30/12/2025
It is a pleasure to announce that Mr. Anjan Samanta has successfully completed his Ph.D., with his doctoral research focusing on experimental, numerical, and data-driven investigations of turbulent flow past two horizontal cylinders.
His thesis presents a comprehensive analysis of turbulence characteristics and heat transfer over a rough-bed configuration with double cylinders of varying diameters. Advanced turbulence diagnostics were employed to estimate the turbulent kinetic energy (TKE) dissipation rate, using velocity gradient methods and validating them through Kolmogorov’s two-thirds law, −5/3 spectral law, structure functions, and power spectra. The study further examines stress and dissipation anisotropy, correlation characteristics, and location-wise turbulence behavior using anisotropic invariant maps, barycentric coordinates, and tensor-based analyses.
A detailed investigation of bursting events revealed the dominant role of sweep events in enhancing Reynolds shear stress in the near-wake region. Higher-order statistical moments and residual shear stress analyses were used to validate these findings. In addition, mixed convection and heat transfer in a driven cavity with double cylinders were numerically analyzed using a Galerkin-based finite element framework, and predictive modeling of turbulence and thermal fields was performed using machine learning and deep learning techniques.
The outcomes of this research open directions for extending data-driven turbulence modeling to more complex multi-body configurations and coupled flow–thermal systems, with potential applications in energy, environmental, and industrial flow engineering.
for his achievements. Wish him all the very best for his future endeavor. ✨✨✨
