Flow Investigation Around Sphere In Open Circuit Wind Tunnel

Ahmad Zharif Rabbani, Rozali (2008) Flow Investigation Around Sphere In Open Circuit Wind Tunnel. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The flow around a sphere at various heights above a plane boundry has been investigated. The flow was visualized by the smoke wire method in the wind tunnel. This report only covers the introduction of the research, the literature review which will state all the theory and equation needed to solve the problem statement and the method that will be use to complete this study. At the end of this study which will be continued later in Projek Sarjana Muda II, it is expected that at every different height will give different reading and pressure distribution around model. Behavior of the flow and vortices were observed during flow visualization. The surface pressure distribution on the sphere and the plane were determined by integrating the surface pressure of the sphere. The drag lift coefficients of the sphere are defined as empirical equations using dimensionless quantities. To validate this flow pattern we must use combination of numerical method using Ansys CFX and calculations of the results. The results expect that as the Reynolds Number increase the Drag number is also increase for both experimental and simulation.

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