Debayan Bhowmick

** Computational modeling: Novel model development for accurate prediction of muli-physics problems, including coupled fluid dynamics, heat, and mass transfer.
** Heat transfer applications involving radiative heat transfer, conjugate heat transfer (CHT), mixed/natural convection, and convective heat transfer in electronics cooling, building fires, combustion, etc.
** Turbulent jet flow: Study of turbulent jet flow in an open channel considering differed RANS turbulence models.
** Droplet dynamics: Visualizing the shape of droplets and bubbles under the influence of various external condition using volume of fluid method.

EDUCATION

1. Doctor of Philosophy in Fluids and Thermal Engineering
Department of Mechanical Engineering, National Institute of Technology, Silchar, India
Thesis Title: Numerical investigation of thermo-hydraulic characteristics of flow through partially filled porous media.
2. Integrated Master of Technology in Thermal Engineering
School of Mechanical Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar, India
Cumulative Performance Index: 8.36/10
Thesis: Performance, Combustion and Emission of CI Engine by using, Argemone Mexicana and its blends (B20, B40, B60).
3. Bachelor of Engineering in Mechanical Engineering
School of Mechanical Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar, India.

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Energy, Energy Engineering and Power Technology, Fuel Technology

Scopus Publications

Fabrication and mechanical characterization of hybrid polymer matrix composites
Anil Kumar Panja, Bidesh Bose, Soumyabrata Chakravarty, Arnab Das Sarma, Debayan Bhowmick, Nitesh Kumar
Engineering Research Express, 2025
Epoxy based composites reinforced with natural and synthetic fibres have been studied to assess their suitability for structural applications where both mechanical and sustainability are required. Natural fibres such as hemp and jute have been recognized to show environmental benefits but often limited by lower strength and inconsistent mechanical behaviour. These limitations can be mitigated by fibre hybridisation which combines the ductility of natural fibres with strength and stiffness of synthetic counter reinforcements. In this study, laminates composed of hemp-jute (HJ3), Kevlar (K9), Kevlar—glass (KG5) and hemp—jute—glass (HJG2) have been fabricated by hand layup method and tested under impact, indentation and tensile loading. The highest tensile strength and hardness were recorded in KG5 laminates, while HJ3 composites showed the lowest values in all tests. The HJG2 hybrid laminate demonstrated improved impact energy absorption and high tensile strain, attributed to progressive failure mechanisms and fibre pull-out behaviour. The reduced hardness observed in HJG2 was associated with poor interfacial bonding and non-uniform fibre distribution. These findings indicated that fibre selection and stacking architecture significantly influence composite performance. A balance between mechanical performance and sustainability can be obtained by tailoring fibre combinations. The study supports the broader application of natural—synthetic hybrid composites in engineering system.
Tuning the pin configuration on cold plate for better thermal management of lithium-ion battery
Brajesh Kumar Kanchan, Debayan Bhowmick, Pitambar Randive
Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, 2025
Enhancing cooling performance with the lowest pressure drop characteristics is a persistent problem in battery thermal management systems. The present investigation discusses the design of cooling plate pin configuration, especially for the fast charging–discharging operation of lithium-ion batteries. At first, the effect of pin geometrical configurations, viz. triangular, square, circular and elliptical, are studied for thermohydraulic characteristics. Further, orientation of the pin is investigated for normal and thermal runaway conditions. Furthermore, the effect of discharge rate and flow direction on thermal runaway behavior is also analyzed. Our results reveal that introducing pin on the cooling plate is desirable for better battery thermal management and keeping the battery surface temperature within safety guidelines. Further, the elliptical pin on the cooling plate is found to result in the least pressure drop (+80.46%) among pin configurations considered. The temperature of battery surface is found to be minimum when the pins are oriented at an angle of 90° to a flow direction of 180°, which is recommended particularly for the operation of the battery under thermal runaway. Furthermore, the pin configuration maintained cell surface temperature below 22°C and 75°C during normal and thermal runaway conditions, respectively. Moreover, the maximum pressure drop is found to be 225 and 136 kPa during normal and thermal runaway conditions, respectively.
Effect of non-uniform heating on conjugate heat transfer and entropy generation characteristics within a partially filled porous corrugated channel
Debayan Bhowmick, Pitambar R. Randive
Numerical Heat Transfer Part A Applications, 2025
