Research Methods/Models:

• Computational Fluid Dynamics: Multiphase-Flow Modeling, Volume of Fluid Method, Discrete Phase Model, Species Transport, Rheological Models of Non-Newtonian Biofluids, Fluid-Structure/Solid Interaction (FSI) Modeling, P-1/Surface-to-Surface/Discrete Ordinates Radiation Models, Premixed/Non-Premixed/Partially Premixed Combustion Models.
• Experimental Fluid Dynamics: Particle Image Velocimetry, Optical Flow Method.
• Physics-Informed Machine/Deep Learning: Kernel-Based Regression Networks, Convolutional Neural Networks, Siamese Networks, Recurrent Neural Networks, Long Short-Term Memory Model.

     Research Topics/Interests:

1. Biofluidic and Biomechanics: Hemodynamics in the Neurovascular and Cardiovascular Systems, Pathophysiology and Intervention of Intracranial Aneurysms, FSI Modeling for the Interaction Between Blood and Arteries, Pathophysiology of Chronic Obstructive Pulmonary Diseases (COPDs), Angiography Modeling for Blood Flow Quantifications, Ocular Drug Administration Modeling, Thrombus Formation and Intervention, CNN and Big Data in Aiding Clinical Diagnosis (i.e., Intracranial Aneurysms and COPDs).
2. Aerodynamics: Aerodynamic Test/Optimization/Modification of Airfoil(s), Dual-Plane Airfoil, and Racing Car.
3. Fire Safety and Explosion Protection, Process Safety, and Environmental Protection: LPG/LNG Pool/Battery Runaway  Fires, Fire Tornados, Risk Evaluation (i.e., Heat Flux and/or Toxic Products) of Pool Fires on Human and Structures, Risk and Hazard Analysis (i.e., Risk Identification and Risk Assessment Matrix) in the Process Industries, Filter Design/Optimization/Evaluation for Air Cleaning in Heavy Industries.

• Ph.D., Chemical Engineering, Oklahoma State University, 2020.
• M.S., Safety Science and Engineering, Northeastern University (CN), 2015.
• B.S., Safety Engineering, Northeastern University (CN), 2013.

• Postdoctoral Research Fellow, Department of Mechanical & Materials Engineering, Wright State University, 2021- Present. 
• Certified Instructor, Teaching Data Carpentries and Software Carpentries (Shell, Git, R, and Python), The Carpentries of Community Initiatives, 2021-Present.
• Postdoc/Researcher, Computational Biofludics and Biomechanics Laboratory, Oklahoma State University, 2021.
• Research Engineer, Filter Testing Center, Northeastern University, 2015-2016.

Peer-reviewed Journal Publications  († denotes corresponding author, and * denotes co-first author)

