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Fellows Directory

Roddam Narasimha

Roddam Narasimha

Professor Roddam Narasimha FRS


Elected: 1992


Roddam Narasimha is a leader in fluid mechanical and aeronautical research in India. His ideas on the universal character of intermittency of turbulence and the evolution of turbulent spots has led to improved understanding of the transition from the laminar to the turbulent state of fluid flow, and also of the reverse process of relaminarisation. Other research of lasting significance has concerned fully turbulent wakes and boundary layers and the nature of bursts. In the field of rarefied gas dynamics, he has made major contributions to constitutive relations for free molecule flow and shockwave structure, and has recently put forward a novel theory for infinitely strong shocks. He has also worked on practical aeronautics problems, and, for example, has constructed a useful theory of performance variations in a system subject to repeated deterioration and maintenance.

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