Formula Symbols - H

Mathematics and Management Rules and Symbols

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"H" Formula Symbols 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
Symbol	Greek Symbol	Definition	English	Metric	SI	Value
$Hg$	-	Hagen number	dimensionless	dimensionless	dimensionless	-
$\Delta p$	-	Hagen–Poiseuille	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg- m^{-1}-s^{-2}$	-
$T_{\frac{1}{2}}$ , $\;\tau_{\frac{1}{2}}$	tau	half life	-	-	-	-
$A_h$ , $\;R_h$	-	Hall coefficient	-	-	-	-
$H$	-	Hamiltonian function	-	-	-	-
$Ha$	-	Hartmann number	dimensionless	dimensionless	dimensionless	-
$E_h$	-	Hartree energy	$lbf-ft$	$J$	$kg - m^2 - s^{-2}$	$4.359\;744\;722\;2071\;(85)\;x\;10^{-18}$ $J$
$Ha$	-	Hatta number	dimensionless	dimensionless	dimensionless	-
$P_h$	-	Havnes number	dimensionless	dimensionless	dimensionless	-
$C$	-	Hazen-Williams coefficient	dimensionless	dimensionless	dimensionless	-
$Q$	-	Hazen-Williams flow rate	$\large{\frac{ft^3}{sec}}$	$\large{\frac{m^3}{s}}$	$m^3-s^{-1}$	-
$p_d$	-	Hazen-Williams flow through a pressurized pipe	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg- m^{-1}-s^{-2}$	-
$v$	-	Hazen-Williams flow through a open channel	$\large{\frac{ft}{sec}}$	$\large{\frac{m}{s}}$	$m-s^{-1}$	-
$h_f$	-	Hazen-Williams head loss due to friction	$ft$	$m$	$m$	-
$m$	-	Hazen-Williams hydraulic grade	$ft$	$m$	$m$	-
$r_h$	-	Hazen-Williams hydraulic radius	$in$	$mm$	$mm$	-
$v$	-	Hazen-Williams mean flow velocity	$\large{\frac{ft}{sec}}$	$\large{\frac{m}{s}}$	$m - s^{-1}$	-
$d$	-	Hazen-Williams pipe inside diameter	$in$	$mm$	$mm$	-
$hc$	-	hc	constant			-
$h$	-	head	$ft$	$m$	$m$	-
$h_f$	-	head friction loss in fittings and valves	dimensionless	dimensionless	dimensionless	-
$h_f$	-	head fractional resistance	-	-	-	-
$HGV$	-	head gasket volume	$in^3$	$mm^3$	$mm^3$	$HGV$ -
$h_l$	-	head loss	$ft$	$m$	$m$	-
$h_f$	-	head loss due to ftiction	$ft$	$m$	$m$	-
$p$	-	head pressure	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$v$	-	head velocity	$\large{\frac{ft}{sec}}$	$\large{\frac{m}{s}}$	$m-s^{-1}$	-
$h_{dv}$	-	head velocity discharge	$ft$	$m$	$m$	-
$h_{sv}$	-	head velocity suction	$ft$	$m$	$m$	-
$Q$	-	heat	$\large{\frac{Btu}{lbm}}$	$\large{\frac{kJ}{kg}}$	$kJ-kg^{-1}$	-
$\partial$	partial	heat as a path function	-	-	-	-
$C$ , $\;c_p$	-	heat capacity	$\large{\frac{Btu}{F}}$	$\large{\frac{kJ}{K}}$	$kJ-K^{-1}$	-
$C_p$	-	heat capacity at constant pressure	$\large{\frac{Btu}{F}}$	$\large{\frac{kJ}{K}}$	$kJ-K^{-1}$	-
$C_v$	-	heat capacity at constant volume	$\large{\frac{Btu}{F}}$	$\large{\frac{kJ}{K}}$	$kJ-K^{-1}$	-
$\gamma$ , $\;\kappa$ , $\;k$	gamma, kappa	heat capacity ratio	dimensionless	dimensionless	dimensionless	-
$Q_c$	-	heat conduction	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$\lambda$	lambda	heat conductivity	-	-	-	-
$C_p$	-	heat constant pressure	-	-	-	-
$C_v$	-	heat constant volume	-	-	-	-
$q$	-	heat content	$\large{\frac{Btu}{lbm}}$	$\large{\frac{J}{kg}}$	$J-kg^{-1}$	-
$Q$	-	heat convection	-	-	-	-
