Research & Innovation

Advancing Water Resource Engineering through Experimental Studies and Computational Modeling

Storm Sewer Geyser Phenomena: Understanding and Mitigation

2022 - 2025 | PhD Dissertation

Storm Sewer Geyser Research

• Understanding violent water eruptions in urban drainage systems
• Large-scale experimental setup with high-speed imaging
• Computational fluid dynamics modeling and validation
• Development of practical mitigation solutions
• Testing retrofitting approaches for existing infrastructure

Experimental Geyser Eruptions

Geyser Eruption - Test 1

Geyser Eruption - Test 2

Geyser Eruption - Test 3

Computational Fluid Dynamics (CFD) Simulation

Numerical Simulation of Geyser Dynamics

Three-Dimensional Numerical Modeling

Advanced CFD simulations using OpenFOAM to model the complex two-phase flow phenomena during geyser formation and eruption. The simulations capture air-water interactions, pressure dynamics, and flow patterns in the storm sewer system.

Wire-Mesh Sensor Measurements

Cross-Sectional Flow Analysis

Wire-mesh sensors capture the void fraction distribution in the horizontal pipe cross-section, providing detailed insights into the air-water flow patterns during geyser formation.

Wire-Mesh Sensor Location

Raw Void Fraction

Interpolated Void Fraction

Related Publications

2025

Dynamics of cyclic and violent geyser eruptions in storm sewer systems: an experimental and numerical approach

Sharifi, A., Mahyawansi, P., Zanje, S. R., & Leon, A. S.

Journal of Hydraulic Research, 63(5), 558-577

2025

Real-Time Air–Water Volume Fraction Prediction Using Deep Learning and High-Speed Imaging

Sharifi, A., Zanje, S. R., Mahyawansi, P., Petrov, V., & Leon, A. S.

World Environmental and Water Resources Congress 2025 (pp. 471-485)

2024

Mechanistic Understanding of Field-Scale Geysers in Stormsewer Systems Using Three-Dimensional Numerical Modeling

Zanje, S. R., Mahyawansi, P., Sharifi, A., Leon, A. S., Petrov, V., & Infimovskiy, Y. Y.

Processes, 13(1), 32

2024

Numerical Investigation of the Physical Mechanisms behind Geysers in Storm Sewer Systems: A Slug Analysis Based on a Computational Study of Geyser Eruptions

Sharifi, A., Zanje, S. R., Mahyawansi, P., & Leon, A. S.

World Environmental and Water Resources Congress 2024 (pp. 835-845)

2024

Experimental investigation of storm sewer geyser using a large-scale setup

Mahyawansi, P., Zanje, S. R., Sharifi, A., McDaniel, D., & Leon, A. S.

Physics of Fluids, 36(5)

2024

Experimental and numerical investigation of a small scale storm sewer geyser

Mahyawansi, P., Zanje, S. R., Sharifi, A., McDaniel, D., & Leon, A. S.

Journal of Hydraulic Research, 62(1), 25-38

Research Methodology

Experimental Studies

Large-scale laboratory experiments using advanced instrumentation to capture the dynamics of geyser eruptions. Our setup includes high-speed cameras, pressure transducers, and flow measurement devices to analyze the complete cycle of geyser formation and eruption.

Key Equipment:

  • Large-scale storm sewer model
  • High-speed imaging systems
  • Pressure and flow sensors
  • Data acquisition systems

Numerical Modeling

Advanced computational fluid dynamics simulations using OpenFOAM and ANSYS to model the complex two-phase flow phenomena. These simulations help us understand the physical mechanisms and validate our experimental findings.

Modeling Approach:

  • 3D transient simulations
  • Volume of Fluid (VOF) method
  • Turbulence modeling
  • Air-water interface tracking

Solution Development

Design and testing of innovative retrofitting solutions including air release valves, flow control devices, and system modifications to prevent geyser formation while maintaining drainage efficiency.

Solutions Tested:

  • Air release mechanisms
  • Flow restriction devices
  • Pipe geometry modifications
  • Smart control systems

Key Research Findings

01

Geyser Formation Mechanisms

Identified the critical role of air entrapment and rapid pressure changes in triggering violent geyser eruptions. Our research revealed that specific geometric configurations and flow conditions create optimal conditions for air pocket formation.

02

Cyclic vs. Violent Eruptions

Distinguished between cyclic geysers (regular, predictable eruptions) and violent geysers (sudden, dangerous eruptions), establishing different formation criteria and mitigation strategies for each type.

03

Effective Retrofitting Solutions

Developed and validated multiple retrofitting approaches that can reduce geyser intensity by up to 90% while maintaining system drainage capacity. These solutions are practical for implementation in existing infrastructure.

Additional Research Areas

Biomedical Engineering

Magnetic drug targeting using nanoparticles in blood vessels. Research on optimizing drug delivery systems through computational fluid dynamics and magnetic field modeling.

8 Publications

Machine Learning Applications

Development of deep learning models for medical image analysis, including brain lesion detection, tumor segmentation, and diagnostic applications using convolutional neural networks.

12 Publications

Environmental Modeling

Climate impact analysis, COVID-19 environmental factors research, and sustainable engineering solutions for environmental challenges.

6 Publications

Signal & Image Processing

Advanced signal processing techniques for engineering applications, including fatigue analysis, medical diagnostics, and sensor data interpretation.

5 Publications

Research Impact & Recognition

30+
Publications
Peer-reviewed articles in top-tier journals
2096
Citations
Total research citations
21
H-Index
Research impact metric
84
Peer Reviews
Papers reviewed for 28 journals

Awards & Recognition

First Rank - Master's Degree

Urmia University of Technology (2016)

Dissertation Year Fellowship

Florida International University (2024-2025)

Guest Editor

Journal of Healthcare Engineering (2022-2024)

Research Collaborations

Current Collaborations

Working with leading researchers and institutions to advance the understanding of complex fluid dynamics phenomena and develop practical solutions for real-world challenges.

Dr. Arturo Leon

Principal Investigator - Storm Sewer Research

Florida International University

International Research Network

Global collaborations in water resource engineering

Multiple institutions worldwide

Future Research Directions

  • Smart monitoring systems for urban drainage
  • AI-driven predictive models for geyser occurrence
  • Climate change impact on storm sewer performance
  • Sustainable retrofitting solutions
  • Digital twin technology for water infrastructure