Dr. Ashwani Assam Assistant Professor of Department of Mechanical Engineering R308 Block 3 Academic Area Indian Institute of Technology Patna, Bihta, Bihar - 801106 E-mail: aashwani@iitp.ac.in Phone: +91-611-523-38829 Google Scholar ResearchGate Orcid ID: 0000-0002-6865-3011

Biography

Ashwani Assam is currently an Assistant Professor in the Department of Mechanical Engineering at the IndianInstitute of Technology (IIT), Patna. Formerly, he was a DST Inspire Faculty in the department. He did his post-doc at IIT Palakkad. He received his Bachelor’s degree in Mechanical in 2012 from Birla Institute of Technology, Mesra, India, and his M-Tech and Ph.D. degrees in Mechanical and Aerospace in 2014 and 2019, respectively. He was recipient of Institute Gold and Silver Medal during his M-Tech at IIT Hyderabad. His research interest includes Computational Fluid Dynamics (CFD), Compressible fluid flow, Micro and Nano Flows, Rarefied Gas Dynamics,Turbulence, Machine Learning, and Direct Simulation Monte Carlo Simulation. He has been involved in developing in-house CFD codes. He has also been working with openSource CFD codes such as OpenFOAM and SU2.

•     INSPIRE Faculty Fellowship from Department of Science and Technology (DST), Govt. of India (2020-2025)
•     Institute gold and silver medal for securing highest CGPA in M-Tech (in all Departments and in Mechanical Engineering)
•     Academic excellence award for the Year 2012-13 in the Mechanical M-Tech category
•     Laureate certificate for academic performance in the year 2008
•     Member of Open FOAM user group at IIT Hyderabad

Membership of Professional Bodies

•     Life member to the Indian Society for Heat and Mass Transfer (ISHMT)

Post-Doctoral Work

•   DST Inspire Faculty, Department of Mechanical Engineering, IIT Patna. (Time duration: July 2020 to February 2022)
•   Institute Post-Doctoral Fellow at IIT Palakkad, Kerala.  (Mentor: Dr. Ganesh Natarajan. Time duration: July 2019 to July 2020)

Educational Qualifications

• Faculty Advisor: B-Tech 2020 (Mechanical Engineering, IITP)
• Faculty Advisor: M-Tech (Mechanical) 2021 (Mechanical Engineering, IITP)
• Programme Director: Executive M-Tech Program in Mechatronics, IITP
• Department Secretary (October 2022 – March 2023)
• Design of New Course/Program:
• Executive M-Tech Program (along with Dr Atul Thakur, IITP)
• B-Tech in Aerospace Engineering (along with Dr M. Pathak, IITP) (In progress)
• M-Tech in Mechanical Engineering with Specialization in Thermo-Fluid (along with Dr Kaleem Khan, IITP)
• Designed a new elective course, “Gas Dynamics and Propulsion” (along with Dr Deepu)
• Designed a new undergraduate course, “Data Analytics and Machine Learning Tools for Engineers” (along with Dr Rishi Raj and Dr Atul Thakur)
• Part of the Organizing Team for the upcoming IHMTC-2023 conference at IIT Patna
• Design of Google Form and API script based prospective Faculty assessment form for Faculty shortlisting round
• Professor In Charge - GIAN & SPARC (Sep. 2022 - till date)
• Nodal Officer - Visvesvaraya Ph.D Scheme (Sep. 2022 - till date)
• Professor In Charge - Training & Placement Cell (March 2023 - till date)
  

Journal Articles

1. Shah, M. S., Gupta, D., Saha, P., Assam, A., & Sarkar, C. (2023) A novel flushing technique to improve micro-EDM dressing process stability: assessment through analyzing debris evacuation, The International Journal of Advanced Manufacturing Technology, 1-20. (Link)
   
2. Sharma V., & Assam, A. (2023) Aero-thermal Analysis of Rarefied flow over Inverse Cone Shaped Objects using Direct simulation Monte Carlo Analysis, Journal of Heat and Mass Transfer, ASME (Accepted) (Both Author Contributed Equally)
   
3. Kumar, S., & Assam, A. (2023). Effect of rarefaction on thermal and chemical non-equilibrium for Hypersonic flow with different enthalpy and catalytic wall conditions. ASME. J. Thermal Sci. Eng. Appl. July 2023; 15(7): 071012. (Link)
4. Deka, M., Assam, A., & Natarajan, G. (2023). A least squares perspective of Green–Gauss gradient schemes. Physics of Fluids, 35(3), 031710. (Link)
5. Sharma, V., & Assam, A. (2022). Evaluation of novel wall function approach for supersonic flow problems involving separations induced by geometry and shocks. Computers & Mathematics with Applications, 123, 75-88. (Link)
   
