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Home Science & Technology

Roddam Narasimha: A keen scientific mind and scholar

newsz by newsz
December 15, 2020
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Roddam Narasimha: A keen scientific mind and scholar
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The village of Roddam in Anantapur district of Andhra Pradesh is a world-renowned identify at this time because it nurtured the ancestors of a scientist. Roddam Narasimha, popularly often called Roddam within the aerodynamics and fluid-dynamics circles of the world, was a darling of the aerospace capital of India, Bengaluru. Very a lot Bangalorean to the core, Roddam was a product of the century previous iconic establishments of the town College Visvesvaraya School of Engineering (UVCE) and Indian Institute of Science (IISc). He constructed his profession on the metropolis’s IISc, Nationwide Aerospace Laboratories (NAL), Nationwide Institute of Superior Research (NIAS) and Jawaharlal Nehru Centre for Superior Scientific Analysis (JNCASR).

Roddam had a wealthy science background. His father Prof R.L. Narasimhaiah studied with famend physicist Meghanad Saha at Allahabad, and later taught Physics on the Central School, Bengaluru. He was a pioneer science author in Kannada on Physics and Astronomy in Nineteen Fifties. Roddam had a liking for aeronautics throughout his graduate days and had an event to go to the IISc (then Tata Institute) as soon as. The Spit Hearth plane mannequin in its aeronautical division impressed him to the world of airplanes. After his commencement in mechanical engineering, the household buddy who was on the Tata Institute discouraged Roddam from becoming a member of there. As an alternative, he was recommended to take up the Indian Railway Service or the Burmah Shell job, the present-day equal of a plum IT profession. The dejected Roddam consulted his father who gave him a ‘go forward’ to enroll on the IISc.

It was pre-electronic age on the IISc when Roddam entered its premises. However, the extremely influential Satish Dhawan had constructed a number of indigenous tools in its laboratory on par with world famend establishments. This California Institute of Know-how (Caltech) PhD holder had labored seamlessly with the hardly literate mechanics holding getting old machine instruments. Roddam was assigned to take measurements with lenses and galvanometers within the home-made wind tunnels. Dhawan taught Roddam the artwork of capturing oscilloscope traces by means of a field digital camera. The heaps of measured knowledge reworked as most interesting articles and received revealed within the prestigious journals. Because the aeronautical world acknowledged analysis work of Roddam, Dhawan insisted him on becoming a member of his guru Prof Hans Liepmann at Caltech. Liepmann reworked Roddam a confirmed fluid dynamicist.

With a doctorate and world recognition in hand, Roddam returned to the IISc to affix Dhawan. His analysis was targeted extra on stream transitions of fluids from laminar to turbulent states. The transition from supersonic to subsonic stream leading to shock waves too stored Roddam occupied. He constructed a core staff of researchers who later led the profitable aerospace tasks of the nation. At that juncture, the nation was spearheading new ideas in aviation. The sunshine fight plane (LCA) and light-weight transport plane (LTA) tasks have been sanctioned by the federal government. Roddam received deeply concerned in these tasks and labored carefully with Nationwide Aerospace Laboratories (NAL) and Hindustan Aeronautics Restricted (HAL). He received a chance to move NAL as its Director to speed up these formidable tasks.

roddam-indira-gandhi
Roddam Narasimha with then prime minister Indira Gandhi | Sourced

After his profitable stint at NAL, Roddam returned to the IISc. A sky-gazer of clouds from childhood, monsoons evinced larger curiosity in Roddam, and he arrange Centre for Atmospheric Sciences at IISc. Roddam guided the scientists at this centre to know the fluid-dynamics of cloud formation. He wrote papers on why the clouds typically seen in Bengaluru don’t unfold out like a rocket plume, however as a substitute happen in cauliflower-like heaps or raises excessive within the type of ‘towers’. Roddam mentioned the explanations behind this peculiar cloud sample of tropical areas. He ready a beneficial report on the Indian Reference Ambiance.

Having understood the ambiance at 10 or 100 km above earth, Roddam made a agency footing of fluid dynamics on the bottom. He began his experiments on the bottom meter of the ambiance on the earth. The method of understanding what precisely occurs within the skinny layer after we transfer round with our ft is an attention-grabbing analysis work Roddam undertook.

He was a scholar in each Sanskrit and Kannada and wrote many articles on science and philosophy in English. His editorial for Present Science rebutted the claims of sure scientists on the 102nd Indian Science Congress on the Maharshi Bharadwaja’s pioneering work in aviation. The reviewed journal articles, books and seminar papers on fluid dynamics in his identify are numerous.

A Fellow of the Royal Society, and a Overseas Affiliate of each the US Nationwide Academy of Engineering and the US Nationwide Academy of Sciences, Roddam was a distinguished alumnus of each Caltech and IISc. He was conferred with the distinguished Trieste Science Award, Desikothama from Visva Bharati College, Bhatnagar Prize and Padma Vibhushan amongst others.

Roddam was a part of the Scientific Advisory Council to the prime minister, Area Fee, DRDO Council and plenty of distinguished Scientific Boards of the nation along with Imaginative and prescient Group on Science & Know-how, Authorities of Karnataka.

Science Author Sudhindra Haldodderi was a scientist with DRDO and a DGM at HAL, and is at present an aerospace marketing consultant with L&T Know-how Companies Restricted



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