• Hengki Purwanto
  • Siti Rodiyah Andary
  • Hartono Hartono


Aerodynamics is a branch of science that deals with the movement of air. The movement of air appears which is caused by the rate of transportation having an impact on the body of transportation. The movement of air velocity can affect transport. In aerodynamic research requires simulations that can represent the air flow using a wind tunnel. Wind tunnel is a device used in aerodynamic research. Tunnels are made to study the effects of air moving through solid objects. Solid objects here can be various means of transportation. A wind tunnel consists of a tubular part with the object being tested mounted in the middle. Air is moved through the object with a suction fan system. Wind tunnels are instrumented with sensors that are suitable for measuring wind motions, pressure distribution, or other characteristics related to aerodynamics. Wind tunnels are of two types of wind tunnels namely open and closed paths. In open type wind tunnels, construction is simpler, cheaper, saves space and is not affected by temperature fluctuations because room temperature is relatively more stable. In the closed type air is circulated along the wind tunnel so that it is larger, more expensive and more difficult to make. The advantage of this type is that the fan used can be smaller than the open type for the same wind speed. The stage of the wind tunnel method requires several components. The component is divided into three rooms. The first room is a concentration room that serves to create smoke that is linear or flat. The second room is a test room used to see the flow of air formed against the object being observed. The third chamber is used to absorb the flow of air that passes through the concentration chamber and the test chamber. Stages of research methods with the help of smoke created to see the flow of air formed. Smoke itself serves to clarify the picture of the state of the air. From these observations, laminar flow or turbulance can be formed in the air flow that hits the object. For air speed can also vary according to our wishes. The relationship of wind speed affects the lift or thrust of an object. The targeted output Obtained a direction from further research based on valid research data for the development of air water. So the general goal is to provide practical knowledge to students. Can be used as new information in the world of engineering and learning about air flow. Can be an alternative solution for college students who want to test aerodynamic objects using wind tunnels.

Keywords: aerodynamics, wind tunnel, laminar, turbulanc, smoke.


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