$\Delta Q$	-	heat differential	$\large{\frac{Btu}{lbm}}$	$\large{\frac{J}{kg}}$	$J-kg^{-1}$	-
$\kappa$	kappa	heat diffusivity	$\large{\frac{ft^2}{sec}}$	$\large{\frac{m^2}{s}}$	$m^2-s^{-1}$	-
$Q$ , $\;q$	-	heat energy	-	-	-	-
$Q$ , $\;Q_f$ , $\;\Phi$	Phi	heat flow rate	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q"$	-	heat flux	$\large{\frac{Btu}{hr-ft^2}}$	$\large{\frac{W}{m^2}}$	$W-m^{-2}$	-
$q$	-	heat loss	$F$	$C$	$x+273.15\;K$	-
$K$	-	heat loss coefficient of a device	dimensionless	dimensionless	dimensionless	-
$d$	-	heat penetration	$in$	$mm$	$mm$	-
$Q$ , $\;\phi$	phi	heat radiation	-	-	-	-
$HRR$	-	heat release rate	$\large{\frac{Btu}{ft^2-hr}}$	$\large{\frac{W}{m^2}}$	$W-m^{-2}$	-
$Q$	-	heat transfer	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q_c$	-	heat transfer by conduction	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$R_t$	-	heat transfer by conduction resistance through a cylindrical wall	$\large{\frac{hr-F}{Btu}}$	$\large{\frac{K}{W}}$	$K-W^{-1}$	-
$Q_c$	-	heat transfer by conduction through a cylindrical wall	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q_c$	-	heat transfer by conduction through a plane wall	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q_c$	-	heat transfer by convection	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q_r$	-	heat transfer by radiation	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$h$ , $\;h_c$	-	heat transfer coefficient	$\large{\frac{Btu}{hr-ft^2-F}}$	$\large{\frac{W}{m^2-K}}$	$W-m^{-2} -K^{-1}$	-
$h_{wall}$	-	heat transfer coefficient of a pipe wall	$\large{\frac{Btu}{hr-ft^2-F}}$	$\large{\frac{W}{m^2-K}}$	$W-m^{-2} -K^{-1}$	-
$Q_t$	-	heat transfer rate	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$Q$	-	heat transfer to a system	$\large{\frac{Btu}{hr}}$	$W$	$kg-m^2-s^{-3}$	-
$H_v$	-	heat of vaporization	$\large{\frac{Btu}{lbm}}$	$\large{\frac{J}{kg}}$	$J-kg^{-1}$	-
$HV$	-	heating value	$\large{\frac{Btu}{lbm}}$	$\large{\frac{kJ}{kg}}$	$J-kg^{-1}$	-
$h$	-	height	$ft$ or $in$	$m$ or $mm$	$m$ or $mm$	-
$h_1$	-	height of drivers' eyes above the roadway surface	$ft$	$m$	$m$	-
$h_2$	-	height of object above the roadway surface	$ft$	$m$	$m$	-
$He$	-	Hedstrom number	dimensionless	dimensionless	dimensionless	-
$h$	-	height of fluid column	$ft$ or $in$	$m$ or $mm$	$m$ or $mm$	-
$A$	-	Helmholtz function	-	-	-	-
$He$	-	Helmholtz number	dimensionless	dimensionless	dimensionless	-
$C$	-	Henry's law	$\large{\frac{mol}{gal}}$	$\large{\frac{mol}{L}}$	$mol-L^{-1}$	-
$H_s$	-	Henry's law constant (solubility)	-	$\large{\frac{mol}{m^3-Pa}}$	$mol-m^{-3}-Pa^{-1}$	-
$H_v$	-	Henry's law constant (volatility)	-	$\large{\frac{m^3-Pa}{mol}}$	$m^3-Pa-mol^{-1}$	-
$HHV$	-	higher heating value	$\large{\frac{MMBtu}{lbm}}$	$\large{\frac{W}{m^2}}$	$W-m^{-2}$	-
$\sigma_h$	sigma	hoop stress	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$H$	-	horizontal cable force	$lbf$	$N$	$kg - m - s^{-2}$	-
$x$	-	horizontal distance	$ft$	$m$	$m$	-
$x$	-	horizontal distance from reaction to point on beam	$in$	$mm$	$mm$	-
$x$	-	horizontal position	$ft$	$m$	$m$	-
$R$	-	horizontal range of a projectile	$ft$	$m$	$m$	-
