Sitemap
A list of all the posts and pages found on the site. For you robots out there, there is an XML version available for digesting as well.
Pages
About Me
Applied Mathematician and Research Fellow at the University of Warwick, working on physics-based battery modelling and bubble dynamics.
Posts
بیرکاری: کلیلی شاراوەی پێشکەوتنی مرۆڤایەتی
Published:
publications
An iterative method with quartic convergence for solving nonlinear equations
Published in Applied Mathematics and Computation, 2008
This paper derives a three-step iterative scheme for the numerical solution of nonlinear equations and establishes its fourth-order (quartic) convergence. Numerical comparisons with classical Newton-type methods illustrate the improved rate of convergence.
Recommended citation: Saeed, R.K., & Aziz, K.M. (2008). "An iterative method with quartic convergence for solving nonlinear equations." Applied Mathematics and Computation, 202(2), 435-440.
Download Paper
Three dimensional microbubble dynamics near a wall subject to high intensity ultrasound
Published in Physics of Fluids, 2014
This paper presents a computational model for simulating three-dimensional microbubble dynamics near a wall when exposed to high intensity ultrasound. While previous studies focused on axisymmetric configurations, my research extends to fully three-dimensional dynamics using the boundary integral method.
Recommended citation: Wang, Q.X., & Manmi, K. (2014). "Three dimensional microbubble dynamics near a wall subject to high intensity ultrasound." Physics of Fluids, 26(3), 032104.
Download Paper
Numerical modeling of the 3D dynamics of ultrasound contrast agent microbubbles using the boundary integral method
Published in Physics of Fluids, 2015
This paper presents a numerical model for studying the 3D dynamics of ultrasound contrast agent (UCA) microbubbles using the boundary integral method.
Recommended citation: Wang, Q.X., Manmi, K., & Calvisi, M.L. (2015). "Numerical modeling of the 3D dynamics of ultrasound contrast agent microbubbles using the boundary integral method." Physics of Fluids, 27(2), 022104.
Download Paper
Cell mechanics in biomedical cavitation
Published in Interface Focus, 2015
This review paper examines the interdisciplinary field of cell mechanics in biomedical cavitation, focusing on the deformation behaviors of cellular entities like coated microbubbles and liposomes when subjected to cavitation flow.
Recommended citation: Wang, Q.X., Manmi, K., & Liu, K.-K. (2015). "Cell mechanics in biomedical cavitation." Interface Focus, 5(5), 20150018.
Download Paper
Acoustic microbubble dynamics with viscous effects
Published in Ultrasonics Sonochemistry, 2017
This paper examines acoustic microbubble dynamics with viscous effects, important for biomedical ultrasonics, sonochemistry, and cavitation cleaning.
Recommended citation: Manmi, K., & Wang, Q.X. (2017). "Acoustic microbubble dynamics with viscous effects." Ultrasonics Sonochemistry, 36, 427-436.
Download Paper
Which Parameters Affect Biofilm Removal with Acoustic Cavitation? A Review
Published in Ultrasound in Medicine & Biology, 2019
This review paper examines the parameters that affect biofilm removal using acoustic cavitation. Biofilms are coagulated masses of bacterial microorganisms that adhere to surfaces and cause contamination in various medical and biological settings.
Recommended citation: Vyas, N., Manmi, K., Wang, Q.X., Jadhav, A.J., Barigou, M., Sammons, R.L., Kuehne, S.A., & Walmsley, A.D. (2019). "Which parameters affect biofilm removal with acoustic cavitation? A review." Ultrasound in Medicine & Biology, 45(5), 1044-1055.
Download Paper
Modeling three dimensional gas bubble dynamics between two curved rigid plates using boundary integral method
Published in Engineering Analysis with Boundary Elements, 2019
This paper presents a computational study of three-dimensional gas bubble dynamics between two curved rigid plates using the boundary integral method (BIM).
Recommended citation: Aziz, I.A., Manmi, K.M.A., Saeed, R.K., & Dadvand, A. (2019). "Modeling three dimensional gas bubble dynamics between two curved rigid plates using boundary integral method." Engineering Analysis with Boundary Elements, 109, 19-31.
Download Paper
Numerical investigation of cavitation generated by an ultrasonic dental scaler tip vibrating in a compressible liquid
Published in Ultrasonics Sonochemistry, 2020
This study presents a numerical investigation of cavitation generated by an ultrasonic dental scaler tip vibrating in a compressible liquid using the finite element method.
