Members of the groundwater research group outside the JpGU 2026 conference venue.

Lin Groundwater Hydraulics Group

People who turn groundwater questions into traceable research.

Student projects have advanced analytical well hydraulics, Lagging Theory, thermal-response interpretation, and uncertainty diagnostics.

6 graduate research contributors
3 student-involved papers highlighted from 2026
4 connected research lines

Faculty direction

One research programme, carried across water, heat, and uncertainty.

Principal investigator

Ying-Fan Lin

林穎凡

The group develops analytical models for groundwater and subsurface heat transport, then asks how model structure changes inferred parameters and engineering decisions. Lagging Theory provides a shared line of inquiry into non-instantaneous hydraulic response.

Graduate work

Completed projects remain part of the group's research record.

Thesis titles are shown in English and Traditional Chinese where the final title was supplied.

01

Graduated

Ting-Hsiang Tsai

蔡鼎翔

Development and Application of an Analytical Solution for Oscillatory Pumping Considering Lagging Theory

考慮延遲理論之振盪抽水解析解建立與應用

02

Graduated

Yu-Hsiang Lo

羅于翔

Applying Dual-Phase Lag Theory to Thermal Response Test in Thermal Energy Evaluation

應用雙相位延遲理論於地熱能評估之熱響應試驗

Graduated

Hsiang-Wen Wang

Thermal response testing, borehole grout heat storage, and thermal-parameter estimation

Graduated

Hao-Chu Chen

Lagging Theory and spatial parameter distributions

Graduated

Shao-Hsuan Chiu

Completed student research project

Graduated

Li-Chen Cheng

Hydraulic memory and uncertainty diagnostics in pressurized slug tests

Published evidence

Student work carried into peer-reviewed publications.

Each record links to its DOI and uses the first page of the published paper as its visual source.

First page of Non-Integer Dimension Modeling and Sensitivity Diagnostics for Thermal Response Tests.
Applied Thermal Engineering 292, 130490

Non-Integer Dimension Modeling and Sensitivity Diagnostics for Thermal Response Tests

Hao-Chu Chen, Ting-Hsuan Chang, Yueh-Chie Lee, Li-Chen Cheng, Hsiang-Wen Wang, Jui-Pin Tsai, and Ying-Fan Lin

This study uses a non-integer dimensional description and sensitivity diagnostics to examine how thermal-response-test behavior changes with geometry and parameter interactions.

First page of Analytical Modeling of Grout Heat Storage Effects in Thermal Response Tests: Toward Faster and More Reliable Parameter Estimation.
Case Studies in Thermal Engineering 78, 107695

Analytical Modeling of Grout Heat Storage Effects in Thermal Response Tests: Toward Faster and More Reliable Parameter Estimation

Hsiang-Wen Wang, Ying-Fan Lin, Chia-Hao Chang, Bo-Tsen Wang, Hikari Fujii, Yu-Feng Forrest Lin, Kuo-Hsin Yang, and Jui-Pin Tsai

The analytical model retains heat stored in borehole grout, helping distinguish early-time grout effects from the later ground response used for thermal-property estimation.

First page of Diagnosing Apparent Hydraulic Memory in Pressurized Slug Tests With a Lagging Theory Framework.
Advances in Water Resources 215, 105381

Diagnosing Apparent Hydraulic Memory in Pressurized Slug Tests With a Lagging Theory Framework

Ying-Fan Lin and Li-Chen Cheng

The study separates apparent delayed recovery from a unique aquifer constant and uses Bayesian diagnostics to examine how pressure, scale, and model assumptions affect interpretation.

Author names above follow the journal records. Roster names follow the group record supplied for this website.

Research in public

Posters, questions, travel, and the conversations between them.

Conference participation is where derivations meet questions from outside the group.

Groundwater research team selfie outside the JpGU 2026 venue.
01 Conference team
Poster discussion at JpGU 2026.
02 Poster exchange
Research poster group at JpGU 2026.
03 Student presentations
Research team dinner during the JpGU 2026 trip.
04 Working dinner

Work with the group

Bring a groundwater response that the usual interpretation does not explain.

Suitable collaborations begin with a measured response, a forcing history, and a clear account of the decision that depends on the interpretation.

Start a technical conversation