Friction Velocity Analysis: Comparing Original Model to Two Schemes under Blowing Airflow

This study analyzes the friction velocity on the surface of bogie 2 under a blowing speed of 4 m/s, comparing an original model to two alternative schemes. The blowing airflow significantly alters the flow characteristics in the bogie region, resulting in variations in friction velocity. Table 3 presents the average friction velocity on the surface of bogie 2 components, indicating that scheme 1 exhibits a higher friction velocity than scheme 2. The friction velocity on each damper is higher than that of the original model, suggesting that snow particles on these components will experience greater shear forces, potentially leading to unstable snow particle deposition.