Recommended citation: Manmi, K.M.A., Wu, W.B., Vyas, N., Smith, W.R., Wang, Q.X., & Walmsley, A.D. (2020). "Numerical investigation of cavitation generated by an ultrasonic dental scaler tip vibrating in a compressible liquid." Ultrasonics Sonochemistry, 63, 104963.
Download Paper
How does ultrasonic cavitation remove dental bacterial biofilm?
Published in Ultrasonics Sonochemistry, 2020
This study reveals how ultrasonic dental scalers remove bacterial biofilm through cavitation.
Recommended citation: Vyas, N., Wang, Q.X., Manmi, K.A., Sammons, R.L., Kuehne, S.A., & Walmsley, A.D. (2020). "How does ultrasonic cavitation remove dental bacterial biofilm?" Ultrasonics Sonochemistry, 67, 105112.
Download Paper
Three-dimensional oscillation of an acoustic microbubble between two rigid curved plates
Published in Journal of Hydrodynamics, 2021
This study investigates three-dimensional microbubble oscillation between two curved rigid plates under a planar acoustic wave using the boundary integral method (BIM).
Recommended citation: Manmi, K.M.A., Aziz, I.A., Arjunan, A., Saeed, R.K., & Dadvand, A. (2021). "Three-dimensional oscillation of an acoustic microbubble between two rigid curved plates." Journal of Hydrodynamics, 33(5), 1019-1034.
Download Paper
Three-dimensional bubble jetting inside a corner formed by rigid curved plates: Boundary integral analysis
Published in International Journal of Multiphase Flow, 2023
This study investigates the three-dimensional dynamics of a transient bubble inside a corner formed by two rigid curved parabolic plates using the boundary integral method (BIM) based on potential flow theory.
Recommended citation: Dadvand, A., Manmi, K.M.A., & Aziz, I.A. (2023). "Three-dimensional bubble jetting inside a corner formed by rigid curved plates: Boundary integral analysis." International Journal of Multiphase Flow, 158, 104308.
Download Paper
Oscillation of an ultrasonically driven gas bubble in an asymmetric confined domain
Published in International Journal of Mechanical Sciences, 2024
This study investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall using OpenFOAM software.
Recommended citation: Bapir, S.A., Manmi, K.M.A., Saeed, R.K., & Dadvand, A. (2024). "Oscillation of an ultrasonically driven gas bubble in an asymmetric confined domain." International Journal of Mechanical Sciences, 265, 108861.
Download Paper
An extended Laplacian smoothing for boundary element analysis of 3D bubble dynamics
Published in Engineering Analysis with Boundary Elements, 2024
This paper introduces an Extended Laplacian Smoothing (ELS) method to overcome numerical instability and mesh distortion in 3D bubble dynamics simulations using the Boundary Element Method.
Recommended citation: Jund, A.A., Dadvand, A., Aziz, I.A., & Manmi, K.M.A. (2024). "An extended Laplacian smoothing for boundary element analysis of 3D bubble dynamics." Engineering Analysis with Boundary Elements, 160, 76-88.
Download Paper
Dynamics of a bubble-pair between two parallel rigid walls
Published in Ocean Engineering, 2024
This numerical study investigates the dynamics of two gas bubbles placed side-by-side in liquid between parallel rigid plates using OpenFOAM’s multiphase volume of fluid (VOF) model.
Recommended citation: Agha, J.A., Manmi, K.M.A., & Dadvand, A. (2024). "Dynamics of a bubble-pair between two parallel rigid walls." Ocean Engineering, 301, 117401.
Download Paper
A Comparison of Standard SEI Growth Models in the Context of Battery Formation
Published in Journal of The Electrochemical Society, 2024
This paper compares standard SEI growth models in lithium-ion batteries during formation cycles.
Recommended citation: Manmi, K., Tuchel, M., Kendrick, E., & Brosa Planella, F. (2024). "A comparison of standard SEI growth models in the context of battery formation." Journal of The Electrochemical Society, 171(10), 100530.
Download Paper
Modeling of Solid-Electrolyte Interphase Growth with Non-Equilibrium Thermodynamics
Published in ECS Meeting Abstracts, 2025
This work presents a continuum model for solid-electrolyte interphase (SEI) growth in lithium-ion batteries, grounded in bulk-surface non-equilibrium thermodynamics. The model systematically treats reaction kinetics, moving interface conditions, and chemical potential functions to derive a consistent set of equations governing species concentrations, electric potential, and SEI thickness. The study demonstrates how resistive effects of the growing SEI and capacitive effects of electrochemical double layers influence cell behaviour, with validation against experimental energy and power capacity data showing realistic performance across different charging rates.
