Shown here is a cool picture of water being released at 300,000 gallons per second in the

Question:

Shown here is a cool picture of water being released at 300,000 gallons per second in the spring of 2008. This was part of a revitalization effort for the ecosystem of the Grand Canyon and the Colorado River. Estimate the Reynolds number of the pipe flow. Is it laminar or turbulent?

Shown here is a cool picture of water being released