NAVEEN KUMAR B K
@msrit.edu
Assistant Professor, Department of Mechanical Engineering.
M S RAMAIAH INSTITUTE OF TECHNOLOGY, BENGALURU, KARNATAKA.
EDUCATION
B.E(Mech).,M.Tech(Thermal).,PGDMM(Marketing).,
Scopus Publications
Scopus Publications
G.V. Krishna Reddy, B. K. Naveen Kumar, G. Hareesha, A. M. Rajesh, and Saleemsab Doddamani
Gruppo Italiano Frattura
Al6061 and its composites are widely employed in applications requiring high strength and impact resistance. Heat treatment, particularly ageing, is a well-established method for enhancing the mechanical properties of these composites. However, the influence of post-ageing cooling methods on the impact energy absorption capacity of Al6061 and its composites remains inadequately understood. This investigation aims to examine the impact energy absorption of Al6061 and its composites after ageing at 460°C for 2 hours, employing different cooling methods, including furnace cooling, air cooling, and water cooling. The composites were produced using the stir casting technique with varying weight fractions of graphite and SiC particles based on Taguchi's design of experiments. Charpy impact tests were conducted using a specialised testing machine. The results reveal that the impact energy absorption capacity of the composites is influenced by the cooling method employed after the ageing treatment. Furnace cooling demonstrated the highest impact energy absorption capacity compared to the other cooling methods, exhibiting a 28% increase compared to the monolithic aluminium alloy. Furthermore, it was observed that the impact energy absorption capacity of the composites did not improve with an increase in the weight fraction of SiC particles, while the addition of graphite negatively impacted the absorption capacity.
Hossam A Nabwey, M Girinath Reddy, BK Naveen Kumar, and N Sandeep
SAGE Publications
The total amount of existing solar energy on earth is more than the World's current and estimated energy requirements. The radiative heat from the sun is capable of producing electricity. This study deals with hydrogen energy storage by growing the heat transmission enactment of PTSC (Parabolic Trough Solar Collector) in the presence of thermic heat, resistive heat, buoyancy, magnetic field, and uneven heat sink/source. The Oldroyd-B and Maxwell fluids are the shear-thinning fluids with rheological differences. This study investigates the best heat transfer performer among these two, which helps to enhance the heat transfer in PTSC. A mathematical model was established and resolved numerically to examine this. The study outcomes are deliberated with the assistance of pictorial and numerical evaluations. Thermal radiation with Oldroyd-B fluid combination helps to enhance the heat transmission rate of PTSC to another level.
Vasudeva Reddy Minnam Reddy, Suresh Babu R., Naveen Kumar B. K., and N. Sandeep
Informa UK Limited
Abstract The current work deals with heat diffusion in hyperbolic tangent cylindrical film movement in the occurrence of Darcy, buoyancy, magnetic field, radiative heat, and irregular temperature sink/source. A precise model was recognized to inspect the same and solved numerically through the bvp5c MATLAB scheme. The results are explored for Newtonian and non-Newtonian cases to understand the rheological advantage of hyperbolic tangent fluid. The consequences are pondered with the help of pictographic and mathematical assessments. The liquids with tangent hyperbolic rheological conduct oblige for active heat diffusion rate. Therefore, these fluids can be used in Parabolic Trough Solar Collector for further heat transmission rate and operative usage of solar energy.
Vasudeva Reddy Minnam Reddy, Suresh Babu R., Naveen Kumar B. K., and N. Sandeep
Informa UK Limited
Abstract The conical flow has its significance in the thermal design of high-speed missiles and shock jump conditions. Buoyancy-driven melting heat transfer in hydrodynamic Casson ferroliquid flow over a conical surface is assessed numerically. The buoyancy force, uneven heat sink/source, radiative heat, melting heat, and Ohmic heat are considered physical relevance. The water-based cylindrical-shaped cobalt (Co) nanoparticles are measured. The thermal conductivity of ferrofluid is measured by assessing the Hamilton-Crosser, and interfacial layer approaches. A mathematical model was established and resolved computationally using the Lobatto-IIIA-based Matlab scheme. Simultaneous results are explored and explained with the help of pictorial and mathematical outcomes. The Hamilton-Crosser model reported a higher thermal conductivity than the interfacial layer approach for Casson ferrofluid flow.
Shravan Upadhyaya, Akash Korgal, B.S. Sridhar, and B.K. Naveen Kumar
Elsevier BV
Niranjan Murthy and B.K. Naveenkumar
MAFTREE
An experimental study was carried out to study the effect of multiple jet impingement on a virtual electronic component using water and air as working fluids. It consists of an electrically heated test plate of size 20mm×20mm. Heat flux is varied between 25 to 250W/cm2 was dissipated using 0.25 and 0.5mm diameter jets placed in a 7×7 array with a pitch of 3mm. The difference in temperature between test surface and fluid inlet is within 30 degC for water jets and within 75 degC for air jet experiments. Experiments were conducted by changing the heat flux, flow rate and distance between the test surface and jet exit and [iv] horizontal and vertical positioning of the jets. It was found that heat flux, jet diameter and Reynolds number are important factors in determining the heat transfer. The effects of distance between test surface and jet exit [Z] and positioning of the jets were insignificant. Though the multiple jet impingement heat transfer problem is complex, the heat transfer results could be correlated using a simple relationship in the form of Nu = AqmRen. The constant (m) which indicates the effect of heat flux has the value of 0.8 and 0.9 depending upon the jet diameter and the coolant. The constant (n) which indicates the influence of Reynolds number has the value of 0.25 for both water and air jets. The value of constant (A) is different for water and air jets. The correlation developed in this research work can be effectively used to design multiple water and air jet cooling system for electronic components.
RECENT SCHOLAR PUBLICATIONS
Publications
1. Naveen Kumar B K, Avinash M D, Sushma M S, “LOOSE SAND SELF CONCEALING UNMANNED GROUND VEHICLE (UGV)”. Published at National Conference on “Emerging Cutting Edge Technologies in Mechanical Engineering”, held at NHCE, Bengaluru, India. 13/07/2018.
2. Naveen Kumar B K, Ratnesh Kumar, Rajat Modi, “LOCAL WATER BODIES WASTE COLLECTOR”, Published at “One Day National Conference on Emerging Trends in Mechanical Engineering for UG/PG Students and Research Scholars”, held at Ramaiah Institute of Technology, Bengaluru. 26th June 2019.
3. Naveen Kumar B K, Kevin A Gonsalves, Mohammed Sahil, Mohammad Ashrof, “IMPROVING THE LOAD-CARRYING PERFORMANCE OF BULL BY CHANGING THE EXISTING DESIGN OF THE BULLOCK CART”. Published at “National Conference on Emerging Trends in Design, Simulation & Manufacturing - Key components of Make in India Initiative”, held at Ramaiah Institute of Technology, Bengaluru. 23rd – 24th Nov 2020.
4. Naveen Kumar B K, Nikhil Govind, “DESIGN AND FABRICATION OF ALL TERRAIN VEHICLE USING ROCKER-BOGIE MECHANISM”. Published at “National Conference on Emerging Trends in Design, Simulation & Manufacturing - Key components of Make in India Initiative”, held at Ramaiah Institute of Technology, Bengaluru. 23rd – 24th Nov 2020.
INDUSTRY EXPERIENCE
2 years.