01 Intro

Last Updated: 2 years ago2023-01-25 ; Contributors: AhmedThahir

Pressure

$$\begin{aligned} P &= \frac F A \\ &= \rho g h \\ P_\text{abs} &= P_\text{atm} + P_\text{gage} \\ &= P_\text{atm} - P_\text{vac} \\ 1 \text{ bar} &= 100 \text{ kPa} \end{aligned}$$

Manometer

Denser fluid will be below

$$\begin{aligned} P_\text{a} &= P_\text{b} \\ P_{g_1} + \rho_1 g h_1 &= P_{g_2} + \rho_2 g h_2 \end{aligned}$$

Terms

Term	Meaning
Specific Gravity	SG =
Cycle	Initial and final properties are the same
Steady Flow	Properties are independent of time
Uniform Flow	Properties are independent of location

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