The persistence of the present numerical investigation is to evaluate the thermal and total entropy generation characteristics of flow within a partially filled porous wavy channel with finite wall thickness subjected to non-uniform wall heat flux. The average Nusselt number and the total entropy generation increase with the permeability value of the porous medium (Da) irrespective of asymmetric wall heat flux amplitude and wavelength as well as with the variation in thickness ratio (δs) and thermal conductivity value of the solid substrate. However, the total irreversibility decreases for a high Darcy number value when the phase angle between the applied heat fluxes is varied. Moreover, the average Nusselt number decreases up to a critical value of phase angle (θH=1350) followed by a gradual increment for Da = 10−5 and 10−3, respectively. On the contrary, the reverse trend can be seen for Da = 10−1. The optimal choice of nonuniform heat flux amplitude, wavelength, and phase angle for a high heat transfer rate with minimum irreversibility generation is found to be 10 W/cm2, 5 mm, and 180°, respectively for a thickness ratio of 0.5 and thermal conductivity value of 646.07 W/m·K independent of Darcy number.
Numerical investigation on effects of swirl and offset ratio on hydro-thermal transport phenomena and irreversibility generation of turbulent jet flow
Debayan Bhowmick, Pitambar Randive, Sukumar Pati
Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, 2024
The combined influence of offset jet and imposition of swirling motion is crucial because many macro-level electronic devices and heat exchanger systems involve such types of configuration. The mutual impact of the offset ratio and swirl number along with a range of Reynolds numbers is taken into account to briefly discuss the primary laws (first and second) of thermodynamics associated with the prescribed problem. An open channel with variable nozzle height is assumed under forced convective flow conditions. The flow physics associated with the prescribed problem has been solved numerically with an improvised [Formula: see text] turbulent (shear stress transport) model. The intricate interplay between the swirl intensity and the offset upon the thermal and entropy generation characteristics has been revealed in the average Nusselt number, local variation of skin friction coefficient, and total entropy generation by varying the distinct embedded control parameters. The results indicate that a higher range of Reynolds number leads to a high value of average Nusselt number unrelatedly of swirl number and offset ratio. However, the improvement of thermal performance does not depend only upon the heat transfer characteristics but also the total irreversibility should be optimized. In that regard, a swirl ratio of 0.5 with an offset ratio of 3 provides optimized configurations irrespective of all other parameters.
Natural Convection Inside a Porous Square Enclosure Embedded with Two Elliptic Cylinders
Ankit Chourasia, Dhrijit Kumar Deka, Debayan Bhowmick, Sukumar Pati, Pitambar R. Randive
Journal of Thermophysics and Heat Transfer, 2022
The present work investigates numerically the implication of aspect ratio of a pair of embedded heated cylinders on natural convection phenomena when they are placed inside a porous square enclosure. The transport characteristics are assessed for a range of aspect ratios of the cylinders (, 0.5, 1, 2, and 4), Darcy numbers , and Rayleigh numbers for a constant value of interspacing distance between the cylinders. The conduction-dominated heat transfer occurs for low-permeable porous media, i.e., , whereas the convection-dominated heat transfer occurs for higher values of ( and ). The aspect ratio of the embedded cylinders and the physicothermal parameters alter the viscous resistance and the buoyancy force acting on the fluid medium within the porous enclosure and hence the heat transfer rate. The variations of time-averaged Nusselt number are different for the two cylinders. For the bottom cylinder the average Nusselt number monotonically increases with the increase in , whereas for the top cylinder the same decreases as long as conduction heat transfer dominates and increases rapidly once the convection heat transfer dominates.
Implication of corrugation profile on thermo-hydraulic characteristics of Cu-water nanofluid flow through partially filled porous channel
Debayan Bhowmick, Pitambar R. Randive, Sukumar Pati
International Communications in Heat and Mass Transfer, 2021
Numerical investigation on the effect of magnetic field on natural convection heat transfer from a pair of embedded cylinders within a porous enclosure
Debayan Bhowmick, Subhasis Chakravarthy, Pitambar R. Randive, Sukumar Pati
Journal of Thermal Analysis and Calorimetry, 2020
Natural convection heat transfer and entropy generation from a heated cylinder of different geometry in an enclosure with non-uniform temperature distribution on the walls
Debayan Bhowmick, Pitambar R. Randive, Sukumar Pati, Himanshu Agrawal, Amit Kumar, Piyush Kumar
Journal of Thermal Analysis and Calorimetry, 2020
Effect of Thickness of Porous Layer on Thermo-Hydraulic Characteristics and Entropy Generation in a Partially Porous Wavy Channel
Debayan Bhowmick, Pitambar R. Randive, Sukumar Pati
Lecture Notes in Mechanical Engineering, 2020

