A simple physical model for self-Triggered upward leaders from high-rise buildings

Ming Kit Chan; Mingli Chen; Yaping Du

doi:10.1109/ICLP.2016.7791486

A simple physical model for self-Triggered upward leaders from high-rise buildings

Ming Kit Chan, Mingli Chen, Yaping Du

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

This paper presents a simple physical model for an upward positive leader initiated from a tall grounded object. Characteristics such as the leader channel structure, leader initiation criteria, leaded propagation speed, leader current and channel longitudinal electric field are described and modelled step-by-step. Other parameters including the evolution of leader line charge density, leader core conductance and radius, and leader corona sheath radius are also computed and evaluated. Particularly, the minimum corona sheath radius and corona charge density for leader initiation and stable propagation based on existing experiment data are proposed. The model may serve as a virtual lab to study the initiation of an upward leader at the top of a tall ground structure for tall building lightning protection analysis.

Original language	English
Title of host publication	2016 33rd International Conference on Lightning Protection, ICLP 2016
Publisher	IEEE
ISBN (Electronic)	9781509058433
DOIs	https://doi.org/10.1109/ICLP.2016.7791486
Publication status	Published - 19 Dec 2016
Event	33rd International Conference on Lightning Protection, ICLP 2016 - Estoril, Lisboa, Portugal Duration: 25 Sept 2016 → 30 Sept 2016

Conference

Conference	33rd International Conference on Lightning Protection, ICLP 2016
Country/Territory	Portugal
City	Estoril, Lisboa
Period	25/09/16 → 30/09/16

Keywords

Lightning
Propagation model
Upward leader

ASJC Scopus subject areas

Environmental Engineering

More information

10.1109/ICLP.2016.7791486

Cite this

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title = "A simple physical model for self-Triggered upward leaders from high-rise buildings",

abstract = "This paper presents a simple physical model for an upward positive leader initiated from a tall grounded object. Characteristics such as the leader channel structure, leader initiation criteria, leaded propagation speed, leader current and channel longitudinal electric field are described and modelled step-by-step. Other parameters including the evolution of leader line charge density, leader core conductance and radius, and leader corona sheath radius are also computed and evaluated. Particularly, the minimum corona sheath radius and corona charge density for leader initiation and stable propagation based on existing experiment data are proposed. The model may serve as a virtual lab to study the initiation of an upward leader at the top of a tall ground structure for tall building lightning protection analysis.",

keywords = "Lightning, Propagation model, Upward leader",

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booktitle = "2016 33rd International Conference on Lightning Protection, ICLP 2016",

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AU - Chan, Ming Kit

AU - Chen, Mingli

AU - Du, Yaping

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N2 - This paper presents a simple physical model for an upward positive leader initiated from a tall grounded object. Characteristics such as the leader channel structure, leader initiation criteria, leaded propagation speed, leader current and channel longitudinal electric field are described and modelled step-by-step. Other parameters including the evolution of leader line charge density, leader core conductance and radius, and leader corona sheath radius are also computed and evaluated. Particularly, the minimum corona sheath radius and corona charge density for leader initiation and stable propagation based on existing experiment data are proposed. The model may serve as a virtual lab to study the initiation of an upward leader at the top of a tall ground structure for tall building lightning protection analysis.

AB - This paper presents a simple physical model for an upward positive leader initiated from a tall grounded object. Characteristics such as the leader channel structure, leader initiation criteria, leaded propagation speed, leader current and channel longitudinal electric field are described and modelled step-by-step. Other parameters including the evolution of leader line charge density, leader core conductance and radius, and leader corona sheath radius are also computed and evaluated. Particularly, the minimum corona sheath radius and corona charge density for leader initiation and stable propagation based on existing experiment data are proposed. The model may serve as a virtual lab to study the initiation of an upward leader at the top of a tall ground structure for tall building lightning protection analysis.

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KW - Propagation model

KW - Upward leader

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DO - 10.1109/ICLP.2016.7791486

M3 - Conference article published in proceeding or book

BT - 2016 33rd International Conference on Lightning Protection, ICLP 2016

PB - IEEE

T2 - 33rd International Conference on Lightning Protection, ICLP 2016

Y2 - 25 September 2016 through 30 September 2016

ER -

A simple physical model for self-Triggered upward leaders from high-rise buildings

Abstract

Conference

Keywords

ASJC Scopus subject areas

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