aerodynamics of balloons

The aerodynamics of balloons involves how they move through the air based on their shape, size, and the temperature of the gases inside. Hot air balloons, for example, rise because heating the air inside makes it less dense than the surrounding cooler air, creating lift. The shape of the balloon helps direct airflow smoothly, reducing drag. When a pilot adjusts the burner, they control ascent or descent by changing the internal air temperature. Overall, the interaction between the balloon’s buoyancy and airflow determines how it rises, falls, and maneuvers in the sky.