# Formula Symbols - V

Written by Jerry Ratzlaff. Posted in Nomenclature & Symbols for Engineering, Mathematics, and Science

SymbolGreek SymbolDefinitionUSMetric
$$Va$$ - Vadasz number dimensionless number dimensionless number
$$p_v$$ - vapor pressure $$lbf/ft^2$$ $$Pa$$
$$v$$ - velocity $$ft/sec$$ $$m/s$$
$$v_s$$ - velocity of steam $$ft/sec$$ $$m/s$$
$$v_w$$ - velocity of water $$ft/sec$$ $$m/s$$
$$\Delta v$$ delta velocity differential $$ft/sec$$ $$m/s$$
$$v_d$$ - velocity differential $$ft/sec$$ $$m/s$$
$$VP$$ - velocity pressure $$in\;wg$$ $$Pa$$
$$Y$$ - vertical position $$ft$$ $$m$$
$$Y$$ - vertical position $$ft$$ $$m$$
$$\eta$$ eta viscosity coefficient - $$Pa \cdot s$$
$$VI$$ - viscosity index - -
$$e$$ - void ratio - -
$$E$$ - volt $$volt$$ $$volt$$
$$V$$ - volt $$volt$$ $$volt$$
$$E$$ - voltage $$volt$$ $$volt$$
$$V$$ - voltage $$volt$$ $$volt$$
$$V$$ - volume $$ft^3$$ $$m^3$$
$$\Delta V$$ delta volume differential $$ft^3$$ $$m^3$$
$$V_d$$ - volume differential $$ft^3$$ $$m^3$$
$$\beta$$ beta volumetric coefficient of expansion $$1/ ^\circ R$$ $$1/ K$$
$$VE$$ - volumetric efficiency - -
$$V$$ - volumetric flow rate $$ft^3/sec$$ $$m^3/s$$
$$Q$$ - volumetric flow rate $$ft^3/sec$$ $$m^3/s$$
$$B$$ - volumetric fraction - -
$$\alpha_v$$ - volumetric thermal expansion coefficient - -