【Daily Question】Theoretical Foundation 2019.12.19
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This post was last edited by Qingse Nianhua on 2019-12-19 08:01. Fill-in-the-blank question: The density of air under standard conditions is 1.29 kg/m3; what is its density at 0.25 Mpa (gauge pressure) and 80 degrees Celsius? The reasons for fluid resistance are ( ) and ( ). Answer: 2.5 kg/m3, internal frictional force, flow state of the fluid. Hint: An additional reward will be given to those who can explain the solution process; the answer can be found here!
2.64 Viscosity of particle friction and inertia of particle impact
2.49 kg/m3, internal friction force, flow state of the fluid
2.5 kg/m3, internal frictional force, flow state of the fluid
2.5 kg/m3, internal frictional force, flow state of the fluid
2.5?kg/m3, internal frictional force, flow state of the fluid
Internal friction force: 2.5 kg/m3, flow state of the fluid
2.5 kg/m3, internal frictional force, flow state of the fluid
2.5 kg/m, viscous drag caused by fluid viscosity, pressure difference drag resulting from differences in fluid flow velocity around the object
2.64kg/m3； Internal frictional force, flow state of the fluid