Answer:
The flow in a wide rectangular channel with a flow velocity of 1 m/s and a flow depth of 1 m is most likely laminar.
Step-by-step explanation:
Laminar flow typically occurs at lower velocities and is characterized by smooth and orderly movement of fluid layers, with minimal mixing. Turbulent flow, on the other hand, is characterized by chaotic, irregular motion and typically occurs at higher velocities. At these conditions, the Reynolds number (Re) is likely to be low, which is indicative of laminar flow. To confirm, you can calculate the Reynolds number using the formula Re = (ρ * V * D) / μ, where ρ is the density of the fluid, V is the velocity, D is the hydraulic diameter of the channel, and μ is the dynamic viscosity of the fluid. If Re is less than a critical value (typically around 2,000), it's laminar; otherwise, it's turbulent.