Indian Institute of Tropical Meteorology

Scientist Profile

Dr. Shivsai Ajit Dixit

Designation

: Scientist F

Phone

: +91-(0)20-25904242

Fax

: +91-(0)20-25865142

Email ID

: sadixit[at]tropmet[dot]res[dot]in

Area of Expertise

Experimental and Numerical Fluid Dynamics

Academic Records

Degree	University	Year	Stream
Ph.D.	Indian Institute of Science (IISc), Bangalore	2010	Aerospace Engg.
ME	Indian Institute of Science (IISc), Bangalore	2003	Aerospace Engg.
BE	University of Pune	2001	Mechanical Engg.

Research

Experimental and Numerical Fluid Dynamics

Turbulence

Boundary layers

Cloud Flows

Atmospheric Boundary Layers

Awards & Honors

Award Name	Awarded By	Awarded For	Year
Prof. A. K. Rao Gold Medal	Indian Institute of Science (IISc), Bangalore	Best Ph.D. thesis	2010
Mrs. Sabita Chaudhuri Memorial Gold Medal	Indian Institute of Science (IISc), Bangalore	Best M.E. Student	2003
Forbes Marshall Best Project Award	Forbes Marshall	Best BE project	2001

Scientific Careers

Year	Designation	Institute
2023-Present	Scientist F	Indian Institute of Tropical Meteorology, Pune
2017-2022	Scientist E	Indian Institute of Tropical Meteorology, Pune
2013-2016	Scientist D	Indian Institute of Tropical Meteorlogy,Pune
2009-2013	Assistant Professor	MKSSS’s Cummins College of Engg. for Women , Pune

Research Highlight

Generalized Scaling and Model for Friction in Wall Turbulence

When a fluid flows across a solid surface, friction arises between the fluid and the surface. This friction dictates the energy needed to pump oil through a pipe or the fuel needed to fly an aircraft through the sky, for example. Previous models of such friction were accurate for only a limited range of turbulent flows. Now Shivsai Dixit and his colleagues at the Indian Institute of Tropical Meteorology have developed a generalized model that is accurate for many more such flows...

(for more details pl see https://physics.aps.org/articles/v17/s2)

View Article | Author Link

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Honors / Awards:

Score of 99.54 percentile and AIR (All India Rank) 35 in GATE–2001 examination in Mechanical Engineering
University Rank 3 (University of Pune) for BE (final year) examination
University Rank 3 (University of Pune) for TE (third year) examination
University Rank 4 (University of Pune) for SE (second year) examination
Merit Certificate of the National Merit Scholarship Scheme–1997
Rank 8 in the General Merit List and Rank 6 in the Vocational Merit List of HSC (12th standard) examination–1997
Rank 21 in the General Merit List of SSC (10th standard) examination–1995

Academic Activities at IITM:

Teaching:

Numerical Methods to MSc (Atm. Sci.) students of University of Pune

Basics of Fluid Dynamics and Thermodynamics for RFs at IITM.

Guidance for projects:

Design of the Water-Tunnel Facility at FDL, IITM, Pune – BE (Mechanical) final year project (group of 4 students) 2014 - 2015
Development of an Incompressible Flow DNS Code - Project for CAT (Batch – III) student 2014
On the applicability of Monin-Obukhov theory in weakly-forced turbulent convection – MSc (Atm. Sci., DASS, SPPU) project by Mr. Manikandan Rajagopal, May 2016

Developmental Activities at IITM:

Development of the infrastructure, from scratch, for the upcoming Fluid Dynamics Laboratory (FDL) at IITM, Pune
Design and Development of experimental setups/facilities at FDL
Procurement and setting-up of the state-of-the-art measurement systems at FDL
Setting-up of the numerical experimentation capability at FDL

Journal Publications:

16. Prasad P., Aravindhavel A., Gayatri K., Mehta S.K., Jaya Rao Y., Purushotham P., Kakkanattu S.P., Solanki R., Gupta Abhishek, Bankar S., Dixit S.A., Prabhakaran Thara, Atmospheric boundary layer height over a rain-shadow region: An intercomparison of multi-observations and model simulations, Atmospheric Research, 309: 107566, October 2024, DOI:10.1016/j.atmosres.2024.107566, 1-17

15. Choudhary H., Gupta A., Bhatt S., Prabhakaran Thara, Singh A.K., Karipot A., Dixit S.A., Experimental investigation of the structure of plane turbulent wall jets. Part 1. Spectral analysis, Journal of Fluid Mechanics, 988: A42, July 2024, DOI:10.1017/jfm.2024.464, 1-55

14. Konwar M., Werden B., Fortner E.C., Bera S., Varghese M., Chowdhuri S., Hiber, K., Croteau P., Jayne J., Canagaratna M., Malap N., Jayakumar S., Dixit S.A., Murugave P., Axisa D., Baumgardner D., DeCarlo P.F., Worsnop D.R., Prabhakaran T., Identifying the seeding signature in cloud particles from hydrometeor residuals, Atmospheric Measurement Techniques, 17, April 2024, DOI:10.5194/amt-17-2387-2024, 2387-2400

