Publications

2024

1. Kayde Bowers, Mahfuzur Rahman, Jincheng Wang, Abdallah Samad, Amrit Kumar, Hui Hu, "An Experimental Study on the Characteristics of Supersonic/Sonic Jet Flows Impinging Onto Solid Surfaces" - AIAA AVIATION FORUM AND ASCEND 2024

2. M Rafid, AK Azad, SM Prottoy, S Alam, Mahfuzur Rahman, MJ Miah, MS Hossain, MM Rahman, "Augmentation of heat exchanger performance with hybrid nanofluids: Identifying research gaps and future indications-A review" – International Communications in Heat and Mass Transfer

2023

3. Md. Mahmud Hasan Saikot, Mahfuzur Rahman, Md. Anwar Hosen, Wasif Ajwad, Md. Faiyaz Jamil, and Md Quamrul Islam, "Savonius Wind Turbine Performance Comparison with One and Two Porous Deflectors: A CFD Study" – Flow, Turbulence and Combustion

4. Mahfuzur Rahman,  Md. Shafiqul Islam, and Abid Hossain Khan, "Numerical Investigation and Benchmarking of Heat Transfer and Pressure Loss Characteristics with Two-Sided Rib-Roughened and Two-sided Heat Supply in Narrow Rectangular Channels" – Thermal Science and Engineering Progress

5.  Shahnawaz Alam, Salman Mahmud, Mostafa Rafid, and Mahfuzur Rahman, & Md. Mustafizur Rahman, “Effects of Aspect Ratio and Obstacle Geometry on the Thermal Performance of Fluid inside a Rectangular Cavity”, Proceedings of the ICERIE 2023 (7th International Conference on Engineering Research, Innovation, and Education).

2022

6. Mahfuzur Rahman, Abid Hossain Khan, Sayeed Anowar, Md Al-Imran, Richa Verma, Dinesh Kumar, Kazuma Kobayashi, and Syed Alam, "Leveraging Industry 4.0 - Deep Learning, Surrogate Model and Transfer Learning with Uncertainty Quantification Incorporated into Digital Twin for Nuclear System" – Handbook of Smart Energy Systems, Springer Nature.

7. Md. Mahmud Hasan Saikot, Mahbub Siam, and Mahfuzur Rahman, “Stability and Sensitivity Analysis of Darrieus Wind Turbine CFD Simulations at Low Tip Speeds”, Proceedings of the ICMIME 2022 (5th International Conference on Mechanical, Industrial and Materials Engineering).

2021

8. Mostafa Rafid, Nusrat Jinat Chowdhury, Mahfuzur Rahman, and A. B. M. Toufique Hasan, “Effects of Surface Discontinuity on Droplet Dynamics in a Microfluidic Channel”,  Proceedings of the ATE–HEFAT 2021: 15th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, p.754-759. (Awarded best paper in multiphase flow 1) (view certificate).

Projects

Name: Two-phase CPU cooling system using methanol

• The possibility of a CPU colling system with two-phase heat transfer was explored to yield better cooling performance than a conventional air cooler or all in one (AIO) cooler.

• Methanol was used as the coolant instead of water because to achieve evaporation of water at about 60°C a great amount of vacuum pressure is required that will not be feasible in a CPU cooling chamber.

• In the condenser, ducts with both rectangular and elliptical cross-sections were explored to achieve a higher overall heat transfer coefficient than regular circular cross-section ducts. A huge number of possible duct dimensions were explored using MATLAB. The codes and details of the codes can be viewed here.

• Snaps of the Solidworks design of the project are included below - 

Name: Line Follower Robot

• Implemented PID algorithm for tracking a black line on a white background or vice versa.

• Developed efficient algorithms for detecting 45, 60, 90 & 120 degree turns.

• Fabricated an effective combination of IR sensor array and sonar sensors to detect black lines, obstacles and line gaps accurately 

• Read more about this project in my project partner Sanim's blog.

Name: Minimalised rear-wheel drive RC four-wheeler racing vehicle with Brushless DC (BLDC) motor

• Applied belt-pulley mechanism to convert high rpm low torque power of the BLDC motor into low rpm high torque power that is required of a ground vehicle.

• Added a servo motor driven steering system in the front axle for turning the vehicle

• The speed of the BLDC motor was controlled by an Electronic Speed Controller (ESP) and both the ESP and servo motor was connected to an RC receiver which enabled us to control the speed and steering of the vehicle by an RC transmitter.

• Read more about this project in my project partner Sanim's blog.

Name: Strength analysis of a condenser unit using Ansys Mechanical

• The strength of a condenser with elliptical ducts was analyzed. To save computational time, instead of analyzing the whole condenser, a single symmetry unit was analyzed.

• Total deformation, maximum shear stress, maximum principal stress, equivalent (Von-Mises) stress was observed in two types of loading conditions - Pressure difference between the external and internal side of the duct, load due to the weight of the duct itself.