Mehrdad | Mechanical Engineer

Welcome

I am Mehrdad, a mechanical engineer and researcher working in fluid mechanics, soft materials, transport phenomena, and renewable energy systems. I earned my Ph.D. in Mechanical Engineering from the University of Vermont, where I worked under the supervision of Prof. Jeffrey Marshall. My research focuses on the transport of nanoparticles in complex soft materials such as hydrogels and biofilms. Using computational simulations and theoretical modeling, I study how microscale interactions, material deformation, and flow dynamics influence transport in viscoelastic environments. More broadly, I am interested in multiscale modeling and in understanding how particle-scale physics shapes macroscale behavior in complex systems.

I have also worked on renewable energy problems, particularly advanced photovoltaic-thermal systems designed to improve solar panel performance while recovering useful thermal energy. This work explores novel system configurations and the use of nanofluids to enhance energy efficiency and expand the practical utility of solar technologies.

Contact

Email:
Mehrdad.ahmadinejad@uvm.edu

Address:
Department of Mechanical Engineering
University of Vermont
Burlington, VT, USA

Publications

The following is a selection of my academic publications.

My Academic Profiles

Peer-Reviewed Articles

2025

21. Ahmadinejad, M. and Marshall, J.S. (2025).
Clustering and diffusion of suspended particles in an oscillatory straining flow. Physics of Fluids 37(12).

20. Ahmadinejad, M. and Marshall, J.S., (2025).
Capture-release dynamics of nanoparticles in a viscoelastic hydrogel under an oscillating magnetic field. Physics of Fluids 37(9).

19. Assareh, E., Abdullah, A. J., Ahmadinejad, M., Omidi, A., & Lee, M. (2025).
A comparative study on optimizing multi-generation systems for zero energy buildings in the USA, South Korea, Canada, and England using machine learning and response surface methodology. Renewable Energy, 246, 122852.

18. Ahmadinejad, M. (2025).
Hydrogel dynamics in oscillating magnetic fields. Student Research Conference (SRC) at the University of Vermont

17. Mobayen, S., Assareh, E., Izadyar, N., Jamei, E., Ahmadinejad, M., Ghasemi, A., ... & Pak, W. (2025).
Multi-functional hybrid energy system for zero-energy residential buildings: Integrating hydrogen production and renewable energy solutions. International Journal of Hydrogen Energy, 102, 647–672.

2024

16. Ahmadinejad, M., & Marshall, J. S. (2024).
Magnetic nanoparticle interaction with a hydrogel in an oscillating magnetic field. Physics of Fluids, 36(1).

15. Ahmadinejad, M., & Marshall, J. (2024).
Multiperiodic Dynamics of a Nanoparticle-Filled Hydrogel in Oscillating Magnetic Fields. APS Division of Fluid Dynamics Meeting Abstracts, T19. 008.

14. Assareh, E., Ahmadinejad, M., Keykhah, M., Agarwal, N., Boudaghi, F., & Lee, M. (2024).
Integrated wind farm solutions: Harnessing clean energy for electricity, hydrogen, and freshwater production. International Journal of Hydrogen Energy, 138, 1213-1227.

13. Assareh, E., Meshkinnezhad, S., Agarwal, N., Baheri, A., Ahmadinejad, M., Behrang, M., ... & Lee, M. (2024).
Performance evaluation and multi-objective optimization of an innovative double-stage thermoelectric heat storage system for electricity generation. Energy Nexus, 13, 100260.

12. Assareh, E., Asl, S. S. M.,Ahmadinejad, M., Parvaz, M., & Ghodrat, M. (2024).
Optimization of a solar energy system integrating cooling, hot water, and power units in Australian cities: A climate-based analysis and cost-efficiency investigation. International Journal of Hydrogen Energy, 49, 353–375.

11. Dezhdar, A., Assareh, E., Agarwal, N., Baheri, A., Ahmadinejad, M., Zadsar, N., ... & Lee, M. (2024).
Modeling, optimization, and economic analysis of a comprehensive CCHP system with fuel cells, reverse osmosis, batteries, and hydrogen storage subsystems powered by renewable energy sources. Renewable Energy, 220, 119695.

