(a)
The primary dimensions of pressure or stress in F-L-T system.
Answer to Problem 98P
The dimensions of stress is
Explanation of Solution
In M-L-T system,
Now, write primary dimension of mass in F-L-T system,
Stress is defined as force per unit area.
In exponential form,
In F-L-T system,
On substituting the value from equation (i),
(b)
The primary dimensions of moment or torque in F-L-T system.
Answer to Problem 98P
The primary dimension of energy is
Explanation of Solution
In M-L-T system,
Now, write primary dimension of mass in F-L-T system,
Moment is defined as the product of force and length of arm
In exponential form, it can be expressed as,
In F-L-T system,
On substituting the value from equation (i),
(c)
The primary dimensions of work or energy in F-L-T system.
Answer to Problem 98P
The primary dimension of energy is
Explanation of Solution
In M-L-T system,
Now, write primary dimension of mass in F-L-T system,
Energy: It is defined as the capacity of doing work.
In exponential form, it can be expressed as,
In F-L-T system,
On substituting the value from equation (i),
Surface tension,
It is defined as the behavior of fluid to minimize the area by shrinking into the minimum surface area possible.
In M-L-T system,
Now, write primary dimension of mass in F-L-T system,
Viscosity: A physical property of fluid which denotes the resistance to flow.
Viscosity
In M-L-T system,
Now, in F-L-T system,
In M-L-T system,
Now, write primary dimension of mass in F-L-T system,
Want to see more full solutions like this?
Chapter 7 Solutions
Fluid Mechanics: Fundamentals and Applications
- Heat energy is transferred to 1.36 kg of air which causes its temperature to increase from 40" CO 468°C. Calculate, for the two separate cases of heat transfer at (a) constant volume, (b) constant pressure: the quantity of heat energy transferred, (ii) the external work done, (iii) the increase in internal energy. Take cv and cp as 0.718 and 1.005 kJ/kgK respectivelyarrow_forwardA flat circular plate is 500 mm diameter. Calculate the theoretical quantity or heat radiated per hour when its temperature is 215°C and the temperature of its surrounds is 45°C. Take the value of the radiation constant to be 5.67 × 10^11 kJ/m2s K4.arrow_forwardDescribe Atmospheric Air and how it reacts with carbon in combustionarrow_forward
- 0.5 kg of ice at —5°C is put into a vessel containing 1.8kg of water at 17°C and mixed together, the result being a mixture of ice and water at 0°C. Calculate the final masses of ice and water, taking the water equivalent of the vessel to be 0.148 kg, specific heat of ice 2.04 kilkg K and latent heat of fusion 335 kJ/kg.arrow_forwardA condenser vacuum gauge reads 715 mmHg when the barometer stands at 757 mmHg. State the absolute pressure in the condenser in kN/m2 and bars.arrow_forwardSketch and Describe a timing diagram for a 2 stroke diesel enginearrow_forward
- Manipulate the formula for converting temperature from Fahrenheit to Celsiusarrow_forwardDefine Temperature, Pressure, and Absolute Temperature.arrow_forwardAn air reservoir contains 20 kg of air at 3200 kN/m2 gauge and 16°C. Calculate the new pressure and heat energy transfer if the air is heated to 35°C. Neglect any expansion of the reservoir, take R for air = 0.287 kJ/kgK, specific heat at constant volume c, = 0.718 kJFg K, and atmospheric pressure = 100 kN/m2arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning