Siddiq Ur Rehman

Research Interests

Carbon capture and storage

Mr Siddiq Ur Rehman

Higher Degree by Research Candidate

School of Chemical Engineering

College of Engineering and Information Technology


In the fascinating world of mathematics, there are individuals who delve into the intricate realms of fluid mechanics and fractional calculus—and I count myself among them. Everyday phenomena, such as pouring honey from a jar or observing the steady flow of a river, conceal rich mathematical structures beneath their surface. Uncovering these hidden principles is what continually reminds me why I am drawn to applied mathematics.My academic journey began with a strong foundation in mathematics and culminated in the completion of my M.Phil. degree in Applied Mathematics from Abdul Wali Khan University of Mardan, where I graduated with a CGPA of 3.67 out of 4.00. During this period, I developed a deep appreciation for mathematical modeling and its power to explain complex physical processes.My M.Phil. research focused on the analysis of couple stress fluid flow in inclined Poiseuille configurations under the influence of magnetohydrodynamics (MHD). In simple terms, this work examined how fluids with microstructural effects behave when flowing through inclined channels in the presence of magnetic fields. Such flows arise in numerous engineering and geophysical applications, where classical fluid models fail to capture the underlying physics. By incorporating couple stress effects and magnetic forces, my research contributed to a more realistic and nuanced understanding of fluid behavior under complex conditions.This research involved the formulation of governing equations, analytical and semi-analytical solution techniques, and computational validation. Through this work, I strengthened my expertise in fluid mechanics, fractional calculus, differential equations, and applied mathematical analysis, while gaining hands-on experience with advanced mathematical modeling.Building upon this foundation, I am currently pursuing a PhD at the University of Adelaide, South Australia, Australia. My doctoral research is centered on analytical modelling of underground carbon dioxide (CO₂) storage in aquifers, a topic of critical importance for climate change mitigation and sustainable energy systems. My PhD work focuses on developing and analyzing mathematical models that describe multiphase flow, transport phenomena, and long-term stability of CO₂ sequestration in porous media, with an emphasis on analytical and semi-analytical approaches.

I am a researcher in applied mathematics. I completed my Bachelor's and MPhil degrees in Mathematics at a respected international university. My MPhil thesis, which focused on fluid mechanics and fractional calculus, employed semi-analytical techniques to solve complex differential systems. I have published several peer-reviewed research articles, primarily in the fields of fluid mechanics and fractional partial differential equations. Currently, I am completing my PhD at the University of Adelaide's School of Chemical Engineering through a partnership with HILT CRC. Here, I continue to explore my passion for mathematical modelling and advanced analytical methods.

Language Competency
English Can read, write, speak and understand spoken
Pushto; Pashto Can speak and understand spoken
Urdu Can read, write, speak and understand spoken

Year Citation
2026 Keykhosravi, A., Rehman, S., Osipov, Y., Kuzmina, L., Zeinijahromi, A., & Bedrikovetsky, P. (2026). Injectivity decline under suspension injection with Langmuir's fines capture: analytical model. Geoenergy Science and Engineering, 261, 14 pages.
DOI
2026 Kamyabi, F., Rehman, S. U., & Bedrikovetsky, P. (2026). Analytical Model for CO2 Storage with Fines Migration, Salt Precipitation and Partial Miscibility. Gas Science and Engineering, 149, 205883.
DOI
2025 Rehman, S. U., Nawaz, R., Zia, F., & Fewster Young, N. (2025). A Comprehensive study on the applications of NTIM and OAFM in analyzing fractional Navier-Stokes Equations. Axioms, 14(7, article no. 521), 1-14.
DOI
2024 Rehman, S. U., Nawaz, R., Zia, F., Fewster Young, N., & Ali, A. H. (2024). A comparative analysis of Noyes-Field model for the non-linear Belousov-Zhabotinsky reaction using two reliable techniques. Alexandria Engineering Journal, 93, 259-279.
DOI Scopus5 WoS5
2024 Nawaz, R., Farooq, M., Rehman, S. U., Ismail, G. M., & Ahmad, H. (2024). Analytical analysis of thermal conductivity by laminar flow under the influence of MHD using Vogel's model. Acta Mechanica Et Automatica, 18(3), 548-563.
DOI
2024 Khalil, M. M., Rehman, S. U., Ali, A. H., Nawaz, R., & Batiha, B. (2024). New modifications of natural transform iterative method and q-homotopy analysis method applied to fractional order KDV-Burger and Sawada-Kotera equations. Partial Differential Equations in Applied Mathematics, 12(100950), 1-9.
DOI Scopus9

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