1. H. Yi, Z. Yang, L.C. Bramlage, B.R. Ludwig (2024). Inter-subjective Variability of Secondary Intracranial Aneurysm Formation: A Comprehensive Ablation Study from Hemodynamic Perspectives via Original vs. Phantom Model (Under Review).
2. H. Yi, Z. Yang, L.C. Bramlage, B.R. Ludwig (2024). Developing a Benchmarked Pathway to Determine Patient-Specific Boundary Conditions and Its Importance for Hemodynamic Analysis on Intracranial Aneurysms (Under Review).
3. H. Yi, Z. Yang, L.C. Bramlage, B.R. Ludwig (2023). Pathophysiology of Intracranial Aneurysms in Monozygotic Twins: A Rare Case Study from Hemodynamic Perspectives, Computers in Biology and Medicine, 163, 107198. Access
4. H. Yi^†, Z. Yang, L.C. Bramlage, B.R. Ludwig (2023). Morphology and Hemodynamics of Cerebral Arteries and Aneurysms in a Rare Pair of Monozygotic Twins, Diagnostics, 13(12), 2004. Access
5. H. Yi^†, M. Johnson, L.C. Bramlage, B.R. Ludwig, Z. Yang (2023). Hemodynamic Investigations in Intracranial Aneurysms: A Commentary, Biomedical Engineering Communications, 2(1), 1. Access
6. H. Yi, Z. Yang, M. Johnson, L.C. Bramlage, B.R. Ludwig (2023). Erratum: "Hemodynamic Characteristics in a Cerebral Aneurysm Model Using Non-Newtonian Blood Analogues". Physics of Fluids, 35 (1), 019903. Access
7. H. Yi, Z. Yang, M. Johnson, L.C. Bramlage, B.R. Ludwig (2022). Developing an In-vitro Validated  3D In-silico Internal Carotid Artery Sidewall Aneurysm Model, Frontiers in Physiology, 13,1024590. Access
8. H. Yi, Z. Yang, M. Johnson, L.C. Bramlage, B.R. Ludwig (2022). Hemodynamic Characteristics in a Cerebral Aneurysm Model Using Non-Newtonian Blood Analogues. Physics of Fluids, 34(10), 103101 (Promoted as a Featured Article by Editors). Access
9. P. Hu, C. Cai, H. Yi*, J. Zhao, Y. Feng, Q. Wang (2022). Aid Airway Obstruction Diagnosis with Computational Fluid Dynamics and Convolutional Neural Network: A New Perspective and Numerical Case Study, ASME: Journal of Fluid Engineering, 144(8), 081206. Access
10. H. Yi^†, M. Johnson, L.C. Bramlage, B.R. Ludwig, Z. Yang (2022). Effects of Pulsatile Flowrate and Shunt Ratio in Bifurcated Distal Arteries on Hemodynamic Characteristics Involved in Two Patient-Specific Internal Carotid Artery Sidewall Aneurysms: A Numerical Study. Bioengineering, 9(7), 326. Access
11. H. Yi, Y. Feng , H. Fahlenkamp (2022). Analysis of Topical Dosing and Administration Effects on Ocular Drug Delivery in a Human Eyeball Model using Computational Fluid Dynamics. Computers in Biology and Medicine, 141, 105016. Access
12. H. Yi, Q. Wang, Y. Feng (2021). Computational Analysis of Chronic Obstructive Pulmonary Disease and Cough Intensity Effects on the Mucus Transport and Clearance in an Idealized Upper Airway Model Using Volume of Fluid Method. Physics of Fluids, 33, 021903 (Promoted as a Featured Article by Editors). Access
13. H. Yi, Y. Feng, H. Park, Q. Wang (2020). Configuration Predictions of Large Liquefied Petroleum Gas (LPG) Pool Fires using CFD Method. Journal of Loss Prevention in the Process Industries, 65, 104099. Access
14. H. Yi, Y. Feng, Q. Wang (2019). Computational Fluid Dynamics (CFD) Study of Heat Radiation from Large Liquefied Petroleum Gas (LPG) Pool Fires. Journal of Loss Prevention in the Process Industries. 61, 262-274. Access
15. M. Johnson, Z. Yang, H. Yi (2023). Dye Perfusion in Laminar and Turbulence Flows in a Squared Vertical Tube Using PIV, OFM, CFD, and ML. (Under Review).
16. L.C. Bramlage, H. Yi, Z. Yang, B.R. Ludwig (2023). E-244 Comparisons of configuration and hemodynamics in cerebral arteries and aneurysms between a rare pair of monozygotic twins.Journal of NeuroInterventional Surgery, 15:A223. Access
17. X. Tian, Q. Ou, Y. Lu, J. Liu, Y. Liang, D.Y.H., Pui, H. Yi (2023). Influence of Oil Content on Particle Loading Characteristics of a Two-stage Filtration System, Atmosphere, 14(3), 551. Access
18. S. Padhee, M. Johnson, H. Yi., T. Banerjee, Z. Yang (2022). Machine Learning for Aiding Blood Flow Velocity Estimation Based on Angiography. Bioengineering, 9(11), 622. Access
19. D. MA , G. Xie , W. Mao , J. Gao , H. Yi, D. Li (2022). Comparison and Improvement of Bioinspired Mobile Algorithms to Trace Emission Sources Based on Simulation Scenarios, Atmosphere, 13(5), 661. Access
20. Y. Feng, J. Zhao, H. Hayati, T. Sperry, H. Yi (2021). Tutorial: Understanding the Transport, Deposition, and Translocation of Particles in Human Respiratory Systems using Computational Fluid-Particle Dynamics and Pharmacokinetic/Toxicokinetic Models. Journal of Aerosol Science, 151, 105672 (Editor Invited Article for Cerebrating JAS 50th Anniversary). Access
21. Y. Feng, T. Marchal, T. Sperry, H. Yi (2020). Influence of Wind and Relative Humidity on the Social Distancing Effectiveness to Prevent COVID-19 Airborne Transmission: A Numerical Study. Journal of Aerosol Science, 147, 105585 (Selected as Cover Page by Editors and the Highest Citation Paper Since 2020). Access
22. B. Wang, H. Yi, K. Xu, Q. Wang (2017). Prediction of Self-accelerating Decomposition Temperature of Organic Peroxides Using QSPR Models. Journal of Thermal Analysis and Calorimetry, 128, 399-406. Access

