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Author

Yasir Nawaz

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3 papers indexed here

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Aug 2026

A Stable Semi-Implicit Two-Step GFDM for the k–ω Turbulence Model: Positivity, Boundedness, and Energy Stability on Non-Uniform Grids

A modification in explicit, unconditionally stable scheme is proposed for solving timedependent partial differential equations. In contrast to the conventional DuFort–Frankel method, the proposed scheme allows sufficient positivity conditions to be identified for the resulting numerical solution. The proposed scheme is...

Yasir Nawaz · 0 citations
Open access Jul 2026

Mathematical and Numerical Analysis of COVID-19 Epidemic Model with Vaccination and Treatment

This paper introduces a framework that supports the analysis of COVID-19 using an epidemic model that incorporates vaccination and treatment, and demonstrates that the NSFD technique converges, irrespective of the chosen step size.

Raed Hameed Mahdi, S. Zeb, A. Kamran et al. · 1 citation
#diffusion models Open access Aug 2026

Computational modeling of turbulent nanofluid heat transfer over a heated moving surface with local thermal non-equilibrium and machine-learned eddy viscosity

This study presents an adaptive modified Runge-Kutta compact scheme for the numerical simulation of unsteady k − ω turbulent nanofluid flow over a heated moving surface under local thermal non-equilibrium conditions. The surface-interfacial model incorporates mixed convection, viscous dissipation, turbulence transport,...

M. Arif, Yasir Nawaz · 0 citations

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