Raman Kumar

ORCID: 0000-0002-5040-7920
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About
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Research Areas
  • Additive Manufacturing and 3D Printing Technologies
  • Nanofluid Flow and Heat Transfer
  • Heat Transfer Mechanisms
  • Heat Transfer and Optimization
  • Fluid Dynamics and Turbulent Flows
  • Advanced Machining and Optimization Techniques
  • Manufacturing Process and Optimization
  • Innovations in Concrete and Construction Materials
  • Quality and Supply Management
  • Additive Manufacturing Materials and Processes
  • Advanced machining processes and optimization
  • Natural Fiber Reinforced Composites
  • Injection Molding Process and Properties
  • Aluminum Alloys Composites Properties
  • Innovative concrete reinforcement materials
  • Advanced Welding Techniques Analysis
  • Structural Behavior of Reinforced Concrete
  • Multi-Criteria Decision Making
  • Digital Transformation in Industry
  • Welding Techniques and Residual Stresses
  • Sustainable Supply Chain Management
  • Quality Function Deployment in Product Design
  • Geotechnical Engineering and Soil Stabilization
  • Management and Optimization Techniques
  • Optimization and Mathematical Programming

Sunway University
2024-2025

Rayat Bahra University
2024-2025

Sohar University
2024-2025

Chandigarh University
2013-2024

Centre for Research and Development
2024

Lovely Professional University
2015-2023

Davangere University
2021-2023

Amrita Vishwa Vidyapeetham
2023

KLE Technological University
2023

Punjab Technical University
2014-2018

Abstract Fins are widely used in many industrial applications, including heat exchangers. They benefit from a relatively economical design cost, lightweight, and quite miniature. Thus, this study investigates the influence of wavy fin structure subjected to convective effects with internal generation. The thermal distribution, considered steady condition one dimension, is described by unique implementation physics-informed neural network (PINN) as part machine-learning intelligent strategies...

10.1038/s41598-024-57772-x article EN cc-by Scientific Reports 2024-03-25

The consequence of thermal performance and mass distribution endothermic/exothermic chemical reaction pollutant concentration on the nanoliquid stream via cylinder/plate in presence permeable media is explored present study. advancement efficient waste disposal pollution prevention techniques might result from studies fluid flow dispersion contaminants cylinders plates. Further, TiO2 nanoparticle offers improved conductivity, helps wide range technological industrial applications. governing...

10.1016/j.csite.2024.104336 article EN cc-by-nc Case Studies in Thermal Engineering 2024-04-01

This study investigates the enhancement of mechanical properties metal/polymer composites produced through fused deposition modeling and prediction ultimate tensile strength (UTS) by machine learning using a Classification Regression Tree (CART). The composites, comprising 80% acrylonitrile butadiene styrene matrix 10% each aluminum (Al) copper (Cu) fillers, were subjected to comprehensive exploration printing parameters, including temperature, infill pattern, density Taguchi method. CART...

10.1063/5.0207551 article EN cc-by AIP Advances 2024-05-01

Purpose Resistance spot welding (RSW) is an essential process in the automobile sector to join components. The steel principal material utilized car generation because of its high obstruction against erosion, toughness, ease support and recuperation potential. Due this, it was planned study mechanical properties, hardness microstructure characteristics RSW Stainless 304. Design/methodology/approach In present research, 304 stainless plates with 1 mm thickness effect current intensity, time,...

10.1108/ijsi-03-2020-0031 article EN International Journal of Structural Integrity 2020-05-13

This article presents an experimental investigation to assess the influence of input process parameters machinability wire electrical discharge machining (WEDM) for triple-reinforced silicon carbide, graphite, and iron oxide hybrid aluminum (Al-6061) metal matrix composites. The composite work specimens, developed using stir casting process, have been processed through WEDM by adopting a statistically controlled design experimentation approach. Furthermore, analysis variance regression...

10.1177/2633366x20963137 article EN Advanced Composites Letters 2020-01-01

Fused filament fabrication (FFF), a portable, clean, low cost and flexible 3D printing technique, finds enormous applications in different sectors. The process has the ability to create ready use tailor-made products within few hours, acrylonitrile butadiene styrene (ABS) is extensively employed FFF due high impact resistance toughness. However, this technology certain inherent limitations, such as poor mechanical strength surface finish, which can be improved by optimizing parameters. As...

10.3390/polym12102250 article EN Polymers 2020-09-30

Despite several additive manufacturing techniques are commercially available in market, Fused Deposition Modeling (FDM) is increasingly used by researchers and engineers for new product development. FDM an established process with a plethora of advantages, but the visible surface roughness (SR), being intrinsic limitation, major barrier against utilization fabricated parts practical applications. In present study, chemical finishing method, using vapour acetone mixed heated air, used. The...

10.3390/ma13225176 article EN Materials 2020-11-17

Squeezing flow of Casson liquid between two disks is a practical application in compression, polymer processing and injection molding. In this paper, the convectively heated analyzed using Buongiorno model. Further, heat mass transport analysis done by considering impact source/sink activation energy. The continuity momentum equations governing unsteady two-dimensional are derived conservative laws. reformulated similarity transformations solved numerically with MATLAB routine bvp4c. effect...

