RESARCH & PUBLICATIONS

Mixed convection heat transfer has been explored numerically in a double-lid driven square cavity containing non – Newtonian power law fluid.

To capture the motion of flexible fin, an arbitrary Lagrangian-Eulerian framework is employed.

A pseudoplastic fluid (n = 0.6) offers better heat transfer rates.

Owing to the inclusion of the flexible fin the thermal performance is maximized, particularly at the natural convection regime.

The periodic oscillation of the thermal field has been elucidated utilizing Fast Fourier Transform (FFT).

Numerical investigation of laminar unsteady mixed convection heat transfer within a long horizontal channel has been conducted. 

An arbitrary Lagrangian-Eulerian approach captures the motion of the periodically placed rotating blades as flow modulators.

The rotating blade offers most effective thermal performance in the forced convection regime.

Higher frequency of blade rotation is conducive to better heat transfer.

In the mixed convection regime, the blade behaves like a turbine since the flow itself is providing energy to facilitate its motion.

Forced convection in a horizontal channel under pulsating flow condition has been explored.

Effect of flexible flow modulator on system’s thermal performance has been studied.

Flow modulator with an optimum flexibility (Cauchy number = 10-5) achieves the best heat transfer.

Vertically oriented modulator offers more heat transfer considering pressure drop.

System with single bottom-wall mounted modulator provides best thermal performance.

Mixed convection heat transfer from a centrally located thin flexible heater in a lid-driven cavity has been explored.

Flexible heaters are more beneficial to better heat transfer.

Elongated heaters adversely affect the thermal performance of the system.

The deformation of the flexible heater is prominent at natural convection regime.

Periodic oscillations of the thermal field is observed specifically for natural convection which is interpreted using FFT.

Thermo-hydraulic properties of a system incorporating a flexible flow modulator under pulsating flow have been investigated.

The oscillatory behavior of the flexible flow modulator is dictated by the pulsating flow frequency.

An optimum pulsation frequency (Strouhal number = 0.2) and amplitude (A = 0.5) offers the best mode of heat transfer.

Highest overall performance is obtained when using an elastic modulator with a 30% system height. 

FFT plots validate the periodicity of thermal fields.

Forced convection in a channel with Poiseuille non-Newtonian flow has been studied.

The effect of an oscillating blade on system’s thermal performance has been explored.

Pseudoplastic fluids (n = 0.6) with higher blockage of the system offer better heat transfer.

Higher blockage ratios are detrimental to efficiency considering pressure drop.

The system with Newtonian fluid and lower blockage is the most thermally efficient.

FFT plots interpret the oscillating nature of thermal frequency.

Study of mixed convection in 2D lid-driven square cavity under laminar flow condition

Comprehensive investigation of fluid-structure interaction in the lid-driven cavity containing non-Newtonian fluids.

Emphasis on the effect of flexible heater on heat transfer performance.

Increasing the flexibility of the plate enhances heat transfer, but also increases structural stress.

Significant improvement in heat transfer, particularly for shear-thinning fluids, depending on the relative strength of mixed convection.

Mixed convection of seawater in a lid-driven hexagonal cavity has been analyzed.

Effects of flow modulation, magnetic field, and Joule heating have been explored.

The cylinder rotation along with the wall motion governs the hydrodynamics.

Thermal performance is maximized for higher Richardson and lower Hartmann numbers.

Magnetic fields are essential for conductive heating through the cylinder.