6. Assam, A., & Natarajan, G. (2021). A novel least squares finite volume scheme for discontinuous diffusion on unstructured meshes. Computers & Mathematics with Applications, 96, 120-130. (Link)
7. Kalkote, N., Assam, A. & Eswaran, V. (2021), Toward the implementation of a multi-component framework in a density-based flow solver for handling chemically reacting flows, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 31 No. 10, pp. 3169-3195. (Link)
   
8. Kalkote, N., Kumar, A., Assam, A. & Eswaran, V. (2020), Performance of the k-kL model for aerodynamics applications, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 22 No. 8, pp. 3985-4011.( Link)
   
9. Assam, A., Nived, M. R., Kalkote, N. N., & Eswaran, V. (2020). A numerical study of shock and heating with rarefaction for hypersonic flow over a cylinder. Journal of Heat Transfer, 142(1), 014501. (Link)
10. Joshi, A., Assam, A., Nived, M. R., & Eswaran, V. (2019). A generalised wall function including compressibility and pressure-gradient terms for the Spalart–Allmaras turbulence model. Journal of Turbulence, 20(10), 626-660. (Link)
11. Kalkote, N., Assam, A., & Eswaran, V. (2019). Acceleration of later convergence in a density-based solver using adaptive time stepping. AIAA Journal, 57(1), 352-364.(Link)
12. Kalkote, N., Assam, A. and Eswaran, V. (2019), Towards developing an adaptive time stepping for compressible unsteady flows, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 2, pp. 487-503.(Link)
    
13. Assam, A., Kalkote, N., Dongari, N., & Eswaran, V. (2019). Investigation of non-equilibrium boundary conditions considering sliding friction for micro/nano flows. International Journal of Numerical Methods for Heat & Fluid Flow, 29(8), 2501-2523. (Link)
    
14. Assam, A., Kalkote, N., Dongari, N., & Eswaran, V. (2018). Comprehensive evaluation of a new type of Smoluchowski temperature jump condition. AIAA Journal, 56(11), 4621-4625. (Link)
15. Assam, A., Narayan Kalkote, N., Sharma, V., & Eswaran, V. (2018). An automatic wall treatment for Spalart–Allmaras turbulence model. Journal of Fluids Engineering, 140(6). (Link)

 Conference Articles

1. Amit, K, Assam, A., Raj, A. “Dynamics of droplet motion in stenosed deformable microchannel” 11th International Conference on Multiphase Flow (ICMF) , Paper No. 423, Kobe, Japan, April 2 – 7 , 2023.
   
2. Alam Md. Q., Upadhyay A., Assam A., Raj R. “Numerical Investigation of Passive Acoustic Emissions during Bubble Departure from an Underwater Orifice”, CHEMCON 2022, HBTU Kanpur, India, 27th Dec – 30th Dec 2022.
   
3. Amit, K, Assam, A., Raj, A. “Hydrodynamics resistance of stenosed deformable microchannel for droplet migration ” 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), Paper No. 2589, IIT Roorkee, Uttarakhand, India, December 14-16, 2022.
   
4. Amit, K, Assam, A., Raj, A. “Pressure flow characteristics of a deformable microchannel with a superhydrophobic wall” 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), Paper No. 2897, IIT Roorkee, Uttarakhand, India, December 14-16, 2022
   
5. Amit, K, Assam, A., Raj, A. “Role of deformability and super-hydrophobicity in the microchannel.” 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2022, Chemical and Biological Microsystems Society, 23-27 October, Hangzhou, China.
   
6. Ananthajit A, Assam, A., Training of Neural Network on Selectively Generated Data for flow over airfoils at higher angle of attack, 48th National Conference on Fluid Mechanics and Fluid Power (FMFP), Paper No. 202, BITS Pilani India, December 27-29, 2021.
7. Kalkote N., Nived M.R., Assam A., “An Assessment of NL-LUSGS, Non-Linear Equation Solution Algorithm for Time-Accurate Marching in Compressible Flows on Hybrid-Unstructured Grid.” 26th National and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2021), Paper No. 608, IIT Madras, December 17-20, 2021.
8. Boban, J., Ahmed, A., Assam, A. (2021). Effect of recirculation zone on debris evacuation during EDM deep hole drilling. Procedia CIRP, 102, 393-398.
   
9. Nived M.R., Kalkote N., Assam A., and Eswaran V., Applications of k − kl Turbulent Flow Model to The Engineering Flows, 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019), Paper No.–664, IIT Roorkee, India, December 28-31, 2019.
   
