K2‑SPRING Q-ENERGY Innovator Unit グリーンイノベーションユニット
Shih-Peng Chang Photo
chang_shih-peng.jpeg
2026 Cohort 2026年度
K2-SPRING · Q-ENERGY Innovator Unit · Admission 2026 K2-SPRING · グリーンイノベーションユニット · 2026年度入学

Shih-Peng Chang

Shih-Peng Chang

Affiliation
所属
Graduate School of Engineering
工学府
Major / Department
専攻
Mechanical Engineering
機械工学専攻
Supervisor
指導教員
Prof. Masamichi KOHNO 河野 正道 教授
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K2-SPRING research

K2-SPRING 研究

K2-SPRING Project · Primary focus K2-SPRINGプロジェクト · 主題

Deep-Learning-Based Automated Analysis of Droplet-Impact Splashing Behavior and High-Precision Boundary Estimation

Deep-Learning-Based Automated Analysis of Droplet-Impact Splashing Behavior and High-Precision Boundary Estimation

Conventional analysis of droplet splashing — particularly in the small-droplet regime — has relied on visual inspection and manual measurement, limiting throughput, reproducibility, and objectivity. This project develops a deep-learning pipeline that automatically detects, classifies, and quantifies splashing morphologies and estimates splash boundaries with high precision from high-speed imaging. The framework will be benchmarked against the systematic experimental dataset built in the doctoral research, enabling objective, statistically robust comparison across a wide range of droplet temperatures and ambient pressures, and providing a transferable tool for the broader thermal-fluids community.

Conventional analysis of droplet splashing — particularly in the small-droplet regime — has relied on visual inspection and manual measurement, limiting throughput, reproducibility, and objectivity. This project develops a deep-learning pipeline that automatically detects, classifies, and quantifies splashing morphologies and estimates splash boundaries with high precision from high-speed imaging. The framework will be benchmarked against the systematic experimental dataset built in the doctoral research, enabling objective, statistically robust comparison across a wide range of droplet temperatures and ambient pressures, and providing a transferable tool for the broader thermal-fluids community.

§ 02

Doctoral research — context for the K2-SPRING project

博士 研究 — K2-SPRINGプロジェクトの背景

Main PhD work 博士課程主研究

Systematic elucidation of the effects of droplet temperature and ambient pressure on droplet impact dynamics

Systematic elucidation of the effects of droplet temperature and ambient pressure on droplet impact dynamics

Droplet impact on solid surfaces underlies spray cooling, inkjet printing, combustion, and coating processes. Past studies have examined impact velocity, fluid properties, substrate roughness, and ambient pressure individually; this work systematically controls droplet temperature and ambient pressure simultaneously to characterize their combined effect on impact dynamics, with implications for high-fidelity modeling of thermal-fluid processes.

Droplet impact on solid surfaces underlies spray cooling, inkjet printing, combustion, and coating processes. Past studies have examined impact velocity, fluid properties, substrate roughness, and ambient pressure individually; this work systematically controls droplet temperature and ambient pressure simultaneously to characterize their combined effect on impact dynamics, with implications for high-fidelity modeling of thermal-fluid processes.

§ 03

Research achievements

研究 業績

Research Papers論文
  1. Chih-Yung Wu, Bo-Wei Wang, Tung-Han Wu, Shih-Peng Chang “Using Kriging surrogate model to analyze hydrogen generation with dimethyl ether in partial oxidation catalytic fluidized bed reactor” International Journal of Hydrogen Energy, Vol. 54, pp. 467–482 (2024) [peer-reviewed] — 10.1016/j.ijhydene.2023.01.322
Conference Presentations学会発表
  1. Shih-Peng Chang, Hui Han Yang, Prashant Valluri, Yasuyuki Takata, Khellil Sefiane, Masamichi Kohno “Effects of Droplet Temperature on the Splashing Behavior of Liquid Droplets on a Solid Surface” J-K TFEC11 — 第11回 日韓熱流体工学会議, October 2025 [International, Oral]
Other Achievementsその他の業績
  1. Coming soon準備中
Programme & institutional affiliation プログラム・機関情報
K2-SPRING JST SPRING programmeJSTスプリングプログラム
Q-PIT Unit coordinatorユニットコーディネーター
Q-Energy Innovator Unit Q-Energy Innovator Unit Q-Energy Innovator Unitグリーンイノベーションユニット
Kyushu University Host universityホスト大学