Badyanath Tiwary

@iitm.ac.in

Institute Post Doctoral Fellow, Department of Mechanical engineering
IIT Madras

Badyanath Tiwary


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https://researchid.co/tiwary21

RESEARCH INTERESTS

Heat Transfer, Thermal management, Microfluidics and nanofluids, desalination, CFD
10

Scopus Publications

185

Scholar Citations

7

Scholar h-index

5

Scholar i10-index

Scopus Publications

  • Parametric Influence on the Thermofluidic Characteristics of the Branched Wavy Heat Sink
    Ritesh Kumar, Badyanath Tiwary, Pawan Kumar Singh
    Journal of Thermal Science and Engineering Applications, 2024
    The branched wavy heat sink (BWHS) is found as a novel design for heat sink application. The aim of this paper is first to investigate the optimum branch angle by varying the branch angle while keeping the constant parametric value such as pitch, wavelength, and secondary width; the idea was established, and we found that a 45-deg branch angle is the best among other branch angles. After that, we varied the next important parametric value, i.e., secondary width, to know the optimum secondary width. Four secondary pass angle (branch angle) configurations (25 deg, 35 deg, 45 deg, and 55 deg) were proposed and numerically investigated by keeping the constant parametric value. The RNG k–ɛ model has been employed with the full domain model approach in the computational analysis. Further, the optimum branch angle has also been investigated with the varying secondary width. The secondary flowrates were strongly affected in all the cases. The pressure loss increases as the secondary pass angle increases. However, a secondary pass maintains pressure uniformity in the spanwise direction through flow migration. It is clear that raising the secondary pass angle reduces the hot spot region. Finally, the optimum branch angle has also been investigated with varying secondary widths of 0.5 mm, 0.25 mm, and 0.20 mm. According to the thermofluidic study, the BWHS design with 45-deg angle and 0.25-mm secondary width has better heat convection performance among all. With a 2% volumetric concentration of nanofluid, the heat transfer rate improves by about 10% compared to water. As a result, the 45-deg BWHS presents a viable avenue for further study. The heat transfer rate of the microchannel heat sink (MCHS) is greatly aided by secondary flow mixing. The branched wavy heat sinks (BWHSs) under forced convection with water/Al2O3 under the Re = 100–500 have been investigated.
  • Influence of oblique angle variations on the thermo-hydraulic characteristics of the oblique fin heat sink with Al2O3 water nanofluid
    Badyanath Tiwary, Ritesh Kumar, Pawan Kumar Singh
    Numerical Heat Transfer Part A Applications, 2023
  • Thermofluidic analysis of Al2O3-water nanofluid cooled branched wavy heat sink
    Ritesh Kumar, Badyanath Tiwary, Pawan Kumar Singh
    Applied Thermal Engineering, 2022
  • Thermofluidic characteristic of a nanofluid-cooled oblique fin heat sink: An experimental and numerical investigation
    Badyanath Tiwary, Ritesh Kumar, Pawan Kumar Singh
    International Journal of Thermal Sciences, 2022
  • Influence of secondary pass location on thermo-fluidic characteristic on the novel air-cooled branched wavy minichannel heat sink: A comprehensive numerical and experimental analysis
    Ritesh Kumar, Badyanath Tiwary, Pawan Kumar Singh
    Applied Thermal Engineering, 2021
  • Rheological characteristics of CeO2, Al2O3 and their hybrid mixture in ethylene glycol base fluid in the wide range of temperature and concentration
    Devendra Yadav, Ritesh Kumar, Badyanath Tiwary, Pawan Kumar Singh
    Journal of Thermal Analysis and Calorimetry, 2021
  • Effect of Varying Oblique Angle on Heat Transfer Enhancement in Oblique Channel
    Badyanath Tiwary, Ritesh Kumar, Pawan K. Singh
    Lecture Notes in Mechanical Engineering, 2020
  • Parametric Study of Wavy Microchannel Using Nanofluid
    Ritesh Kumar, Badyanath Tiwary, Pawan K. Singh
    Lecture Notes in Mechanical Engineering, 2020
  • Numerical investigation of thermal and hydraulic performance in novel oblique geometry using nanofluid
    Badyanath Tiwary, Ritesh Kumar, Poh Seng Lee, Pawan Kumar Singh
    Numerical Heat Transfer Part A Applications, 2019
    To capitalize the advantage of oblique fin heat sink (OFHS) with Al2O3–water nanofluids of different volumetric concentration (1, 2, and 4%), a comprehensive computational analysis has been performed for OFHS with nanofluid through the single-phase modeling. The present investigation focuses on the full domain simulation because the conventional periodic computational model approach is unable to investigate the flow migration effect and predicts higher value of Nusselt number. Apart from the disruption of boundary layer, vortices are observed in the secondary oblique channel due to flow separation that promotes an additional heat transfer enhancement. Higher Severity of the flow migration and hence more non-uniformity of nanofluid flow rate through the primary and secondary channels was observed at higher Reynolds numbers. The increment observed in the average Nusselt number (Nuavg) at Re = 750 for OFHS is about 90% and 115% for water and 4% volumetric concentration of nanofluid respectively compared to conventional SCHS. Also, Al2O3–water nanofluid exhibits about 30% higher enhancement at 4% volumetric concentration at Re = 750 in the OFHS with compared to water. The increase in heat transfer exceeded the pressure drop penalty at all the Reynolds numbers.
  • Heat transfer enhancement in oblique finned channel
    Badyanath Tiwary, Ritesh Kumar, Pawan Kumar Singh
    Lecture Notes in Mechanical Engineering, 2019

