A Visualization Low Speed Subsonic Wind Tunnel Design and Construction for Laboratory Application and Uses

The aim of the research is to design and construct a low speed small model of a sub-sonic wind tunnel under standard dimensions for laboratory application and purposes which is able to handle models of different types and/or sections, as well as different wing sections, and calculating the lifting, drag and moment coefficients around these sections through calculating the pressure coefficient. The model was constructed using high stainless-steel sheets that can withstand high stress levels. The inspection area is also equipped with glass panels so that we can observe the air flow around the different sections. The section is also manufactured with a hole above and below the section. The low speed small wind tunnel is also equipped with a digital manometer for calculating the rate of pressure variation around the sections as well as digital flowmeter that calculating the speed of flow. The wind tunnel is also equipped with a high-efficiency fan at one high speed and has been modified and re-controlled so that five different speeds can be applied to the device. The preliminary results were promising and by comparing those results with theoretical calculations by applying more than one specialized program, the results were found to be significant and the laboratory could be adopted.