Browsing by Author "Saxena, Kuldeep K."
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Dynamics of MHD Convection of Walters B Viscoelastic Fluid through an Accelerating Permeable Surface Using the Soret–Dufour MechanismPublication . Anusha, P.; Sri, M. Naga Swapna; Madhav, V.V. Venu; Chaitanya, Ch. Sri; Spandana, V.V.; Saxena, Kuldeep K.; Abdul-Zahra, Dalael Saad; Linul, Emanoil; Prakash, Chander; Budhi, Dharam; Campilho, RaulThe MHD convective Walters-B memory liquid flow past a permeable accelerating surface with the mechanism of Soret-Dufour is considered. The flow equation constitutes a set of partial differential equations (PDEs) to elucidate the real flow of a non-Newtonian liquid. The radiation thermo-physical parameters were employed based on the use of Roseland approximation. This implies the fluid employed in this exploration is optically thick. Utilizing suitable similarity terms, the flow equation PDEs were simplified to become total differential equations. The spectral homotopy analysis method (SHAM) was utilized to provide outcomes to the model. The SHAM involves the addition of the Chebyshev pseudospectral approach (CPM) alongside the homotopy analysis approach (HAM). The outcomes were depicted utilizing graphs and tables for the quantities of engineering concern. The mechanisms of Soret and Dufour were separately examined. The imposed magnetism was found to lessen the velocity plot while the thermal radiation term elevates the temperature plot because of the warm particles of the fluid.
- Electrical Discharge Coating a Potential Surface Engineering Technique: A State of the ArtPublication . Tyagi, Rashi; Mandal, Amitava; Das, Alok Kumar; Tripathi, Ashutosh; Prakash, Chander; Campilho, Raul; Saxena, Kuldeep K.Electrical discharge coating (EDC) process is used to deposit material on workpiece surface from sacrificial or green compact tool electrode in an electrical discharge machine. The paper presents the mechanism of EDC using green compact electrode and powder mixed dielectric methods. The tool electrode material, electrode size, process parameters, and type of dielectrics can directly affect the surface integrity of workpiece. Here, a process map of EDC as a function of process parameters, its classification, advantages, and applications for a wide range of engineering materials offers a proper template for the evaluation of coating phenomena. This study shows that EDC is an economic process as compared to other costlier techniques. Additionally, the effect of various EDM and EDC parameters on surface integrity and tribological behavior of deposited coatings is studied with their pros and cons. Finally, the current research trends of EDC and its challenges are elaborated.