# Formula Symbols - W

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
$$W$$ - Wahl correction factor - -
$$q$$ - water flow rate increment $$gpm$$ $$L \;/\; s$$
$$WHP$$ - water horsepower $$hp$$ -
$$WkW$$ - water kilowatts   $$kW$$
$$WS$$ - water surface - -
$$P$$ - watt $$Watt$$ $$Watt$$
$$H$$ - wave height $$ft$$ $$m$$
$$\lambda$$ lambda wavelength $$ft$$ $$m$$
$$\Psi$$ Psi wave function - -
$$\sigma^1$$ sigma wave number - -
$$\sigma$$ sigma wave vector - -
$$\lambda$$ lambda wave velocity $$ft/sec$$ $$m/s$$
$$A_{web}$$ - web area in a steel beam equal to the depth x web thickness $$in^2 \;or\; ft^2$$ $$mm^2 \;or\; m^2$$
$$We$$ - Weber number dimensionless number dimensionless number
$$G \;or\; P \;or\; W$$   weight $$lbf$$ $$N$$
$$\gamma$$ gamma weight density - -
$$Wi$$ - Weissenberg number dimensionless number dimensionless number
$$W$$ - weld size $$in$$ $$mm$$
$$A_{throat}$$ - weld, area cross the throat of the weld $$in^2 \;or\; ft^2$$ $$mm^2 \;or\; m^2$$
$$C_M$$ - wet service factor for wood design - -
$$P_w$$ - wetted perimeter - -
$$M$$ - whole number - -
$$w$$ - width $$ft$$ $$m$$
$$b$$   width, often cross section $$in \;or\; ft$$ $$mm \;or\; m$$
$$b_f$$ - width of the flange of a steel beam cross section $$in$$ $$mm$$
$$\alpha$$ alpha Womersley number dimensionless number dimensionless number
$$W$$ - work $$lbf-ft$$ $$J$$
$$W$$ - work $$Btu$$ $$kJ$$
$$W$$ - work $$HP-hr$$ $$MJ$$
$$W$$ - work done on a system $$lbf-ft$$ $$kW$$
$$\phi$$ phi work function - -
$$W$$ - work per unit mass $$Btu\;/\;lbm$$ $$kJ\;/\;kg$$