MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202641113335 A) filed by Mr. Sanjeeva Reddy Pannala; Dr G Nageswari; Mr. L Nagaraju; Dr. G. Gangadhar; Mr B Lingaswamy; Mr. V Naveen Kumar; Mr. Jagadish Rao N; and Dr. C. Uma Devi on September 22, 2026, for Computer-Implemented Method And System For Simulating Hybrid Nanofluid Flow And Predicting Wall Shear Stress In A Stenosed Blood Vessel.

Inventors include Mr. Sanjeeva Reddy Pannala; Dr G Nageswari; Mr. L Nagaraju; Dr. G. Gangadhar; Mr B Lingaswamy; Mr. V Naveen Kumar; Mr. Jagadish Rao N; and Dr. C. Uma Devi.

The application for the patent was published on September 25, 2026, under issue no. 39/2026.

Abstract: ABSTRACT A computer-implemented method and system are disclosed for simulating flow of a hybrid nanofluid, carrying two nanoparticle species, through a stenosed blood vessel modelled as a horizontal, rigid-walled tube. Hybrid-nanofluid property ratios are computed from base-fluid and nanoparticle material properties by a two-step mixture model. Temperature and nanoparticle-concentration fields are computed by a Homotopy Analysis Method. The fluid is modelled by a power-law shear-stress relation, and the velocity field is computed as a base-flow component, obtained under a no-slip condition, plus a correction component obtained from the temperature and concentration fields. A wall shear stress is computed by an algebraic relation, exact for any power-law index, obtained by integrating the governing momentum balance once, without requiring the full velocity field. A pressure gradient sustaining a prescribed flow rate is determined numerically at each axial station, from which flow resistance and normalised impedance are computed. The method identifies that normalised impedance varies only weakly with nanoparticle loading relative to flow resistance and wall shear stress, supporting the use of the latter as diagnostic outputs. The computed parameters are useful for cardiovascular risk assessment, evaluation of nanoparticle drug-delivery formulations, and vascular device design.

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