$H$	-	horizontal reaction load at bearing load	$lbf$	$N$	$kg - m - s^{-2}$	-
$HP$ , $\;hp$	-	horsepower	$\large{\frac{lbf-ft}{sec}}$	$\large{\frac{J}{s}}$	$J-s^{-1}$	-
$HWD$	-	hot well depression	-	-	-	-
$H_0$	-	Hubble constant	-	$\large{\frac{1}{s}}$	$1-s^{-1}$	$2.25\;x\;10^{-18}$ $\large{\frac{1}{s}}$
$\omega$	omega	humidity ratio	$\large{\frac{lbm}{lbm}}$	$\large{\frac{kg}{kg}}$	$kg-kg^{-1}$	-
$k$	-	hydraulic conductivity	$\large{\frac{ft}{day}}$	$\large{\frac{m}{day}}$	$m-day^{-1}$	-
$h_d$	-	hydraulic depth	$ft$	$m$	$m$	-
$d_h$	-	hydraulic diameter	$ft$	$m$	$m$	-
$d_h$	-	hydraulic diameter of a duct, pipe or tube	$in$	$mm$	$mm$	-
$d_h$	-	hydraulic diameter of a rectangular tube	$ft$	$m$	$m$	-
$d_h$	-	hydraulic diameter of a right triangle	$ft$	$m$	$m$	-
$d_h$	-	hydraulic diameter of a square tube	$in$	$mm$	$mm$	-
$d_h$	-	hydraulic diameter of a tube within a tube	$in$	$mm$	$mm$	-
$d_h$	-	hydraulic diameter of an ellipse	$in$	$mm$	$mm$	-
$d_h$	-	hydraulic diameter of an isosceles triangle	$ft$	$m$	$m$	-
$n_h$		hydraulic efficiency	dimensionless	dimensionless	dimensionless	-
$E_h$	-	hydraulic energy	$lbf-ft$	$J$	$kg - m^2 - s^{-2}$	-
$i$	-	hydraulic gradient	dimensionless	dimensionless	dimensionless	-
$Q$	-	hydraulic gradient flow rate	$\large{\frac{ft^3}{sec}}$	$\large{\frac{m^3}{s}}$	$m^3-s^{-1}$	-
$h$	-	hydraulic head	$ft$	$m$	$m$
$HHP$ , $\;HP_h$	-	hydraulic horsepower	$\large{\frac{lbf-ft}{sec}}$	$\large{\frac{J}{s}}$	$J-s^{-1}$	-
$P_h$	-	hydraulic power	$\large{\frac{lbm-ft^2}{sec}}$	$\large{\frac{kg-m^2}{s}}$	$kg-m^2-s^{-1}$	-
$n_h$	-	hydraulic pump efficiency	dimensionless	dimensionless	dimensionless	-
$r_h$	-	hydraulic radius	$ft$	$m$	$m$	-
$r_h$	-	hydraulic radius of a partially full pipe (less than half full)	$in$	$mm$	$mm$	-
$r_h$	-	hydraulic radius of a partially full pipe (more than half full)	$in$	$mm$	$mm$	-
$r_h$	-	hydraulic radius of a pipe	$in$	$mm$	$mm$	-
$r_h$	-	hydraulic radius of a rectangular channel	$ft$	$m$	$m$	-
$r_h$	-	hydraulic radius of a trapezoidal channel (equal side slopes)	$ft$	$m$	$m$	-
$r_h$	-	hydraulic radius of a rapezoidal channel (unequal side slopes)	$ft$	$m$	$m$	-
$r_h$	-	hydraulic radius of a triangular channel	$ft$	$m$	$m$	-
$S$	-	hydraulic slope	$ft$	$m$	$m$	-
$H$	-	hydrogen density	$\large{\frac{lbm}{ft^3}}$	$\large{\frac{kg}{m^3}}$	$kg-m^{-3}$	-
$H$	-	hydrogen gas	-	-	-	-
$HP$	-	hydrostatic pressure	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg- m^{-1}-s^{-2}$	-
$HDS$	-	hydrostatic stress	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg- m^{-1}-s^{-2}$	-
-	-	hydrostatic weighting	-	-	-	-
$\Delta \nu_{cs}$	\nu	hyperfine transition frequency of 133Cs	$Hz$	$Hz$	$s^{-1}$	$9\;192\;631\;770$ $Hz$
Symbol	Greek Symbol	Drfinition	English	Metric	SI	Value

Formula Symbols - H

Mathematics and Management Rules and Symbols

"H" Formula Symbols

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Formula Symbols - H

Mathematics and Management Rules and Symbols

"H" Formula Symbols

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