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Establishing Temperature Dependency of the Aerodynamic Drag using CFD and Experimental Analysis

Affiliations

  • School of Mechanical Engineering (SMEC), VIT University, Vellore - 632014, Tamil Nadu, India

Abstract


Objective: The study focuses on finding out, whether the flow temperature plays a role in the aerodynamic drag experienced by the moving body or not. Method/Analysis: For doing so, a small scale wind tunnel was constructed and its initial recorded data was matched with the simulated results. This gave an extent to which the fabricated tunnel is accurate or correct in determining drag. Next the temperature of flow in tunnel would be changed physically, to get drag for an extended range of temperature difference. The results will be observed with the help of plotted graphs, and conclusions would be drawn. Findings: The study revealed the temperature dependency of drag. It tends to increase with temperature. With an increase in 3°C in the temperature the drag coefficient was found to increase by 0.025. Novelty: The tunnel design can be further improved to provide accurate dependence relation.

Keywords

Acquisition System, Aerodynamic Drag, Digital Data, Drag Coefficient, Drag Dependence on temperature, Flow Temperature, Wind tunnel.

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References


  • John L. Design and application of low speed wind tunnels; 2002.
  • Young O, Larry A. Overview of the testing of a small-scale proprotor. National aeronautics and space administration Moffett field CA AMES research center. 1999.
  • Kakate VL. Study of measurement and control aspects of wind tunnel. Int J Innov Res Electr Electron Instrum Control Eng. 2014; 2(3):1–4.
  • Yang KNC. Design of wind tunnel (fluid flow analysis). Diss Universiti Malaysia Pahang; 2012. p. 1–24.
  • Michael SS, Deters RW, Williamson GA. Wind tunnel testing airfoils at low Reynolds numbers. AIAA Paper. 2011; 875:1–32.
  • Kiyoshi U. Wind tunnel experiments on how thermal stratification affects flow in and above urban street canyons. Atmospheric Environment. 2000; 34(10):1553–62.
  • Lindgren B, Johansson AV. Design and evaluation of a low-speed wind-tunnel with expanding corners. 2002.
  • Fischer O. CFD approach to evaluate wind-tunnel and model setup effects on aerodynamic drag and lift for detailed vehicles. No: 2010-01-0760. SAE Technical Paper; 2010.
  • Sundararaj M, Elangovan S, Sridhar BTN. Similarity analysis of pressure distribution along the wake axis of elliptic cones. Indian Journal of Science and Technology. 2014; 5(7):1–5.

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