RECENT SCHOLAR PUBLICATIONS

  • Parametric influence on the thermofluidic characteristics of the branched wavy heat sink
    R Kumar, B Tiwary, PK Singh
    Journal of Thermal Science and Engineering Applications 16 (4), 041004 , 2024
    2024
    Citations: 3
  • Influence of oblique angle variations on the thermo-hydraulic characteristics of the oblique fin heat sink with Al 2 O 3 water nanofluid
    B Tiwary, R Kumar, PK Singh
    Numerical Heat Transfer, Part A: Applications 84 (5), 413-432 , 2023
    2023
    Citations: 8
  • Studies on metal foamed plate heat exchanger
    B Tiwary, N Chandora, A Mani
    International Symposium on Compact solar desalination and cold storage … , 2022
    2022
  • Thermofluidic analysis of Al2O3-water nanofluid cooled branched wavy heat sink
    R Kumar, B Tiwary, PK Singh
    Applied Thermal Engineering 201, 117787 , 2022
    2022
    Citations: 44
  • Thermofluidic investigation of oblique fin heat sinks with nanofluids
    B Tiwary
    Dhanbad , 2022
    2022
  • Thermofluidic characteristic of a nanofluid-cooled oblique fin heat sink: an experimental and numerical investigation
    B Tiwary, R Kumar, PK Singh
    International Journal of Thermal Sciences 171, 107214 , 2022
    2022
    Citations: 54
  • Influence of secondary pass location on thermo-fluidic characteristic on the novel air-cooled branched wavy minichannel heat sink: a comprehensive numerical and experimental …
    R Kumar, B Tiwary, PK Singh
    Applied Thermal Engineering 182, 115994 , 2021
    2021
    Citations: 35
  • Rheological characteristics of CeO 2 , Al 2 O 3 and their hybrid mixture in ethylene glycol base fluid in the wide range of temperature and concentration: D. Yadav et al.
    D Yadav, R Kumar, B Tiwary, PK Singh
    Journal of Thermal Analysis and Calorimetry 143 (2), 1003-1019 , 2021
    2021
    Citations: 21
  • Investigation of Heat Transfer Enhancement in Air-cooled Novel Wavy Geometry
    R Kumar, B Tiwary, PK Singh
    Proceedings of the 8th International and 47th National Conference on Fluid … , 2020
    2020
  • Parametric Study of Wavy Microchannel Using Nanofluid
    R Kumar, B Tiwary, PK Singh
    Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 931-940 , 2020
    2020
  • Effect of Varying Oblique Angle on Heat Transfer Enhancement in Oblique Channel
    B Tiwary, R Kumar, PK Singh
    Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 845-855 , 2020
    2020
  • Parametric Investigation on Thermal Performance in Novel Oblique Geometry with Nanofluids
    B Tiwary, R Kumar, PK Singh
    25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer … , 2019
    2019
  • Investigation of Thermal Performance in Novel Wavy Geometry with Nanofluids
    R Kumar, B Tiwary, PK Singh
    25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer … , 2019
    2019
  • Numerical investigation of thermal and hydraulic performance in novel oblique geometry using nanofluid
    B Tiwary, R Kumar, PS Lee, PK Singh
    Numerical Heat Transfer, Part A: Applications 76 (7), 533-551 , 2019
    2019
    Citations: 10
  • Heat transfer enhancement in oblique finned channel
    B Tiwary, R Kumar, PK Singh
    Advances in Fluid and Thermal Engineering: Select Proceedings of FLAME 2018 … , 2019
    2019
    Citations: 7
  • Scaling Analysis of Nanofluid Flowing Inside a Circular Micro Channel
    D Yadav, B Tiwary, DS Naruka, PK Singh
    Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and … , 2019
    2019
    Citations: 3
  • Effect of varying oblique width on Heat Transfer Enhancement of oblique Channel with Nanofluid
    B Tiwary, R Kumar, PK Singh
    7th International & 45th National Conference on Fluid Mechanics & Fluid … , 2018
    2018
  • Effect of Wavy Microhannel on Heat Transfer Performance with Nanofluid
    R Kumar, B Tiwary, PK Singh
    7th International & 45th National Conference on Fluid Mechanics & Fluid … , 2018
    2018

