Physics, 04.12.2019 21:31 cheergirl2133
In a particular application involving airflow over a heated surface, the boundary layer temperature distribution, t(y), may be approximated as:
[ t(y) - ts / t[infinity] - ts ] = 1 - e^( -pr (u[infinity]y / v) )
where y is the distance normal to the surface and the prandtl number, pr = cpu/k = 0.7, is a dimensionless fluid property.
a.) if t[infinity] = 380 k, ts = 320 k, and u[infinity]/v = 3600 m-1, what is the surface heat flux? is this into or out of the wall? (~-5000 w/m2 ,
b.) plot the temperature distribution for y = 0 to y = 0.002 m. set the axes ranges from 380 to 320 for temperature and from 0 to 0.002 m for y. be sure to evaluate properties at the film temperature.
Answers: 2
Physics, 22.06.2019 13:30
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Physics, 22.06.2019 14:10
What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?
Answers: 2
Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
Answers: 1
In a particular application involving airflow over a heated surface, the boundary layer temperature...
Mathematics, 31.08.2021 20:10
Arts, 31.08.2021 20:10
Computers and Technology, 31.08.2021 20:10
Health, 31.08.2021 20:10
Mathematics, 31.08.2021 20:10
Mathematics, 31.08.2021 20:10
Advanced Placement (AP), 31.08.2021 20:10