Reply To: Super well done Washington Post Article on Aptera

Aptera Community Aptera Discussions Super well done Washington Post Article on Aptera Reply To: Super well done Washington Post Article on Aptera

Aptera Community Aptera Discussions Super well done Washington Post Article on Aptera Reply To: Super well done Washington Post Article on Aptera

  • John Malcom

    Member
    September 14, 2021 at 2:15 pm

    The answer to your question is yes the same formula using different values for some variables.

    Both air and water are considered “Fluids” in the calculation. When calculating for air, the viscosity variable is 1. When calculating for water the viscosity variable is 1000 as water is 1000 times for viscus than air. A first year physics book, or of course Wikipedia will have the formula which is to complex to paste here. The drag coefficient is composed of frictional drag (viscous drag) and pressure drag (form drag).