The Effect of Water Vapor Content on the Reynolds Number of an Air-Water Vapor Mixture Flowing through a Horizontal Air Duct

The following article presents a study on the effect of the water vapor content in air, considered as a two-phase mixture, on the Reynolds number during the flow of an air–water vapor mixture through a horizontal air duct. More specifically, the article provides an analytical description of the mathematical model that relates the change in the Reynolds number of the air–water vapor mixture flow to the relative humidity of the water vapor. The study focused on the possibility of controlling the Reynolds number of airflow solely by adjusting the relative humidity of the water vapor in the air. The mathematical model was applied for air velocities ranging from ۰ to ۱۲۸ m/s, relative humidity levels from ۰% to ۱۰۰%, and air temperatures from -۴۰ °C to ۱۵۰ °C. The figures and study’s results indicate that increasing the relative humidity level of the water vapor leads to a decrease in the Reynolds number of the air–water vapor mixture as it flows through an air duct. Additionally, it is possible to control the Reynolds number of the flowing air–water vapor mixture solely through the relative humidity of the water vapor in the mixture. This capability is particularly useful in a wide range of industrial processes

کلیدواژه ها:

Relative humidity ، Absolute Humidity ، flow ، Humid Air ، air moisture ، two-phase mixture