Recommended citation: Pohl, C., Landstorfer, M., Brosa Planella, F., & Manmi, K. (2025). "Modeling of solid-electrolyte interphase growth with non-equilibrium thermodynamics." ECS Meeting Abstracts, MA2025-02, 2314.
Download Paper
A collapsing bubble-based micropump for viscous liquids
Published in Experimental and Computational Multiphase Flow, 2026
This study numerically investigates a micropump mechanism driven by the collapse of a bubble near a perforated rigid plate. During collapse, a liquid jet forms toward the plate, and part of the jet flow passes through a truncated cone hole, transporting liquid from one side to the other — offering a micropump with no moving parts and exceptionally rapid response time. Using the volume of fluid (VOF) method with a single-field Navier–Stokes formulation accounting for surface tension and viscosity, the study examines the effects of cone angle, standoff distance, plate thickness, and liquid viscosity on pumping performance. Results show that increasing any of these parameters reduces the net mass pumped through the hole.
Recommended citation: Khosroshahi, A.E., Dadvand, A., & Manmi, K.M.A. (2026). "A collapsing bubble-based micropump for viscous liquids." Experimental and Computational Multiphase Flow.
Download Paper
Nonlinear dynamics of Nosema ceranae and the fragile resilience of honeybee colonies under environmental strain
Published in Scientific Reports, 2026
A mathematical model for the transmission of the microsporidian parasite Nosema ceranae within honeybee colonies. The nonlinear dynamics of the system are analysed to examine how environmental stress affects colony persistence and the resilience of the colony to infection.
Recommended citation: Salman, A.M., Mohd, M.H., Almansoori, A.K.K., & Manmi, K.M.A. (2026). "Nonlinear dynamics of Nosema ceranae and the fragile resilience of honeybee colonies under environmental strain." Scientific Reports.
Download Paper
Experimental and numerical study of the dynamics of a laser-induced cavitation bubble between two parallel walls: Effect of confinement and viscosity
Published in Experimental and Computational Multiphase Flow, 2026
A combined experimental and numerical study of a laser-induced cavitation bubble oscillating between two parallel walls. The work examines how the degree of confinement and the viscosity of the surrounding liquid govern the bubble’s oscillation, jetting behaviour and collapse.
Recommended citation: Dadvand, A., Kadivar, E., Bapir, S.A., Manmi, K.M.A., & el Moctar, O. (2026). "Experimental and numerical study of the dynamics of a laser-induced cavitation bubble between two parallel walls: Effect of confinement and viscosity." Experimental and Computational Multiphase Flow.
Download Paper
Radial oscillations of a lipid-shelled microbubble in shear-thinning blood inside a cylindrical elastic microvessel
Published in Physics of Fluids, 2026
Ultrasound contrast agents are encapsulated gas microbubbles whose dynamics are governed by gas compressibility, shell viscoelasticity, blood rheology and vessel confinement. Existing models generally treat blood as a Newtonian fluid, neglecting the shear-thinning behaviour that becomes significant in microvessels. This paper models the radial oscillations of a lipid-shelled microbubble in shear-thinning blood confined within a cylindrical elastic microvessel.
Recommended citation: Manmi, K.M.A. (2026). "Radial oscillations of a lipid-shelled microbubble in shear-thinning blood inside a cylindrical elastic microvessel." Physics of Fluids, 38(7), 071910.
Download Paper
A model for SEI growth based on non-equilibrium thermodynamics
Published in Electrochimica Acta, 2026
Growth of the solid electrolyte interphase (SEI) is a dominant degradation mechanism in lithium-ion batteries, governing capacity fade, coulombic efficiency and long-term performance. This paper presents a continuum model for SEI growth based on bulk-surface non-equilibrium thermodynamics, treating reaction kinetics, interface conditions, the moving interface and the chemical potential functions of the species involved systematically, to arrive at a consistent system of equations for the species concentrations, electric potential and SEI thickness.
Recommended citation: Pohl, C., Brosa Planella, F., Manmi, K., & Landstorfer, M. (2026). "A model for SEI growth based on non-equilibrium thermodynamics." Electrochimica Acta, 149257.
Download Paper