What is a typical Reynolds number?
turbulent flow occurs over a range of Reynolds numbers from approximately 2,300 to 4,000, regardless of the nature of the fluid or the dimensions of the pipe or the average velocity. All that matters is that this specific combination of the parameters, known as the Reynolds number, fall in the range indicated.
What is the Reynolds number of air?
The ratio μ/ρ is called v, the kinematic viscosity, also depending on the fluid density and temperature. For dry air at standard sea level conditions the value of v is 14.6 × 10–6. The higher the Reynolds number, the lesser the viscosity plays a role in the flow around the airfoil.
What is the dimensional formula of surface tension?
Or, T = [M1 L1 T-2] × [L-1] = M1 T-2. Therefore, surface tension is dimensionally represented as M1 T-2.
What is the frequency of the vibration?
The number of cycles that a vibrating object completes in one second is called frequency. The unit of frequency is hertz (Hz). One hertz equals one cycle per second.
How do you find the frequency of a vibration?
Divide the velocity of the wave, V, by the wavelength converted into meters, λ, in order to find the frequency, f. Write your answer. After completing the previous step, you will have completed your calculation for the frequency of the wave. Write your answer in Hertz, Hz, which is the unit for frequency.
What is dimensional formula work?
Work = Force × Displacement. Or, W = [M1 L1 T-2] × [M0 L1 T0] = [M1 L2 T-2]. Therefore, work is dimensionally represented as [M1 L2 T-2].
What is the dimensional formula of height?
Explanation: Height x breadth x length x dimension = mass. 1 x 1 x 1 x 1 = 1.
What is the dimensional formula of oscillation?
T=2πKmgA. K : Represents the kinetic energy, in mass, g acceleration due to gravity and A is unknown.
What is the time period of oscillation?
The time for one oscillation is the period T. The number of oscillations per unit time is the frequency f. These quantities are related by f=1T f = 1 T .
What is the dimension of simple pendulum?
Example 10-16. Oscillating Period of a Simple Pendulum
| Variable | Symbol | Dimension |
|---|---|---|
| length | L | m |
| mass | M | kg |
| gravitational acceleration | g | m·s−2 |
| oscillating period | t | s |
How do you calculate time period of oscillation?
Calculate the time of one oscillation or the period (T) by dividing the total time by the number of oscillations you counted. Use your calculated (T) along with the exact length of the pendulum (L) in the above formula to find “g.” This is your measured value for “g.”