MOST CITED SCHOLAR PUBLICATIONS

  • Thermofluidic characteristic of a nanofluid-cooled oblique fin heat sink: an experimental and numerical investigation
    B Tiwary, R Kumar, PK Singh
    International Journal of Thermal Sciences 171, 107214 , 2022
    2022
    Citations: 54
  • Thermofluidic analysis of Al2O3-water nanofluid cooled branched wavy heat sink
    R Kumar, B Tiwary, PK Singh
    Applied Thermal Engineering 201, 117787 , 2022
    2022
    Citations: 44
  • Influence of secondary pass location on thermo-fluidic characteristic on the novel air-cooled branched wavy minichannel heat sink: a comprehensive numerical and experimental …
    R Kumar, B Tiwary, PK Singh
    Applied Thermal Engineering 182, 115994 , 2021
    2021
    Citations: 35
  • Rheological characteristics of CeO 2 , Al 2 O 3 and their hybrid mixture in ethylene glycol base fluid in the wide range of temperature and concentration: D. Yadav et al.
    D Yadav, R Kumar, B Tiwary, PK Singh
    Journal of Thermal Analysis and Calorimetry 143 (2), 1003-1019 , 2021
    2021
    Citations: 21
  • Numerical investigation of thermal and hydraulic performance in novel oblique geometry using nanofluid
    B Tiwary, R Kumar, PS Lee, PK Singh
    Numerical Heat Transfer, Part A: Applications 76 (7), 533-551 , 2019
    2019
    Citations: 10
  • Influence of oblique angle variations on the thermo-hydraulic characteristics of the oblique fin heat sink with Al 2 O 3 water nanofluid
    B Tiwary, R Kumar, PK Singh
    Numerical Heat Transfer, Part A: Applications 84 (5), 413-432 , 2023
    2023
    Citations: 8
  • Heat transfer enhancement in oblique finned channel
    B Tiwary, R Kumar, PK Singh
    Advances in Fluid and Thermal Engineering: Select Proceedings of FLAME 2018 … , 2019
    2019
    Citations: 7
  • Parametric influence on the thermofluidic characteristics of the branched wavy heat sink
    R Kumar, B Tiwary, PK Singh
    Journal of Thermal Science and Engineering Applications 16 (4), 041004 , 2024
    2024
    Citations: 3
  • Scaling Analysis of Nanofluid Flowing Inside a Circular Micro Channel
    D Yadav, B Tiwary, DS Naruka, PK Singh
    Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and … , 2019
    2019
    Citations: 3
  • Studies on metal foamed plate heat exchanger
    B Tiwary, N Chandora, A Mani
    International Symposium on Compact solar desalination and cold storage … , 2022
    2022
  • Thermofluidic investigation of oblique fin heat sinks with nanofluids
    B Tiwary
    Dhanbad , 2022
    2022
  • Investigation of Heat Transfer Enhancement in Air-cooled Novel Wavy Geometry
    R Kumar, B Tiwary, PK Singh
    Proceedings of the 8th International and 47th National Conference on Fluid … , 2020
    2020
  • Parametric Study of Wavy Microchannel Using Nanofluid
    R Kumar, B Tiwary, PK Singh
    Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 931-940 , 2020
    2020
  • Effect of Varying Oblique Angle on Heat Transfer Enhancement in Oblique Channel
    B Tiwary, R Kumar, PK Singh
    Advances in Mechanical Engineering: Select Proceedings of ICRIDME 2018, 845-855 , 2020
    2020
  • Parametric Investigation on Thermal Performance in Novel Oblique Geometry with Nanofluids
    B Tiwary, R Kumar, PK Singh
    25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer … , 2019
    2019
  • Investigation of Thermal Performance in Novel Wavy Geometry with Nanofluids
    R Kumar, B Tiwary, PK Singh
    25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer … , 2019
    2019
  • Effect of varying oblique width on Heat Transfer Enhancement of oblique Channel with Nanofluid
    B Tiwary, R Kumar, PK Singh
    7th International & 45th National Conference on Fluid Mechanics & Fluid … , 2018
    2018
  • Effect of Wavy Microhannel on Heat Transfer Performance with Nanofluid
    R Kumar, B Tiwary, PK Singh
    7th International & 45th National Conference on Fluid Mechanics & Fluid … , 2018
    2018