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Dr.-Ing. Ravi Govindram Kewalramani
Professorship for Technical Thermodynamics
Institute of Thermal Engineering
Lampadius-Bau
Room 217
Gustav-Zeuner-Straße 7
09599 Freiberg

+49 3731 39 2169
Ravi [dot] Kewalramani [at] ttd [dot] tu-freiberg [dot] de

Professional career

Time periodActivity
Since 11/2016TU Bergakademie Freiberg, Professorship for Technical Thermodynamics, research assistant
10/2011 to 09/2015Studies Computational Mechanical Engineering at the Bergische Universität Wuppertal, degree Master of Science (M.Sc.)
05/2015 to 09/2015Bergische Universität Wuppertal, Lehrstuhl für Strömungsmechanik, Praktikum
09/2014 to 03/2015Master's thesis on "Simulation of DNOX sprays with the Volume-Of-Fluid (VOF) method", Robert Bosch GmbH, Stuttgart
09/2006 to 06/2010Studies Mechanical Engineering at the M.V.S.R. Engineering-College, Osmania University, Hyderabad, India, degree Bachelor of Engineering (B.Eng.)

Information

  • Melting/solidification processes
  • Multiphase flows and spray simulations with the Volume-Of-Fluid (VOF) method
  • Numerical simulations with OpenFOAM®

Publications

Journals

R. G. Kewalramani, I. Riehl, J. Hantusch, T. Fieback: 
Numerical investigation of the cooling stage during aluminothermic welding of rails: Rapid welding process without preheating
Thermal Science and Engineering Progress, Vol. 37 (2023) DOI: 10.1016/j.tsep.2022.101610

R. G. Kewalramani, S. Pose, I. Riehl, T. Fieback: 
Solid-Liquid Phase Change in the Presence of Gas Phase: Numerical Modelling and Validation
Journal of Fluid Flow, Heat and Mass Transfer (JFFHMT), Vol. 7, pp. 1-11 (2020) DOI: 10.11159/jffhmt.2020.001

Chapter

R. G. Kewalramani, I. Riehl, J. Hantusch, T. Fieback: 
A CFD Model to Simulate Thermal Mould-Filling and Solid-Liquid Phase Change During Aluminothermic Welding of Rails
In: A. C. Benim et al. (Eds) Advances in Computational Heat and Mass Transfer, ICCHMT 2023, Lecture Notes in Mechanical Engineering, Springer, Vol. 2, pp. 662-671 (2024) DOI: 10.1007/978-3-031-66609-4_61

Peer-reviewed conferences

R. G. Kewalramani, I. Riehl, J. Hantusch, J. Keichel, M. Niederkrueger, T. Fieback: 
Numerical Modelling and Simulation of the Aluminothermic Welding of Rails: Heat Transfer and Solid-Liquid Phase Change
In: Proceedings of the 7th World Congress on Mechanical, Chemical and Material Engineering (MCM'21), 2. - 4. August 2021, Prague, Czech Republic [Virtual Conference] (Abstract/Poster)

R. G. Kewalramani, S. Pose, I. Riehl, T. Fieback: 
Investigation of the Solid-Liquid Phase Change in the Presence of Gas Phase: Numerical Modelling and Validation
In: Proceedings of the 5th World Congress on Mechanical, Chemical and Material Engineering (MCM '19), 15. - 17. August 2019, Lisbon, Portugal (Vortrag/Article)

Conferences

R. G. Kewalramani, I. Riehl, J. Hantusch, T. Fieback: 
A CFD Model to Simulate Mould Filling and Solid-Liquid Phase Change during Aluminothermic Welding of Rails 
14th International Conference on Computational Heat and Mass Transfer, 04 - 08 September 2023, Düsseldorf, Germany (presentation)

R. G. Kewalramani, I. Riehl, J. Hantusch, T. Fieback: 
Aluminothermic Welding Process: 3D CFD Simulation of Solid-Liquid Phase Change and Experimental Validation using Photogrammetry
18th Multiphase Flow Conference & Short Course, 08 - 12 November 2021, Dresden, Germany [Virtual Conference] (Poster)

R. G. Kewalramani, I. Riehl, J. Hantusch, T. Fieback: 
Multiphase CFD Simulation of Heat Transfer and Solidification During Thermite Welding Process
14th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries, 12 - 14 October 2020, Trondheim, Norway [Virtual conference] (presentation)

R. G. Kewalramani, I. Riehl, T. Fieback: 
Modelling and Simulation of the Solidification Process during Thermit®-Welding of Rails
Thermodynamics Colloquium 2018, 26 - 28 September 2018, Kassel, Germany (Poster)

R. G. Kewalramani, I. Riehl, T. Fieback: 
CFD Simulation of the Thermite Welding Process - Cooling and Solidification of the Melt
Annual Meeting of the ProcessNet Divisions Multiphase Flows, Heat and Mass Transfer, CFD, HTT, AuW, KRI and PMT, 6 - 9 March 2018, Bremen, Germany (presentation)

R. G. Kewalramani, I. Riehl, T. Fieback: 
Numerical investigation of heat transfer and solidification of molten thermite® welding process using OpenFOAM®
Thermodynamics Colloquium 2017, 27 - 29 September 2017, Dresden, Germany (Poster)