recategorized by
0 votes
0 votes

The instantaneous stream-wise velocity of a turbulent flow is given as follows:

$u(x,y,z,t)=\overline{u}(x,y,z)+{u}'(x,y,z,t)$

The time-average of the fluctuating velocity ${u}'(x,y,z,t)$ is

  1. $\displaystyle{\frac{u'}{2}} \\$
  2. $\displaystyle{\frac{-\overline{u}}{2}} \\$
  3. $\text{zero}\\$
  4. $\displaystyle{\frac{\overline{u}}{2}}$
recategorized by

Please log in or register to answer this question.

Answer:

Related questions

0 answers
0 votes
Arjun asked Feb 24, 2017
For a floating body, buoyant force acts at thecentroid of the floating bodycenter of gravity of the bodycentroid of the fluid vertically below the bodycentroid of the dis...
0 answers
0 votes
Arjun asked Feb 24, 2017
Propane ($C_3H_8$) is burned in an oxygen atmosphere with $10$% deficit oxygen with respect to the stoichiometric requirement. Assuming no hydrocarbons in the products, t...