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Paper Abstract and Keywords
Presentation 2024-07-19 15:40
A study on improving results of numerical analyses of airflow acting on break arcs
Shinya Kato, Junya Sekikawa (Shizuoka Univ.) EMD2024-4
Abstract (in Japanese) (See Japanese page) 
(in English) The purpose of this report is to clarify how to set the calculation conditions to obtain results that appear to be
correct from calculation results obtained under different calculation conditions. From that perspective, the calculation results in
the authors' previous reports are also examined. The calculation object is a model in which air is blown into a contact gap from
a contact surface. A boundary surface that generates an air flow was set, and an initial value for the flow was set there. Following
results are shown.Changing the settings for mesh generation that includes the boundary surface resulted in different calculation
results. It was found that in order to obtain calculation results that appear to be correct, it is necessary to confirm that the flow
velocity distributions on the front and back near the boundary surface is equal to the set value when the calculation conditions
are changed. It is thought that the calculation results in the authors' previous reports were the results when the flow velocity
distributions on the front and back near the boundary surface was different from the initial value.
Keyword (in Japanese) (See Japanese page) 
(in English) Break Arc / Electro-magnetic Relay / Airflow / Electrical Contacts / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 118, EMD2024-4, pp. 19-24, July 2024.
Paper # EMD2024-4 
Date of Issue 2024-07-12 (EMD) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 EMD2024-4

Conference Information
Committee EMCJ WPT EMD  
Conference Date 2024-07-19 - 2024-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2024-07-EMCJ-WPT-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on improving results of numerical analyses of airflow acting on break arcs 
Sub Title (in English)  
Keyword(1) Break Arc  
Keyword(2) Electro-magnetic Relay  
Keyword(3) Airflow  
Keyword(4) Electrical Contacts  
Keyword(5)  
Keyword(6)  
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Keyword(8)  
1st Author's Name Shinya Kato  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Junya Sekikawa  
2nd Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2024-07-19 15:40:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2024-4 
Volume (vol) vol.124 
Number (no) no.118 
Page pp.19-24 
#Pages 6 
Date of Issue 2024-07-12 (EMD) 

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