2023

10. Ahmadinejad, M., & Moosavi, R. (2023).
Energy and exergy evaluation of a baffled-nanofluid-based photovoltaic thermal system (PVT). International Journal of Heat and Mass Transfer, 203, 123775.

9. Ahmadinejad, M., Soleimani, A., & Gerami, A. (2023).
Performance enhancement of a photovoltaic thermal (PVT) system with sinusoidal fins: A quasi-transient energy-exergy analysis. International Journal of Green Energy, 20(9), 978–996.

8. Assareh, E., Riaz, A., Ahmadinejad, M., Hoseinzadeh, S., Abdehvand, M. Z., Keykhah, S., ... & Lee, M. (2023).
Enhancing solar thermal collector systems for hot water production through machine learning-driven multi-objective optimization with phase change material (PCM). Journal of Energy Storage, 73, 108990.

7. Assareh, E., Asl, S. S. M., Agarwal, N., Ahmadinejad, M., Ghodrat, M., & Lee, M. (2023).
New optimized configuration for a hybrid PVT solar/electrolyzer/absorption chiller system utilizing the response surface method as a machine learning technique and multi-objective optimization. Energy, 281, 128309.

6. Assareh, E., Asl, S. S. M., Agarwal, N., Ahmadinejad, M., Jalali, A., & Lee, M. (2023).
A Cogeneration-Coupled energy storage system utilizing hydrogen and methane-fueled CAES and ORC with ambient temperature consideration enhanced by artificial neural network, and multi-objective optimization. Thermal Science and Engineering Progress, 46, 102161.

5. Panahi-Kalus, H., Moosaie, A., & Ahmadinejad, M. (2023).
A two-dimensional thermoelastic analysis of a cylindrical shell made of FGM with temperature-dependent physical properties. Advances in Applied Mathematics and Mechanics, 15(3), 623–650.

2022

4. Ahmadinejad, M., Soleimani, A., & Gerami, A. (2022).
The effects of a novel baffle-based collector on the performance of a photovoltaic/thermal system using SWCNT/Water nanofluid. Thermal Science and Engineering Progress, 34, 101443.

3. Abdolahzadeh, M., Tayebi, A., Ahmadinejad, M., & Šarler, B. (2022).
Numerical simulation of mixing fluid with ferrofluid in a magnetic field using the meshless SPH method. Fluids, 7(11), 341.

2020

2. Panahi-Kalus, H.,Ahmadinejad, M., & Moosaie, A. (2020).
The effect of temperature-dependent viscosity and thermal conductivity on velocity and temperature field: An analytical solution using the perturbation technique. Archives of Mechanics, 72(6).

1. Goudarzi, K., & Ahmadinejad, M. (2020).
Thermodynamic analysis of an efficient Rankine cycle powered by jacket water, oil engine and exhaust gas waste heat of internal combustion engine with the approach of selection of appropriate working fluid. Gas, 7(8), 5.

Selected results from ongoing and past research projects in fluid dynamics, soft materials, computational fluid dynamics (CFD) methods, transport phenomena, and renewable energy systems.

Capture–release kinetics in hydrogels — Capture–release kinetics model for nanoparticles in a hydrogel and its elastic/viscous response map. Physics of Fluids (2025)

Hydrogel capture fraction time series — Time evolution of captured particle fraction under oscillatory forcing for various parameters including (a) viscous-to-thermal work ratio, (b) adhesion energy, (c) magnetic coefficient, and (d) relative velocity. Physics of Fluids (2025)

Clustering and diffusion of suspended particles in an oscillatory straining flow for different Stokes numbers. Physics of Fluids (2025)

Animated Stokeslets Flow Field — Velocity field in the xy-plane induced by a 3D network of regularized Stokeslets. Red dots indicate node positions where forces are computed from prescribed velocities.

BEM simulation of flow past a sphere — Numerical simulation of incompressible Stokes flow past a solid sphere using the Boundary Element Method (BEM).

Finite difference simulation of flow past a sphere — Simulation of Stokes flow using a staggered finite difference method with a level-set ghost-cell scheme enforcing no-slip on the sphere.

Heat advection simulation — Simulation of 2D advection-diffusion showing temperature field evolution under steady flow.

Mehrdad Ahmadinejad