RECENT SCHOLAR PUBLICATIONS

Fabrication and mechanical characterization of hybrid polymer matrix composites
AK Panja, B Bose, S Chakravarty, A Das Sarma, D Bhowmick, N Kumar
Engineering Research Express 7 (3), 035542 , 2025
2025.0
Tuning the pin configuration on cold plate for better thermal management of lithium-ion battery
BK Kanchan, D Bhowmick, P Randive
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2025
2025.0
Citations: 3
Effect of non-uniform heating on conjugate heat transfer and entropy generation characteristics within a partially filled porous corrugated channel
D Bhowmick, PR Randive
Numerical Heat Transfer, Part A: Applications 86 (1), 50-72 , 2025
2025.0
Citations: 7
Numerical investigation on effects of swirl and offset ratio on hydro-thermal transport phenomena and irreversibility generation of turbulent jet flow
D Bhowmick, P Randive, S Pati
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2024
2024.0
Natural convection inside a porous square enclosure embedded with two elliptic cylinders
A Chourasia, D Kumar Deka, D Bhowmick, S Pati, PR Randive
Journal of Thermophysics and Heat Transfer 36 (3), 745-762 , 2022
2022.0
Citations: 6
Implication of corrugation profile on thermo-hydraulic characteristics of Cu-water nanofluid flow through partially filled porous channel
D Bhowmick, PR Randive, S Pati
International communications in heat and mass transfer 125, 105329 , 2021
2021.0
Citations: 50
Numerical investigation on the effect of magnetic field on natural convection heat transfer from a pair of embedded cylinders within a porous enclosure: D. Bhowmick et al.
D Bhowmick, S Chakravarthy, PR Randive, S Pati
Journal of Thermal Analysis and Calorimetry 141 (6), 2405-2427 , 2020
2020.0
Citations: 35
Natural convection heat transfer and entropy generation from a heated cylinder of different geometry in an enclosure with non-uniform temperature distribution on the walls: D …
D Bhowmick, PR Randive, S Pati, H Agrawal, A Kumar, P Kumar
Journal of Thermal Analysis and Calorimetry 141 (2), 839-857 , 2020
2020.0
Citations: 57
Effect of thickness of porous layer on thermo-hydraulic characteristics and entropy generation in a partially porous wavy channel
D Bhowmick, PR Randive, S Pati
Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 119-130 , 2020
2020.0
Citations: 12
Numerical Investigation on Influence of Porous Layer on Fluid Flow and Heat Transfer Characteristics in a Partially Porous Wavy Channel
D Bhowmick, PR Randive, S Pati
Energy 3 (150ε), 5 , 0

MOST CITED SCHOLAR PUBLICATIONS

Natural convection heat transfer and entropy generation from a heated cylinder of different geometry in an enclosure with non-uniform temperature distribution on the walls: D …
D Bhowmick, PR Randive, S Pati, H Agrawal, A Kumar, P Kumar
Journal of Thermal Analysis and Calorimetry 141 (2), 839-857 , 2020
2020.0
Citations: 57
Implication of corrugation profile on thermo-hydraulic characteristics of Cu-water nanofluid flow through partially filled porous channel
D Bhowmick, PR Randive, S Pati
International communications in heat and mass transfer 125, 105329 , 2021
2021.0
Citations: 50
Numerical investigation on the effect of magnetic field on natural convection heat transfer from a pair of embedded cylinders within a porous enclosure: D. Bhowmick et al.
D Bhowmick, S Chakravarthy, PR Randive, S Pati
Journal of Thermal Analysis and Calorimetry 141 (6), 2405-2427 , 2020
2020.0
Citations: 35
Effect of thickness of porous layer on thermo-hydraulic characteristics and entropy generation in a partially porous wavy channel
D Bhowmick, PR Randive, S Pati
Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 119-130 , 2020
2020.0
Citations: 12
Effect of non-uniform heating on conjugate heat transfer and entropy generation characteristics within a partially filled porous corrugated channel
D Bhowmick, PR Randive
Numerical Heat Transfer, Part A: Applications 86 (1), 50-72 , 2025
2025.0
Citations: 7
Natural convection inside a porous square enclosure embedded with two elliptic cylinders
A Chourasia, D Kumar Deka, D Bhowmick, S Pati, PR Randive
Journal of Thermophysics and Heat Transfer 36 (3), 745-762 , 2022
2022.0
Citations: 6
Tuning the pin configuration on cold plate for better thermal management of lithium-ion battery
BK Kanchan, D Bhowmick, P Randive
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2025
2025.0
Citations: 3
Fabrication and mechanical characterization of hybrid polymer matrix composites
AK Panja, B Bose, S Chakravarty, A Das Sarma, D Bhowmick, N Kumar
Engineering Research Express 7 (3), 035542 , 2025
2025.0
Numerical investigation on effects of swirl and offset ratio on hydro-thermal transport phenomena and irreversibility generation of turbulent jet flow
D Bhowmick, P Randive, S Pati
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2024
2024.0
Numerical Investigation on Influence of Porous Layer on Fluid Flow and Heat Transfer Characteristics in a Partially Porous Wavy Channel
D Bhowmick, PR Randive, S Pati
Energy 3 (150ε), 5 , 0