10.1142/s0217979223500315 article EN International Journal of Modern Physics B 2022-09-12

Abstract Aluminum hybrid composites have the potential to satisfy emerging demands of lightweight materials with enhanced mechanical properties and lower manufacturing costs. There is an inclusion reinforcing variable concentrations for preparation metal matrix attain customized properties. Hence, it obligatory investigate impact different machining conditions selection optimum parameter settings aluminum-based composite material. The present study aims identify parameters during wire...

10.1007/s13369-021-05865-4 article EN cc-by Arabian Journal for Science and Engineering 2021-07-07

The novel exploration designates temperature variation through an inclined porous longitudinal fine with convective radiative phenomenon. Rosseland approximation is considered for the radiation heat exchange. Using non-dimensional terms, existing system of stated problem reduced to ordinary form. To resolve nonlinear transfer, analytical approaches, differential transform method (DTM) Pade approximant has been workout. Furthermore, simulations are developed examine outcomes convincing flow...

10.1016/j.csite.2022.101846 article EN cc-by Case Studies in Thermal Engineering 2022-02-03

The need for efficient heating and cooling systems in the automotive, aerospace, chemical industries is driving growth of heat transfer technologies. hybrid nanomaterials are preferred over traditional nanofluids due to their exceptional thermal effectiveness. Keeping mind systems, flow model based on nanoparticles (GO-MoS2) immersed base liquid C2H6O2−H2O presented this novel attempt by considering influence homogeneous–heterogeneous (H–H) reactions Hall current with a magnetohydrodynamic...

10.1080/17455030.2021.1985746 article EN Waves in Random and Complex Media 2021-10-19

Abstract The present work investigates the thermophoresis and Brownian motion effects in nanofluid flow over a curved stretching sheet (CSS). Also, Cattaneo–Christov heat flux Stefan blowing (SB) conditions are considered for studying mass transport characteristics. work's novelty is associated with considerations of convective boundary SB nanomaterial CSS. coupled partial differential equations changed to ordinary by employing suitable similarity variables, resultant model numerically...

10.1002/htj.22532 article EN Heat Transfer 2022-04-02

Fused deposition modelling (FDM) is a technique of additive manufacturing used to fabricate 3D (three-dimensional) model with layer-by-layer required materials less material wastage. FDM make any objects meager cost, but also there are some negative points related strength, accuracy, and surface finish. In this study, acrylonitrile butadiene styrene (ABS) printed using an printer investigate the effects various changing parameters like nozzle temperature (°C), infill pattern, printing speed...

10.1155/2022/2698845 article EN Mathematical Problems in Engineering 2022-03-11

Concrete is a composite material that commonly used in the construction industry. It will certainly be exposed to fires of varying intensities when buildings and industries. The major goal this article was look into influence mineral additions such as foundry sand marble dust on residual characteristics concrete. To examine behavior concrete after fire exposure, substituted for cement fine amounts ranging from 0% 20%. aided better disposal waste so it might an addition. purpose experiment...

10.3390/ma15103632 article EN Materials 2022-05-19

In the growing need for energy and heightened environmental considerations, effective control optimization of thermal processes transferring mass are utmost importance. Engine oil water-based nanofluids have emerged as potential solutions various industrial applications, from generation to sophisticated manufacturing. Because these demands, current work aims explore significance its research field, providing insights into crucial elements heat transport properties in presence hybrid...

10.1016/j.csite.2023.103892 article EN cc-by-nc-nd Case Studies in Thermal Engineering 2023-12-10

The utilization of Maxwell fluid with nanoparticle suspension exhibits promising prospects in enhancing the efficacy energy conversion and storage mechanisms. They have potential to be utilized sophisticated cooling systems for power generation facilities, thereby augmenting overall efficacy. Keeping this mind, current research examines nanofluid flow over a rotating disk impact heat source/sink. present study centers on examination characteristics existence uniform magnetic field. governing...

10.1016/j.heliyon.2023.e21189 article EN cc-by-nc-nd Heliyon 2023-10-23

This study used a hybrid combination of kenaf and hemp fibers the multi-walled carbon nanotube (MWCNT) reinforcements in matrix phase to synthesize composites. A kenaf/hemp fiber blend with MWCNTs epoxy was for specific concentration. The procedure three composite materials chosen from pilot trials. ratio MWCNT filler particles altered up agglomeration limit based on initial Two specimens (2 3) were supplemented concentration range 0.5 wt. % 1 %, being maintained equilibrium resin, all...

10.3390/jcs7080324 article EN Journal of Composites Science 2023-08-07

The present article mainly focuses on the transient thermal dispersal within a moving plate using non-Fourier heat flux model. Furthermore, innovative, sophisticated artificial neural network strategy with Levenberg-Marquardt backpropagated scheme (ANNS-LMBS) is proposed for determining temperature in convective-radiative plate. Using dimensionless terms, energy model exchange simplified into non-dimensional form. arising partial differential equation (PDE) then numerically tackled finite...

10.3390/math11020438 article EN cc-by Mathematics 2023-01-13

Abstract This study emphasizes the aspects of heat transfer and transient thermal distribution through a rectangular fin profile when stretching or shrinking mechanism is mounted on surface fin. Furthermore, effects radiation, internal generation, convection are all considered developing corresponding problem. The simulated time-dependent equation partial differential that can be represented by dimensionless arrangement using appropriate nondimensional terms. nonlinear problem concerning...

10.1115/1.4062215 article EN ASME Journal of Heat and Mass Transfer 2023-03-28
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