ESG345 semester wrap-up

Match the following symbols with their definitions.

• mass density

• weight density

• boundary layer thickness

Tags

NGSS.HS-PS4-3

• True
• False

For internal flow through a pipe, the characteristic length L for Re is the ​ (a)   but for external flow across a flat plate it would be the ​ (b)   of the plate. The local Re uses ​ (c)   as the symbol for the location.

• diameter
• length
• x

The batmobile has to stop quickly, so it opens its parachutes to increase __________.

• speed
• lift
• drag
• thrust

For a turbulent head loss problem, we may need the Moody chart to read the friction factor. Which of these is needed to read the Moody chart? Check all that apply.

• the Reynolds number

• the pressure drop

• your eyeballs

Which ESG-345 topic was your favorite?