# Formula Symbols - V

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

For other symbols see:  A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

SymbolGreek SymbolDefinitionUSMetric
$$Va$$ - Vadasz number dimensionless number dimensionless number
$$p_v$$ - vapor pressure $$lbf\;/\;ft^2$$ $$Pa$$
$$c \;,\; v \;,\; u \;,\; w$$ - velocity $$ft\;/\;sec$$ $$m\;/\;s$$
$$c_l$$ - velocity of longitudinal waves - -
$$c$$ - velocity of sound - -
$$c_t$$ - velocity of transverse waves - -
$$v_s$$ - velocity of steam $$ft\;/\;sec$$ $$m\;/\;s$$
$$v_w$$ - velocity of water $$ft\;/\;sec$$ $$m\;/\;s$$
$$v_d \;,\; \Delta v$$ Delta velocity differential $$ft\;/\;sec$$ $$m\;/\;s$$
$$\nu$$ nu velocity gradient - -
$$VP$$ - velocity pressure $$in\;wg$$ $$Pa$$
$$y$$ - vertical distance $$ft$$ $$m$$
$$y$$ - vertical position $$ft$$ $$m$$
$$R$$ - vertical reaction load at bearing point $$lbf$$ $$N$$
$$V$$ - vertical shear force $$lbf$$ $$N$$
$$v$$ - vibrational - -
$$\eta \;,\; \mu$$ eta , mu viscosity - -
$$\eta$$ eta viscosity coefficient - $$Pa \cdot s$$
$$\Delta \eta \;,\; \eta_d$$ eta viscosity differential - -
$$VI$$ - viscosity index - -
$$e$$ - void ratio - -
$$E \;,\; V$$ - volt $$volt$$ $$volt$$
$$E \;,\; V$$ - voltage $$volt$$ $$volt$$
$$VR$$ - voltage ratio - -
$$V \;,\; \upsilon$$ upsilon volume $$ft^3$$ $$m^3$$
$$V_d \;,\; \Delta V$$ Delta volume differential $$ft^3$$ $$m^3$$
$$\phi$$ phi volume fraction - -
$$\theta$$ theta volume strain - -
$$\beta$$ beta volumetric coefficient of expansion $$1\;/\; ^\circ R$$ $$1\;/\; K$$
$$VE$$ - volumetric efficiency - -
$$Q \;,\; V \;,\; \dot {V}$$ - volumetric flow rate $$ft^3\;/\;sec$$ $$m^3\;/\;s$$
$$B$$ - volumetric fraction - -
$$\alpha_v$$ alpha volumetric thermal expansion coefficient - -