Background and activities

Postdoctoral researcher

Area of work

  • Direct numerical simulations
  • Point particle methodology, non-spherical particle dynamics
  • Turbulence-particle interactions
  • Vertical transportation in deep ocean mining

Skills and expertise

  • Computational fluid dynamics
  • Dispersed phase modeling
  • Turbulent flows, Multiphase flows
  • Flow assurance

Background

Education:

  • PhD, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway (2013-2016)
  • Master of Technology, Mechanical Engineering, Indian Institute of Technology - Kanpur, India (2008-2010)
  • Bachelor of Engineering, Mechanical Engineering, Osmania University Hyderabad, India (2004-2008)

Work experience:

  • Postdoctoral researcher, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway (2016- ) 
  • CFD Engineer, GE-Oil & Gas, Bangalore, India (2012-2013)
  • Researcher, TRDDC-Tata Consultancy Services Ltd., Pune, India (2010-2012)

 

Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database

Journal publications

Part of book/report

  • Yuan, Wenjun; Zhao, Lihao; Challabotla, Niranjan Reddy; Andersson, Helge Ingolf. (2017) Gravity effects on the wall-normal motion of inertial disk-like particles in vertical turbulent channel flow. MekIT’17 - Ninth national conference on Computational Mechanics.
  • Challabotla, Niranjan Reddy; Nilsen, Christopher; Zhao, Lihao; Andersson, Helge Ingolf. (2015) Reynolds number effects in particle-laden turbulent channel flow. Proceedings of MekIT'15 Eighth National Conference on Computational Mechanics.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2015) On the statistics of fibers in turbulent vertical channel flow. Proceedings of the Eight International Symposium on Turbulence, Heat and Mass Transfer.

Others

  • Challabotla, Niranjan Reddy. (2018) Dynamic pipe flow modelling for Ocean Mining Lift System. Ocean Week 2018 . NTNU; Trondheim. 2018-05-07 - 2018-05-09.
  • Challabotla, Niranjan Reddy; Smith, Ivar Eskerud; Nydal, Ole Jørgen; Sævik, Svein. (2018) Simulation of two-phase flow in airlift pump using 1D two-fluid model. Underwater Mining Conference 2018 ; Bergen. 2018-09-10 - 2018-09-14.
  • Challabotla, Niranjan Reddy. (2017) 1D Dynamic Model for Vertical Transportation in Ocean Mining. SFI MOVE autumn conference 2017 . NTNU Ålesund; Ålesund. 2017-11-22 - 2017-11-22.
  • Challabotla, Niranjan Reddy. (2017) Dynamic pipe flow modeling for ocean mining lift system. SFI MOVE spring conference ; 2017-04-05 - 2017-04-05.
  • Challabotla, Niranjan Reddy. (2017) Model development for ocean mining lift system. OCEAN WEEK 2017 . NTNU, SINTEF; Trondheim. 2017-05-03 - 2017-05-05.
  • Yuan, Wenjun; Zhao, Lihao; Challabotla, Niranjan Reddy; Andersson, Helge Ingolf. (2017) Gravity effects on the wall-normal motion of inertial disk-like particles in vertical turbulent channel flow. 9th National Conference on Computational Mechanics . NTNU; Trondheim. 2017-05-11 - 2017-05-12.
  • Zhao, Lihao; Jie, Yucheng; Challabotla, Niranjan Reddy; Andersson, Helge Ingolf. (2017) Numerical study of suspensions of tiny spheroids in turbulent channel flow. The Chinese Congress of Theoretical and Applied Mechanics 2017 . The Chinese Society of Theoretical and Applied Mechanics; Beijing. 2017-08-13.
  • Andersson, Helge Ingolf; Challabotla, Niranjan Reddy; Zhao, Lihao. (2016) Suspensions of inertial spheroidal particles in turbulent vertical channel flow. 9th International Conference on Multphase Flow ; Firenze. 2016-05-22 - 2016-05-27.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2016) Orientation and rotation dynamics of small tri-axial ellipsoidal particles in wall turbulence. 11th European Fluid Mechanics Conference . EUROMECH - European Mechanics Society; Sevilla. 2016-09-12 - 2016-09-16.
  • Andersson, Helge Ingolf; Zhao, Lihao; Challabotla, Niranjan Reddy; Variano, Evan. (2015) Inertial effects on non-spherical particle rotation in turbulent channel flow. 15th European Turbulence Conference (ETC15) ; 2015-08-25 - 2015-08-28.
  • Andersson, Helge Ingolf; Zhao, Lihao; Challabotla, Niranjan Reddy; Variano, Evan. (2015) Spheroids in wall turbulence: Part 2 effect of inertia. COST Action FP1005 Final Conference . COST; 2015-06-09 - 2015-06-11.
  • Challabotla, Niranjan Reddy; Nilsen, Christopher; Zhao, Lihao; Andersson, Helge Ingolf. (2015) Reynolds number effects in particle-laden turbulent channel flow. MekIT'15: Eighth National Conference on Computational Mechanics ; 2015-05-18 - 2015-05-20.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2015) Dynamics of inertial disk particles in turbulent channel flow. 15th European Turbulence Conference (ETC15) . EUROMECH; Delft. 2015-08-25 - 2015-08-28.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2015) On the statistics of fibers in turbulent vertical channel flow. 8th international symposium on Turbulence, Heat and Mass Transfer ; 2015-09-15 - 2015-09-18.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2015) Orientation and rotation of inertial disk particles in wall turbulence. EUROMECH COLLOQUIUM 566 ; 2015-06-10 - 2015-06-12.
  • Challabotla, Niranjan Reddy; Zhao, Lihao; Andersson, Helge Ingolf. (2015) Small Inertia-Free Spheroidal Particles in a Turbulent Channel Flow. 68th Annual Meeting of the APS Division of Fluid Dynamics . American Physical Society; 2015-11-22 - 2015-11-24.
  • Zhao, Lihao; Challabotla, Niranjan Reddy; Andersson, Helge Ingolf. (2015) Spheroids in wall turbulence: Part 1 Effect of mean shear. COST Action FP1005 Final Conference . COST; 2015-06-09 - 2015-06-11.
  • Andersson, Helge Ingolf; Zhao, Lihao; Nilsen, Christopher; Reddy Challabotla, Niranjan. (2014) Reynolds number effects in particle-laden turbulent channel flow. 10th European Fluid Mechanics Conference . EUROMECH; Lyngby, Copenhagen. 2014-09-14 - 2014-09-18.
  • Reddy Challabotla, Niranjan; Christopher, Nilsen; Andersson, Helge Ingolf. (2014) On Rotational Dynamics of Oblate Spheroids in Simple Linear Shear Flow. Collective Dynamics of Particles – Workshop . CISM; Udine. 2014-05-28 - 2014-05-28.