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Welcome To David's Home Page
Welcome To David's Home Page
Dr. David Nagarathinam was conferred the degree of Doctor of Philosophy by Indian Institute of Technology Madras (IITM), Chennai in September, 2019 for his thesis work entitiled, "Vortex Instability and Bistability in Rotating Flows". Before joining IITM, he completed his Batchelor's Degree in Aeronautical Engineering under Anna University in 2010 and earned his Master of Engineering degree from the Department of Space Engineering and Rocketry, Birla Institute of Technology Mesra, Ranchi in 2012. As a post-doctoral researcher, his current research interests include fluid mechanics, vortex instability, large-scale rotating flows and cavitating flows.
Dr. David Nagarathinam was conferred the degree of Doctor of Philosophy by Indian Institute of Technology Madras (IITM), Chennai in September, 2019 for his thesis work entitiled, "Vortex Instability and Bistability in Rotating Flows". Before joining IITM, he completed his Batchelor's Degree in Aeronautical Engineering under Anna University in 2010 and earned his Master of Engineering degree from the Department of Space Engineering and Rocketry, Birla Institute of Technology Mesra, Ranchi in 2012. As a post-doctoral researcher, his current research interests include fluid mechanics, vortex instability, large-scale rotating flows and cavitating flows.
His fluid mechanics lecture videos and the associated transcripts and slides are shared here for the benefit of all students and researchers.
His fluid mechanics lecture videos and the associated transcripts and slides are shared here for the benefit of all students and researchers.
Lecture Videos
Lecture Videos
Mass Conservation Equation
Mass Conservation Equation
Derivation of Mass Conservation Equation in Fluid Mechanics
Momentum Conservation Equation
Momentum Conservation Equation
Derivation of Momentum Conservation Equation
Fluid Mechanics Lectures:
01 Mass Conservation Equation: Transcript Slides
02 Momentum Conservation Equation: Transcript Slides
03 Potential flows: Lecture
04 Cartesian tensors: Lecture
Regression analysis: Regression analysis is one of the powerful data analysis techniques utilized by engineers and researchers. The presentations on simple linear regression, multiple linear regression, polynomial regression, general linear least squares method and non-linear regression are given below together with the transcript of the presentation. MATLAB .m script files for the regression analysis are also provided.
Simple linear regression, multiple linear regression analysis: Transcript
Polynomial regression, general linear least squares method, non-linear regression: Transcript
Regression analysis: MATLAB implementation: Transcript
Simple linear regression, multiple linear regression
Polynomial regression, general linear least squares method, non-linear regression
Regression Analysis: MATLAB Implementation
.m matlab script files:
1) Simple linear regression 2) Multiple linear regression: Power law model1 3) Multiple linear regression: Power law model2 4) Polynomial regression
5) Polynomial regression: Polyfit,polyval 6) Nonlinear regression: nonlinear_regression.m 7) Nonlinear regression: prob.m
David's Publications List:
1) David Nagarathinam, A. Sameen and M. Mathur, "Centrifugal instability in non-axisymmetric vortices", J. FluidMech., 769, 26-45 (2015).
2) David Nagarathinam, A. Sameen and M. Mathur, "An analytical criterion for centrifugal instabilityin non-axisymmetric vortices", European Turbulence Conference, TU Delft, Netherlands, Aug 2015.
3) David Nagarathinam, Kiseong Kim, Byoung-Kwon Ahn, Cheolsoo Park, Gun-Do Kim, and Geun-Tae Yim, "Experimental investigation of bubbly flow by air injection on an inclined hydrofoil", Physics of Fluids 33, 043309 (2021)
4) David Nagarathinam; Ji-Woo Hong; Byoung-Kwon Ahn; Cheolsoo Park; Gun-Do Kim; Il-Sung Moon, "Dynamics of tip vortex flow over three dimensional hydrofoils by LDV measurements", Journal of Ocean Engineering, Volume 266, Part 1, 15 December 2022, 112748
5) Shin, S.; Hong, J.-W.; Nagarathinam, D.; Ahn, B.-K.; Park, S.-G. "Tip Vortex Cavitation and Induced Noise Characteristics of Hydrofoils". Appl. Sci. 2021, 11, 5906. https://doi.org/10.3390/app11135906
6) Kiseong Kim†, David Nagarathinam†, Byoung-Kwon Ahn, Cheolsoo Park, Gun-Do Kim, Il-Sung Moon. "Air–Water Bubbly Flow by Multiple Vents on a Hydrofoil in a Steady Free-Stream". Appl. Sci. 2021, 11(21), 9890
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