Experimental Study on the Variation of the Driftwood Drag Coefficient Depending on Yaw Angle and Submerging Conditions

Key Points

• The study aims to understand how yaw angle and submergence conditions influence the drag coefficient of driftwood.
• Conducted systematic measurements of drag coefficients under varying yaw angles.
• Examined fully submerged and partially submerged conditions.
• Analyzed the relationship between yaw angle and fluid forces acting on driftwood models.
• Drag coefficient significantly depends on yaw angle, with minimum values occurring around 10°-20°.
• Increased yaw angle results in a larger drag coefficient for fully submerged conditions compared to partially submerged.