Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan: A case study of Yohutagawa, Japan

Z. Han, Guangqi Chen, Y. Li, H. Zhang, F. Fan, P. Jing, W. Wang, S. Zhou, L. Xu, S. Chen

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

As a two-phase anisotropic mixture, debris flowshows some complex fluid-dynamical characteristics on its motion behavior, which makes it difficult to be modelled or simulated through standard approaches. Consequently, Cellular Automaton (CA) model in the field of parallel computing, which has long been verified as efficiently applying in the simulation of complex natural process, are recently introduced to simulate flow-type phenomena. In this paper, the components of CA model for debris-flow simulation are reviewed, after that a two-dimensional cellular space is generated from the Digital Terrain Model (DTM) with 2.5m high-resolution, and the relationship of lattices in the space is defined as Moore neighborhood type. A new transition function, aiming at flow direction determination, is proposed through the way that implementing the debris-flow inertial influence into the traditional topography-based D8 algorithm, by a multiplying equation or an addition equation. We also present a three-step propagation algorithm to integrate the single flow routines, then use the constant discharge model to assign the flow depth to each routine, in this way the propagation area can be gradually delineated through each increment step. We test the developed model with CH87 Brichboden debris-flow event, and illustrate its application withYohutagawa debris-flow event in Japan, 2010. Results of both cases show that a more accurate propagation perimeter pattern is observed using addition equation in the modified flow direction algorithm, comparing to the traditional D8 algorithm and multiplying equation-based algorithm.

元の言語英語
ホスト出版物のタイトルGeomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
出版者Taylor and Francis - Balkema
ページ983-988
ページ数6
ISBN(印刷物)9781138027077
出版物ステータス出版済み - 1 1 2015
イベントInternational Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 - Cambridge, 英国
継続期間: 9 1 20149 3 2014

出版物シリーズ

名前Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
2

その他

その他International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
英国
Cambridge
期間9/1/149/3/14

Fingerprint

cellular automaton
cellular automata
alluvial fan
fans
debris
debris flow
Japan
propagation
parallel computing
digital terrain model
simulation
topography
fluid
fluids
high resolution

All Science Journal Classification (ASJC) codes

  • Geophysics

これを引用

Han, Z., Chen, G., Li, Y., Zhang, H., Fan, F., Jing, P., ... Chen, S. (2015). Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan: A case study of Yohutagawa, Japan. : Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 (pp. 983-988). (Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014; 巻数 2). Taylor and Francis - Balkema.

Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan : A case study of Yohutagawa, Japan. / Han, Z.; Chen, Guangqi; Li, Y.; Zhang, H.; Fan, F.; Jing, P.; Wang, W.; Zhou, S.; Xu, L.; Chen, S.

Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Taylor and Francis - Balkema, 2015. p. 983-988 (Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014; 巻 2).

研究成果: 著書/レポートタイプへの貢献会議での発言

Han, Z, Chen, G, Li, Y, Zhang, H, Fan, F, Jing, P, Wang, W, Zhou, S, Xu, L & Chen, S 2015, Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan: A case study of Yohutagawa, Japan. : Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014, 巻. 2, Taylor and Francis - Balkema, pp. 983-988, International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014, Cambridge, 英国, 9/1/14.
Han Z, Chen G, Li Y, Zhang H, Fan F, Jing P その他. Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan: A case study of Yohutagawa, Japan. : Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Taylor and Francis - Balkema. 2015. p. 983-988. (Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014).
Han, Z. ; Chen, Guangqi ; Li, Y. ; Zhang, H. ; Fan, F. ; Jing, P. ; Wang, W. ; Zhou, S. ; Xu, L. ; Chen, S. / Development of the cellular automaton model for simulating the propagation extent of debris flow at the alluvial fan : A case study of Yohutagawa, Japan. Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Taylor and Francis - Balkema, 2015. pp. 983-988 (Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014).
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