Deepak Kumar Pandey

This paper reports investigations related to addressing the cause of pinion teeth deformation of a helical reduction gearbox in a kraft process. The American Gear Manufacturers Association (AGMA) design methodology was employed to determine the safety factor under bending and surface fatigue strengths of a pinion and gear at two operating loads (3...

This paper presents the comparative performance findings achieved during the dry turning (termed as green machining) of mild steel rods (Material: C-20, Rod diameter=20 mm) employing conventional and scorpion textured surfaces on cutting tungsten carbide inserts. Cutting forces, wear of inserts, chip's temperature rise and surface finish of machine...

Cavitation generates intense localized shear & finds a wide range of applications such as emulsions etc. It is essential to develop quantitative understanding of microscale processes caused by collapsing cavity and how these interact with dispersed phase droplet. In this work, we used volume of fluid approach and carried out CFD simulations of a ca...

Introduction Liquid-liquid emulsions are used in several commercially important products, e.g., personal care (cosmetics), food (milk products, ice creams) and home care (paints, room fresheners), etc. The emulsions are produced by several conventional methods and equipment, i.e., rotor-stator, high-pressure homogeniser, micro fluidization, colloid...

Numerical studies were conducted on the hydrodynamics of a freely falling rigid sphere in bounded and unbounded water domains to investigate the drag coefficient, normalized velocity, pressure coefficient, and skin friction coefficient as a function of dimensionless time. The bounded domain was simulated by bringing the cylindrical water container'...

The flow fields around a freely falling rigid sphere slamming onto a water surface in the bounded and unbounded domains were investigated using the shear stress transport 𝑘−𝜔 k − ω improved delayed detached eddy simulation model. Based on the velocity of the sphere for all the domain cases, the Reynolds number was set equal to 106 in the investigat...