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Theoretical study on magneto-hydrodynamic squeeze film flow of piezo-viscous micropolar fluid between annular disks

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  • Velisoju, Swathi
  • J. V., Ramana Murthy

Abstract

This study presents an analytical investigation of micropolar fluid-based squeeze film lubrication between annular parallel disks, incorporating the effects of pressure-dependent viscosity (piezo-viscous effect) and a uniform magnetic field. The upper disk moves toward the fixed lower disk at a constant velocity. A modified Reynolds equation is derived using a perturbation technique to evaluate the influence of micropolar characteristics, piezo-viscous dependency, and magnetic field intensity on pressure distribution, load capacity, and squeeze film response time. The findings indicate that micropolar fluids enhance load-bearing capacity due to their microstructural effects. Pressure-dependent viscosity enhances pressure buildup under heavy loads, while the magnetic field improves overall performance, making the setup apt for precision applications.

Suggested Citation

  • Velisoju, Swathi & J. V., Ramana Murthy, 2026. "Theoretical study on magneto-hydrodynamic squeeze film flow of piezo-viscous micropolar fluid between annular disks," Chaos, Solitons & Fractals, Elsevier, vol. 203(C).
    • Handle: RePEc:eee:chsofr:v:203:y:2026:i:c:s0960077925016509
    DOI: 10.1016/j.chaos.2025.117637
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