Influence of Vortex Generator on Flow Behavior of Air Stream

This research studied the influence of delta wing and delta winglet vortex generators on air flow characteristic. Normally, the vortex generator has been used for enhancing the heat transfer performance by promote the helical flow of air stream. The vortex generator was setup in the wind tunnel and the flow pattern of air stream passing the vortex generator was observed by using smoke generator. The Reynolds number of air stream was between 30,000 and 80,000. It is found that the delta winglet having 20mm fin height and 30 degree of air stream contact angle generates the maximum helical flow of air stream.

• Chakkapong Supasri
• Tanongkiat Kiatsiriroat
• Atipoang Nuntaphan

• Vortex generator
• Flow behavior
• Visual study
• Delta wing
• Delta winglet
• Smoke generator.

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