11-17 14:10
Simulation on metal droplet sputtering and molten pool on copper contact under electric arc
Kai Bo (Harbin Inst. of Tech.), Xue Zhou, Guofu Zhai (HIT), Mo Chen (Tokyo Inst. of Tech.) EMD2017-49 Link to ES Tech. Rep. Archives: EMD2017-49
Abstract (in Japanese) (See Japanese page) 
(in English) The mechanism of molten pool and metal droplet sputtering are significant to the material erosion caused by breaking or making arcs especially for high-power switching devices. In this paper, a 2D axially symmetric simplified numerical model based on Navier-Stokes equations for incompressible viscous fluid and potential equation for electric field has been built to describe the formation of the molten metal jet drop and molten pool under a electric arc root on copper contact, the melting process is considered, the formation of an elemental molten pool and molten metal droplet under the electric arc on a copper contact has been numerically simulated by different metallic arc plasma pressure and heat flux density. The simulated molten metal droplet and molten pool behavior is presented by the temperature distribution sequences. Based on the simulation results, we distinguish two different models of the molten jet process: ?edge ejection? and ?center ejection?, a new explanation is proposed. It shows that the arc plasma pressure distribution plays an important role in the metal jet forced away from molten pool, the angle of the molten jet drop can be decreased along with the arc pressure amplitude increasing.
Keyword (in Japanese) (See Japanese page) 
(in English) Arc erosion / molten metal jet / molten pool / hydrodynamics of molten metal / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 312, EMD2017-49, pp. 37-42, Nov. 2017.
Paper # EMD2017-49 
Date of Issue 2017-11-10 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMD2017-49 Link to ES Tech. Rep. Archives: EMD2017-49

Conference Information
Committee EMD  
Conference Date 2017-11-17 - 2017-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session IS-EMD2017 
Paper Information
Registration To EMD 
Conference Code 2017-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simulation on metal droplet sputtering and molten pool on copper contact under electric arc 
Sub Title (in English)  
Keyword(1) Arc erosion  
Keyword(2) molten metal jet  
Keyword(3) molten pool  
Keyword(4) hydrodynamics of molten metal  
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1st Author's Name Kai Bo  
1st Author's Affiliation Harbin Institute of Technology (Harbin Inst. of Tech.)
2nd Author's Name Xue Zhou  
2nd Author's Affiliation Harbin Institute of Technology (HIT)
3rd Author's Name Guofu Zhai  
3rd Author's Affiliation Harbin Institute of Technology (HIT)
4th Author's Name Mo Chen  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-4 
Date Time 2017-11-17 14:10:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2017-49 
Volume (vol) vol.117 
Number (no) no.312 
Page pp.37-42 
#Pages
Date of Issue 2017-11-10 (EMD) 


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