以CUDA 架構進行地形座標系統上之三相流模式GPU 計算

Translated title of the contribution: Modeling Three-Phase Debris Flows in Terrain-Following Coordinate System and Its GPU Computation with CUDA Structure

Ching Yuan Ma, Chi Jyun Ko, Hock Kiet Wong, Yih Chin Tai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In terms of disaster assessment for the debris flows, the characteristics of flow behaviors and the associated flow paths are the main concerns. Despite the complex composition of debris flow, models of single-phase or two-phase approaches are employed for the purpose of reducing the computational expense. This practice has highly limited the capability of describing various scenarios because the concentration of the suspended fine clay/silt significantly influences the viscosity of the interstitial fluid. In the present study, a three-phase (solid, clay/silt, and water) model for debris flows is suggested, which is given in the terrain-following coordinate system. With this three-phase approach, the merging of high-density debris flows into the river can be well described, where a surge is induced, and the water level is enhanced together with intrusion into the opposite bank. In addition, the associated numerical model is implemented with the CUDA structure for GPU computation. The high efficiency exhibits the powerful capability of real-time calculation, yielding the impressive potential for engineering applications with respect to scenario investigation.

Translated title of the contributionModeling Three-Phase Debris Flows in Terrain-Following Coordinate System and Its GPU Computation with CUDA Structure
Original languageChinese (Traditional)
Pages (from-to)597-604
Number of pages8
JournalJournal of the Chinese Institute of Civil and Hydraulic Engineering
Volume34
Issue number7
DOIs
Publication statusPublished - 2022 Nov

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

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