Abdullah Shah

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This paper presents a new version of the upwind compact finite difference scheme for solving the incompressible Navier-Stokes equations in generalized curvi-linear coordinates. The artificial compressibility approach is used, which transforms the elliptic-parabolic equations into the hyperbolic-parabolic ones so that flux difference splitting can be(More)
Keywords: Incompressible Navier–Stokes equation Artificial compressibility method Upwind compact finite difference Flux-difference splitting Dual-time stepping Kovasznay flow problem Oscillating plate Taylor's decaying vortices Doubly periodic shear layer a b s t r a c t This article presents a time-accurate numerical method using high-order accurate(More)
BACKGROUND Green synthesis of nanomaterials finds the edge over chemical methods due to its environmental compatibility. Herein, we report green synthesis of silver nanoparticles (Ag NPs) mediated with dextran. Dextran was used as a stabilizer and capping agent to synthesize Ag NPs using silver nitrate (AgNO3) under diffused sunlight conditions. RESULTS(More)
An enormous amount of long non-coding RNAs (lncRNAs) transcribed from eukaryotic genome are important regulators in different aspects of cellular events. Cytoplasm is the residence and the site of action for many lncRNAs. The cytoplasmic lncRNAs play indispensable roles with multiple molecular mechanisms in animal and human cells. In this review, we mainly(More)
Polysaccharides are attracting the vigil eye of researchers in order to design the green synthesis of silver nanoparticles (Ag NPs) of diverse size, shape, and application. We report an environmentally friendly method to synthesize Ag NPs where no physical reaction conditions were employed. Hydroxypropylcellulose (HPC) was used as a template nanoreactor,(More)
A new version of numerical solver for simulating two-phase incompressible viscous flows is developed in the present study. The governing equations consists of the Navier-Stokes equations with Boussinesq approximation and surface tension terms acting at the interface coupled with the phase field equation representing the moving interface. The system of(More)
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