Evaluation and Effect of Micro Bubble Lubrication in Drag Reduction

6 Pages Posted: 24 Apr 2020

See all articles by Abhishek Bhardwaj

Abhishek Bhardwaj

Delhi Technological University - Department of Mechanical Engineering

Akshay Boora

Delhi Technological University - Department of Mechanical Engineering

Anant Vashist

Delhi Technological University - Department of Mechanical Engineering

Raj Kumar Singh

Department of Mechanical Engineering, Delhi Technological University, Delhi, India

Date Written: January 19, 2020

Abstract

This paper aims to study the reduction of skin friction coefficient (Cf) of a flat plate by injecting micro bubbles onto the surface of the plate. Numerical simulation of flow of water past a flat plate was carried out at different Reynolds numbers. Skin friction coefficient (Cf) was found and compared with research papers and suitable empirical formula. The numerical solution was solved in ANSYS. Subsequently, micro bubbles were injected and the new Cf found. The velocity of injection of the bubbles was then varied. Drag reduction was observed for flat plate post micro bubble injection and injection velocity was varied, corresponding results were noted. The results agree well. This paper verifies effect of micro bubble injection in skin friction drag reduction computationally.

Keywords: Micro bubble, skin friction coefficient, Reynold number

Suggested Citation

Bhardwaj, Abhishek and Boora, Akshay and Vashist, Anant and Singh, Raj Kumar, Evaluation and Effect of Micro Bubble Lubrication in Drag Reduction (January 19, 2020). International Conference of Advance Research & Innovation (ICARI) 2020, Available at SSRN: https://ssrn.com/abstract=3566674 or http://dx.doi.org/10.2139/ssrn.3566674

Abhishek Bhardwaj

Delhi Technological University - Department of Mechanical Engineering

Delhi
India

Akshay Boora

Delhi Technological University - Department of Mechanical Engineering

Delhi
India

Anant Vashist

Delhi Technological University - Department of Mechanical Engineering

Delhi
India

Raj Kumar Singh (Contact Author)

Department of Mechanical Engineering, Delhi Technological University, Delhi, India ( email )

Delhi, 110042
India

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