Conferences, Meetings, Proceedings, Posters, and Presentations

1. H. Yi, Z. Yang, L. Bramlage, B. Ludwig, Developing a Benchmarked Pathway to Determine Patient-Specific Boundary Conditions for Hemodynamic Modeling in Intracranial Aneurysms, 49th AIAA-DCASS, AIAA, Mar. 2024, Dayton, OH.
2. H. Yi, Z. Yang, L. Bramlage, B. Ludwig, Influences of Blood Flow Waveform Uncertainties on Computational Hemodynamic Evaluation for Intracranial Aneurysms, EGLS APS Fall 2023 Meeting, American Physical Society (APS), Oct. 2023, Cleveland, OH.
3. H. Yi, Z. Yang, M. Johnson, L. Bramlage, B. Ludwig, “Hemodynamic Characteristics in an Intracranial Aneurysm Model using Non-Newtonian Blood Analog: A Critical Step from Lab to Clinic”, EGLS APS Spring 2023 Meeting, American Physical Society (APS), Apr. 2023, Rochester, MI.
4. H. Yi, M. Johnson, L. Bramlage, B. Ludwig, Z. Yang, “Developing an In-vitro Validated In-silico Cerebral Aneurysm Model using Non-Newtonian Blood Analogues”, 48th AIAA Dayton-Cincinnati Aerospace Sciences Symposium, American Institute of Aeronautics and Astronautics (AIAA), Feb. 2023, Dayton, OH.
5. H. Yi, Z. Yang, M. Johnson, L. Bramlage, B. Ludwig, “Experimental and Numerical Investigations on Hemodynamic Characteristics in an Internal Cerebral Artery Sidewall Aneurysm Model using Non-Newtonian Blood Analogue Fluids”, EGLS APS Spring 2022 Meeting, American Physical Society (APS), Apr. 2022, Youngstown, OH.
6. H. Yi, M. Johnson, L. Bramlage, B. Ludwig, Z. Yang, “The Study of Internal Carotid Artery Sidewall Aneurysms Using an Experimentally Validated Computational Fluid Dynamics Model”, 47^th AIAA Dayton-Cincinnati Aerospace Sciences Symposium, American Institute of Aeronautics and Astronautics (AIAA), Mar. 2022, Dayton, OH (Best Presentation Award).
7. H. Yi, Heat Radiation Predictions for Large Liquefied Petroleum Gas (LPG) Pool Fires Using CFD Method. Invited Journal Club Presentation, Chemical Engineering Graduate Student Association, Oklahoma State University, Sep. 2019, Stillwater, OK.
8. H. Yi, Q. Wang, “Computational Fluid Dynamics (CFD) Study of Heat Flux from Large Liquefied Petroleum Gas (LPG) Pool Fires”, 2018 Annual Mary K. O’Connor Process Safety Center International Symposium, Texas A&M University, Oct. 2018, College Station, TX.
9. H. Yi, Q. Wang, “The Application of CFD Simulation in Evaluation of LPG Pool Fire Heat Flux”, 14^th Global Congress on Process Safety, American Institute of Chemical Engineers (AIChE), Apr. 2018, Orlando, FL.
10. H. Yi, Q. Wang, “Evaluation of LPG Pool Fire Heat Flux-A Literature Review”, 2017 NFPA Conference & Expo, National Fire Protection Association, Jun. 2017, Boston, MA.
11. C. Ma, J. Chong, H. Yi, Z. Yang, Creation of Non-Newtonian Blood Analogue with Similar Shear-thinning Properties. 49th AIAA-DCASS, AIAA, Mar. 2024, Dayton, OH.
12. Z. Yang, H. Yi, 3D Flow Field Quantification in an Artery Model using Optical Flow Method Based on Simulated Multi-angle Angiography, 2024 Optica Meeting on Laser Applications for Chemical, Security and Environmental Analysis (LACSEA), 2024, Toulouse, France.
13. L. Bramlage, H. Yi, Z. Yang, B. Ludwig, “Comparisons in Morphology and Hemodynamics of Cerebral Arteries and Aneurysms in a Rare Pair of Monozygotic Twins”, Society of NeuroInterventional Surgery (SNIS) 20^th Annual Meeting, Jul. 2023, San Diego, CA.
14. Z. Yang, S. Padhee, M. Johnson, H. Yi., T. Banerjee, “Machine Learning for Angiography-Based Blood Flow Velocity Prediction”, EGLS APS Spring 2023 Meeting, American Physical Society (APS), Apr. 2023, Rochester, MI.
15. M. Johnson, H. Yi, Z. Yang, “Experimental and Numerical Studies on the Projective Dye Visualization Velocimetry in a Squared Vertical Tube”, 48th AIAA Dayton-Cincinnati Aerospace Sciences Symposium, American Institute of Aeronautics and Astronautics (AIAA), Feb. 2023, Dayton, OH (1^st Place in the Competition of Arts in Science).
16. S. Padhee, M. Johnson, H. Yi., Z. Yang, T. Banerjee, “Machine Learning for Angiography-Based Blood Flow Velocity Prediction”, 48^th AIAA Dayton-Cincinnati Aerospace Sciences Symposium, American Institute of Aeronautics and Astronautics (AIAA), Feb. 2023, Dayton, OH.
17. M. Johnson, Z. Yang, H. Yi, “Experimental and Numerical Studies on the Projective Dye Visualization Velocimetry in a Squared Vertical Tube”, EGLS APS Spring 2022 Meeting, American Physical Society (APS), Apr. 2022, Youngstown, OH.
18. J. Liu, H. Yi, X. Tian, D. Chang, N. Mao, X. Sun, “Comprehensive Assessment of Quality of Filter Bag Based on Analytic Hierarchy Process Theory”, The Proceedings of National Symposium on Filtration Technology, China Environment Protection Industry Association, Jul. 2015, Beijing.

