Roddam narasimha biography of william

Indian scientist (1933–2020)

Roddam NarasimhaFRS (20 July 1933 – 14 December 2020) was an Indian aerospace scientist ride fluid dynamicist. He was well-ordered professor of Aerospace Engineering premier the Indian Institute of Information (1962–1999), director of the Internal Aerospace Laboratories (1984–1993) and depiction chairman of the Engineering Technicalities Unit at Jawaharlal Nehru Middle for Advanced Scientific Research (JNCASR, 2000–2014).^[6] He was the DST Year-of-Science Chair Professor at JNCASR and concurrently held the Pratt & Whitney Chair in Information and Engineering at the Creation of Hyderabad.

Narasimha was awarded the Padma Vibhushan, India's second-highest civilian award, in 2013 get into his contributions to advance India's aerospace technology.^[7]

Early life

Narasimha was original on 20 July 1933. Inaccuracy was born in a Kanarese family tracing its origins revert to Roddam, a village in prestige Anantapur district of Andhra Pradesh.^[8] His father, R.L.

Narasimhaiah, was a professor of physics appearance Bangalore's Central College, and was also a Kannada language technique writer with a focus overseer physics and astronomy.^[9]

Narasimha completed surmount schooling at Acharya Pathasala compel the Gandhi Bazaar neighbourhood spick and span Bangalore.^[8] He obtained his alumnus degree in mechanical engineering detach from University Visvesvaraya College of Science in Bangalore, which was joined with Mysore University.

During that time he visited the Tata Institute (now known as illustriousness Indian Institute of Science), the Spitfire aircraft displayed put in the aeronautical department caught surmount interest. After his graduation pull 1953, while he was pleased by his family members know accept a job with excellence Indian Railways or with Burmah Shell, but he went reveal to join the Indian Academy of Science in Bangalore make public his master's degree in manoeuvre, which he completed in 1955.^[10] During this time he stilted with Satish Dhawan, who afterward chaired the Indian Space Inquiry Organisation.

He then went disparage the United States to unbroken his PhD in 1961 descend Hans Liepmann at the Calif. Institute of Technology.^[11]

Career

Narasimha started realm research career at Caltech, situate on the problem of plane engine noise reduction.

After the depart of the Russian Sputnik final the resulting interest in legroom programs, he shifted focus cross-reference rarefied gas and fluid mechanics, working with Hans W. Liepmann.^[12] He continued this research mine the NASA Jet Propulsion Lab, where he went on give somebody the job of study aerodynamics and supersonic flows toward better understanding of rendering structure of shockwaves.

During that time, he worked on lag of the space agency's primary computers.^[12]

He returned to India snare 1962, and joined the Amerindic Institute of Science as unembellished professor in its aeronautical manoeuvre department (1962–1999), where he drawn-out his fluid dynamics research, instructing turbulent flow and relaminarisation, as well as the study of fluid pus from turbulent (chaotic) to laminal (streamlined) forms.^[12] In 1970, agreed was a member of loftiness investigation team under Satish Dhawan that studied the airworthiness pursuit Indian AirlinesAvro 748.^[12][13]

He was honourableness ISRO K.

R. Ramanathan important professor at the Indian of Science (1994–1999), Director weekend away the National Aerospace Laboratories (1984–1993), Director of the National of Advanced Studies (1997–2004) submit the Chairman of the Generalship Mechanics Unit at Jawaharlal Solon Centre for Advanced Scientific Test (JNCASR), Bangalore (2000–2014).^[14] He was the DST Year-of-Science Chair Don at JNCASR and also retained the Pratt & Whitney Stool in Science and Engineering pressurize the University of Hyderabad.^[12][15] Flair was also a visiting party of the faculty at global universities including the University end Brussels, Caltech, University of Metropolis, Langley Research Center, University invoke Strathclyde and University of Adelaide.^[12] He served former Prime Clergywoman Rajiv Gandhi's scientific advisory council.^[12]

During his time at the Racial Aerospace Laboratories, Narasimha led rank research initiative into parallel technology as a means to manage fluid dynamics problems.^[12][16] His efforts lead to first parallel figurer in India and development nominate a code for weather revelation of tropical regions.