13. Kulkarni G., Sandeep J., Murugavel P., Chowdhuri S., Konwar M., Dinesh G., Todekar K., Bankar S., Dixit S.A., Malap N., Prabhakaran Thara, Evaluation of high-resolution WRF model forecasts and their use for cloud seeding decisions, Journal of Atmospheric and Solar Terrestrial Physics, 228: 105825, February 2022, DOI:10.1016/j.jastp.2022.105825, 1-14

12. Dixit S.A., Gupta A., Choudhary H., Singh A.K., Prabhakaran Thara, A new universal model for friction factor in smooth pipes, Physics of Fluids, 33: 035134, March 2021, DOI:10.1063/5.0041342, 1-13

11. Varghese M., Leena P.P., Murugavel P., Bankar S., Todekar K., Chowdhuri S., Safai P.D., Malap N., Konwar M., Dixit S., Jaya Rao Y., Prabhakaran Thara, New particle formation observed from a rain shadow region of the Western Ghats, India, Toxicological & Environmental Chemistry, 102, July 2020, DOI: 10.1080/02772248.2020.1789134, 305-333

10. Jayachandran V.N., Varghese M., Murugavel P., Todekar K.S., Bankar S.P., Malap N., Gurnule D., Safai P.D., Jaya Rao, Konwar M., Dixit S., Prabhakaran Thara, Cloud condensation nuclei characteristics during the Indian summer monsoon over a rain-shadow region, Atmospheric Chemistry and Physics, 20, June 2020, DOI:10.5194/acp-20-7307-2020, 7307–7334

9. Gupta A., Choudhary H, Singh A.K., Prabhakaran Thara, Dixit S.A, Scaling mean velocity in two-dimensional turbulent wall jets, Journal of Fluid Mechanics, 891:A11, May 2020, DOI:10.1017/jfm.2020.132, 1-33

8. Dixit S.A., Gupta A., Choudhary H., Singh A.K., Prabhakaran Thara, Asymptotic scaling of drag in flat-plate turbulent boundary layers, Physics of Fluids, 32:041702, April 2020, DOI:10.1063/5.0004464, 1-8

7. Chattopadhyay R., Dixit S.A., Goswami B.N., Modal Rendition of ENSO Diversity, Scientific Reports, 9:14014, September 2019, DOI:10.1038/s41598-019-50409-4, 1-11

6. Dixit S.A., Ramesh O.N., Streamwise self-similarity and log scaling in turbulent boundary layers, Journal of Fluid Mechanics, 851, September 2018, DOI:10.1017/jfm.2018.506, R1-R12

5. Ghude S.D., Bhat G.S., Prabha T., Jenamani R.K., Chate D.M., Safai P.D., Karipot A.K., Konwar M., Pithani P., Sinha V., Rao P.S.P., Dixit S.A., Tiwari S., Todekar K., Varpe S., Srivastava A.K., Bisht D.S., Murugavel P., Ali K., Mina U., Dharua M., Jaya Rao Y., Padmakumari B., Hazra A., Nigam N., Shende U., Lal D.M., et.al., Acharja P., Kulkarni R., Subharthi C., Balaji B., Varghese M., Bera S., Ra, Winter fog experiment over the Indo-Gangetic plains of India, Current Science, 112, February 2017, DOI:10.18520/cs/v112/i04/767-784,767-784

4. Dixit, S. A., & Ramesh, O. N. (2013). On the $k_{1}^{−1}$ scaling in sink-flow turbulent boundary layers. Journal of Fluid Mechanics, 737, 329-348.

3. Dixit, S. A., & Ramesh, O. N. (2010). Large-scale structures in turbulent and reverse-transitional sink flow boundary layers. Journal of Fluid Mechanics, 649, 233-273.

2. Dixit, S. A., & Ramesh, O. N. (2009). Determination of skin friction in strong pressure-gradient equilibrium and near-equilibrium turbulent boundary layers. Experiments in fluids, 47(6), 1045-1058.

1. Dixit, S. A., & Ramesh, O. N. (2008). Pressure-gradient-dependent logarithmic laws in sink flow turbulent boundary layers. Journal of Fluid Mechanics, 615, 445-475.

Conference Publications:

1. Dixit, S. A., & Ramesh, O. N. (2009). Behaviour of the Time-Mean Entrainment in Equilibrium Turbulent Boundary Layers. In: Proceedings of the ICEAE 2009, Indian Institute of Science, Bangalore, INDIA., May 18–22, 2009

No Record found.

आईआईटीएम
IITM

भारतीय उष्णदेशीय मौसम विज्ञान संस्थान
Indian Institute of Tropical Meteorology

Scientist Profile

Dr. Shivsai Ajit Dixit

Designation

: Scientist F

Phone

: +91-(0)20-25904242

Fax

: +91-(0)20-25865142

Email ID

: sadixit[at]tropmet[dot]res[dot]in

Area of Expertise

Academic Records

Research

Awards & Honors

Scientific Careers

Research Highlight

Scientist Profile

Dr. Shivsai Ajit Dixit

Designation : Scientist F

Phone : +91-(0)20-25904242

Fax : +91-(0)20-25865142

Email ID : sadixit[at]tropmet[dot]res[dot]in

Area of Expertise

Academic Records

Research

Awards & Honors

Scientific Careers

Research Highlight

Designation

: Scientist F

Phone

: +91-(0)20-25904242

Fax

: +91-(0)20-25865142

Email ID

: sadixit[at]tropmet[dot]res[dot]in