Journal Editor and Conference Chair Service

• Youth Editor, Journal of Measurement Science and Instrumentation, 2023-2025.
• Review Editor, Frontiers in Medical Technology - Diagnostic and Therapeutic Devices,2022-Present.
• Guest Editor, Special Issue on New Sights of Biomechanics and Mechanobiology in Cardiovascular and/or Neurovascular of Bioengineering, 2022-2024.
• Young Editorial Board  Member, Biomedical Engineering Communications, 2023-2024.
• Session Chair, Orbital Mechanics Session of 48th American Institute of Aeronautics and Astronautics (AIAA) Dayton-Cincinnati Aerospace Sciences Symposium, OH, USA, Feb. 2023.
• Session Chair, Computational Fluid Dynamics Session of 47th American Institute of Aeronautics and Astronautics (AIAA) Dayton-Cincinnati Aerospace Sciences Symposium, OH, USA, Mar. 2022.
• Session Chair, System Engineering Session of 47th American Institute of Aeronautics and Astronautics (AIAA) Dayton-Cincinnati Aerospace Sciences Symposium, 2022, OH, USA, Mar. 2022.
• Leading Guest Editor, Special Issue on Effects of Outdoor Pollutants on Human Health of Atmosphere, 2021-2022.

Peer-reviewing Service (Over 40 Journals)

• Annals of Translational Medicine
• Applied Sciences
• ASME Open Journal of Engineering
• Atmosphere
• Axioms
• Biomechanics
• Chinese Journal of Chemical Engineering
• Cogent Engineering
• Computer Methods in Biomechanics and Biomedical Engineering
• Imaging & Visualization
• Current Cardiology Reviews
• Current Medical Imaging
• Diagnostics
• Emergency Management Science and Technology
• Energies
• Fluids
• Frontiers in Medical Technology
• Frontiers in Physiology
• International Journal of Environmental Research and Public Health
• Journal of Aerosol Science
• Journal of Applied Physics
• Journal of Biomechanical Engineering
• Journal of Environmental Management
• Journal of Fluids Engineering-Transactions of the ASME
• Journal of Hazardous Materials
• Journal of Heat and Mass Transfer of the ASME
• Journal of Loss Prevention in the Process Industries
• Journal of Thermal Analysis and Calorimetry
• Metrology
• Numerical Heat Transfer, Part A: Applications
• Ocean Engineering
• Pharmaceutics
• Physics of Fluids
• Processes
• Process Safety and Environment Protection
• Quantitative Imaging in Medicine and Surgery
• Renewable Energy
• Reliability Engineering & System Safety
• Review of Scientific Instruments
• Robotica
• Safety Science
• Scientific Reports
• Sensors
• Sustainability