10. Kalkote N., Nived M.R., Assam A., and Eswaran V., Stable implementation of k − kl turbulent flow model in unstructured grid CFD solver, 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019), Paper No.–525, IIT Roorkee, India, December 28-31, 2019.
11. Assam A., Kalkote N., Nived M. R., Eswaran V., Performance of Various Convective Scheme for Hypersonic Flows. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP), Paper no. 260, IIT Bombay, Mumbai, India, December 10-12, 2018.
12. Kalkote N., Assam A., Eswaran V., Application of Adaptive Time-Stepping for Steady/Unsteady Flows, 10th International Conference on Computational Fluid Dynamics (ICCFD10), Paper No. 148, Barcelona, Spain, July 9-13, 2018.
13. Sharma V., Assam A., Eswaran V., Investigation Of Turbulent Mixing Layer With Compressibility Corrections For RANS Models, 10th International Conference on Computational Fluid Dynamics (ICCFD10), Paper No. 168, Barcelona, Spain, July 9-13, 2018.
14. Kalkote N., Assam A., Nived M. R., Eswaran V., Investigation of All-Speed SLAU Scheme in Incompressible Limit. 5th International Conference on Computational Methods for Thermal Problems (THERMACOMP - 2018), Paper no. 76, Indian Institute of Science, Bangalore, India, July 9-11, 2018.
15. Assam A., Kalkote N., Dongari N., Eswaran V., Use of the Pressure Jump Boundary Condition in the High Speed Rarefied Gas Flows, 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) (ECCM 6) and the 7th European Conference on Computational Fluid Dynamics (ECFD 7), ECCOMAS, Paper No. 21, Glasgow, UK, June 11-15, 2018.
16. Assam A., Sharma V., and Eswaran V. Automatic Wall Treatment for Spalart-Allmaras Turbulence Model, 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Paper No. 479, BITS Pilani, Hyderabad Campus, India, December 27-30, 2017.
17. Athkuri S. S. C., Sharma V., Assam A., Eswaran V., Performance of Convective Schemes in Density-Based Solver, 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Paper No. 174, BITS Pilani, Hyderabad Campus, India, December 27-30, 2017.
18. Sharma V., Assam A., Eswaran V., Numerical Simulation of Turbulent High-Speed Plane Jets - A Validation with Experimental Results, 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Paper No. 62, BITS Pilani, Hyderabad Campus, India, December 27-30, 2017.
19. Assam A., Kalkote N., Dongari N., Eswaran V., Computation of Rarefied Gas Flows in Nano/micro Devices using an Indigenous developed Computational Fluid Dynamics Solver, International Conference on Nanotechnology: Ideas, Innovations & Initiatives (ICN:3I). Department of Mechanical & Industrial Engineering & Centre of Nanotechnology, Paper No. 498, Indian Institute of Technology Roorkee, India, December 6-8, 2017.
20. Sharma V., Assam A., Eswaran V., Development of All Speed Three-Dimensional Computational Fluid Dynamics Solver for Unstructured Grids, 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP), Paper No. 21, Allahabad, India, Dec. 15-17 2016.
21. Gijare H., Assam A., Dongari N., Aero-Thermodynamics Optimization of Reentry Capsule in the Slip Flow Regime, 23rd National and 1st International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2015), Paper No. 487, LPSC, ISRO, Trivandrum, Kerala, India, December 17-20, 2015.

1. Ananthajit, A., & Assam, A. (2023). Training of Neural Network on Selectively Generated Data for Flow over Airfoils at Higher Angle of Attack. In Fluid Mechanics and Fluid Power (Vol. 3) Select Proceedings of FMFP 2021 (pp. 1-6). Singapore: Springer Nature Singapore.

Present Students

Doctoral

• Vivek Kumar (Co-Guide, Guide: Dr. Deepu P, ME)
• Kumar Amit (Co-Guide, Guide: Dr. Abhishek Raj, ME)
• MD Quamar Alam (Co-Guide, Guide: Dr. Rishi Raj, ME)

 Masters

• Rajiv Kumar
• Aditya Kumar
  
• Sanjay Kumar
• Anubhav Dwivedi
  

 Bachelors

• Kartikay Gupta
• Shresth Verma
• Danish Raza
• Md. Owais Siddiquei
  

Past Students

 Masters

• Ashok Das, 2022 (Co-Guide, Guide: Dr. Abhishek Raj, ME)
  
• Thesis title: CFD Analysis of Wall Condensation in Convective Flow in Presence of Non-Condensable Gases
• Monisha Daimari, 2022 (Co-Guide, Guide: Dr. Rishi Raj, ME)
• Thesis title: Bubble Acoustics Using Computational Fluid Dynamics Simulations
• Shubham Kumar, 2022 (Best Masters' Project-MTP)
  
• Thesis title: Numerical Study of Non-Equilibrium Multi-Species Hypersonic Flows

Bachelors

• Anand Tripathi, 2023
• Thesis title: Investigating the Effect of Porous Media on Fluid Flow and Heat​ Transfer in Microchannels and Macro-Cavities​
• Manoj Kumar Madugula and Rahul Preetham Kandukuri, 2023
• Thesis title: Study on Reducing Wind speeds using wind barriers
• Neeraj Kumar Gond and Nikhil Anand, 2022
• Thesis title: Study of Rarefied Gas Flows in Microchannels

   Major Codes Developed

• 3D Unstructured density based CFD Solver for external aerothermodynamics and rarefied flows
• 3D Structured finite volume compressible flow module in ANUPRAVAHA: General purpose in-house CFD Solver