A numerical study on water-based hybrid nanofluid flow with chemical reaction

Abstract This paper presents a mathematical modeling and numerical investigation of the Nusselt number for a Cu − MoS2 and water-based hybrid nanofluid using the spectral method. A nonlinear stretching sheet is considered as the flow domain, and the governing partial differential equations are trans...

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Bibliographic Details
Main Authors: Anjan Samanta, Hiranmoy Mondal, Sabyasachi Mondal
Format: Article
Language:English
Published: Springer Nature 2025-07-01
Series:Discover Molecules
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Online Access:https://doi.org/10.1007/s44345-025-00029-5
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Summary:Abstract This paper presents a mathematical modeling and numerical investigation of the Nusselt number for a Cu − MoS2 and water-based hybrid nanofluid using the spectral method. A nonlinear stretching sheet is considered as the flow domain, and the governing partial differential equations are transformed into a system of ordinary differential equations using a suitable similarity transformation. To solve the system efficiently, a Chebyshev polynomial based numerical approach, the Spectral Quasilinearization Method (SQLM), is implemented. The novelty of this work lies in the application of SQLM for hybrid nanofluid heat transfer analysis, offering improved accuracy and computational efficiency compared to conventional methods. The results reveal that the Nusselt number (Nu) increases significantly with the suction parameter (S) within the range [2.5, 7.5], with the most pronounced effect observed due to sheet expansion ( $$\varepsilon$$  ), while the influence of M and λ remains comparatively weaker. The findings provide valuable insights for optimizing heat transfer in industrial applications, including cooling systems, thermal energy storage, and advanced manufacturing processes.
ISSN:3004-9350