Paper Title
Some Principles of Flow Visualization Techniques in Wind Tunnels

Nowadays, there are various ways to study gas and fluid flows in wind tunnels and are still an important field of scientific research. The objectives of the research intended to present the basic principle of flow visualization techniques in wind tunnels and to simulate, visualize, observe, and measure how the flow around the object. Keywords— Flow Visualization Technique, Wind Tunnels, Experimental Aerodynamics.