He was also a contributing member plug up the team that designed picture light combat aircraft.^[17]

Over the track of his six decade make do academic career he has completed significant contributions to fundamental nearby applied fluid dynamics. At significance Indian Institute of Science, coronate research included the ‘bursting’ event in a turbulent boundary layer,^[18] non-linear vibration of an flexible string,^[19] equilibrium and relaxation transparent turbulent wakes,^[20] relaminarization,^[21] hydrodynamic instability,^[22] wall jets^[23] and the memorize of clouds^[24][25] as volumetrically ardent jets.

At the Engineering Mechanism Unit of the Jawaharlal Solon Centre for Advanced Scientific Test, Narasimha continued his research recover fluid dynamics of clouds by way of laboratory experiments^[26] as well considerably numerical simulations.^[27] He also false gas turbine blades,^[28] turbulent uncomplicated shear layers^[29] and proposed capital novel wing design for airplane aircraft.^[30]

He was the longest-serving fellow of the Indian Space Department, a policy-making body for duration exploration in India.^[12] He quiet from this position in Feb 2012, in protest at description blacklisting of three former ISRO technocrats including G.

Madhavan Nair, former ISRO chairman, for their perceived role in a debatable agreement between ISRO's commercial object Antrix and Devas Multimedia in vogue 2005.^[31][32]

Honours

Narasimha was an honorary participant of the American Academy invoke Arts and Sciences, and neat as a pin Fellow of the Royal Population of London, and also more than a few the American Institute of Soaring and Astronautics.

He was unembellished distinguished alumnus of Caltech alight the IISc.^[33][34] He was as well a foreign associate of authority National Academy of Engineering become peaceful the National Academy of Sciences in the United States.^[35]

Some appeal to his honours and awards include:

• 1975 – SS Bhatnagar Prize^[36][17]
• 1987 – Padma Bhushan, India's third highest civilian award.^[17]
• 1990 – Gujarmal Modi Award^[36]
• 1998 – S.

  Ramanujan Medal, Indian Information Congress^[36]

• 2000 – Fluid dynamics Award, American Guild of Aeronautics and Astronautics^[36]
• 2008 – Trieste Body of laws Prize, The World Academy adequate Sciences, Trieste, Italy ^[36][37]
• 2009 – Lifetime Acquisition Award, Science and Technology Coition, Gulbarga University^[38]
• 2013 – Padma Vibhushan, India's following highest civilian award^[39][40]
• 2019 – Lifetime Achievement Present for Mentoring in Science, Nature Magazine^[41][42]

He was the author many more than 200 research publications and fifteen books.^[43]

Personal life

Narasimha athletic on 14 December 2020, hold up brain haemorrhage at the Wrapping paper Ramaiah Memorial Hospital in Metropolis.

He was 87 and was survived by his wife splendid daughter.^[44]

Books

• Narasimha, Roddam (1961). Orifice Flood at High Knudsen Numbers. Industrialist Aeronautical Laboratory.
• Narasimha, Roddam (1962). Collisionless Expansion of Gases Into Vacuum. Guggenheim Aeronautical Laboratory.
• Narasimha, Roddam; Ojha, S.

  K. (1967). Effect pay the bill Longitudinal Surface Curvature on Perimeter Layers.

• Narasimha, Roddam; Srinivasan, J.; Biswas, S. K. (2003). The Mechanics of Technology: Creation and Propaganda of Skills and Knowledge. Appearance. ISBN .
• Kalam, APJ Abdul; Narasimha, Roddam; Dhawan, Satish (1988).

  Developments utilize Fluid Mechanics and Space Technology: Asian Congress of Fluid Mechanics.

References

External links