Formula Symbols - L

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L

Symbol	Greek Symbol	Definition	US	Metric	Value
\(L\)	-	Lagrangian function	-	-	-
\(La\)	-	Laplace number	dimensionless	dimensionless	-
\(L\)	-	latent heat	\(Btu \;/\; lbm\)	\(J \;/\; kg\)	-
\(L\), \(\;L_s\)		latent heat of steam	\(Btu \;/\; lbm\)	\(J \;/\; kg\)	-
\(h_{fg}\)	-	latent heat of vaporization	\(Btu \;/\; lbm\)	\(J \;/\; kg\)	-
\(\delta '\)	delta	lateral deflection	\(deg\)	\(rad\)	-
\(\epsilon '\), \(\;\epsilon_t\)	epsilon	lateral strain (transversal strain)	\(ft\)	\(m\)	-
\(a\), \(\;L\), \(\;l\)	-	length	\(in \;or\; ft\)	\(mm \;or\; m\)	-
\(l_d\), \(\;\Delta l\)	delta	length differential	-	-	-
\(\Gamma\)	Gamma	level width	-	-	-
\(Le\)	-	Lewis number	dimensionless	dimensionless	-
\(C_l\)	-	lift coefficient	dimensionless	dimensionless	-
\(L\)	-	lift force	\(lb\)	\(N\)	-
\(C_L\)	-	lift number	dimensionless	dimensionless	-
\(c\)	-	light (vacuum)	\(ft\;/\;sec\)	\(m\;/\;s\)	-
\(\lambda_c\)	lambda	linear attenuation coefficient	-	-	-
\(\lambda\)	lambda	linear concentration	dimensionless	dimensionless	-
\(s\)	-	linear displacement	\(ft\)	\(m\)	-
\(\alpha_l\)	alpha	linear expansion coefficient	\(ft^3\)	\(m^3\)	-
\(p\)	-	linear momentum	\(lb-ft\;/\;sec\)	\(kg-m\;/\;s\)	-
\(p\)	-	linear momentum vector	\(lb-ft\;/\;sec\)	\(kg-m\;/\;s\)	-
\(R\), \(\;R_l\)	-	linear range	-	-	-
\(S\), \(\;S_l\)	-	linear stopping power	-	-	-
\(e\), \(\;\epsilon\)	epsilon	linear strain	-	-	-
\(a_t\)	-	linear tangential path	\(ft\)	\(m\)	-
\(\alpha\)	alpha	linear thermal expansion	\(in\)	\(mm\)	-
\(\alpha_l\)	alpha	linear thermal expansion coefficient	\(in\)	\(mm\)	-
\(F_f\)	-	liquid critical pressure ratio factor	dimensionless	dimensionless	-
\(T_i\)	-	liquid inlet temperature	\(^\circ F\)	\(C\)	-
\(F_l\)	-	liquid pressure recovery factor	dimensionless	dimensionless	-
\(T_o\)	-	liquid outlet temperature	\(^\circ F\)	\(C\)	-
\(SG_l\), \(\;G_f\)	-	liquid specific gravity	dimensionless	dimensionless	-
\(c_l\)	-	liquid specific heat	\(Btu\;/\;lb- ^\circ F\)	\(kJ\;/\;kg-K\)	-
\(LL\)	-	live load	-	-	-
\(L\)	-	live load for LRFD design	-	-	-
\(\gamma_L\)	gamma	live load factor in LRFD steel design	-	-	-
\(P\)	-	load	\(lbf\)	\(N\)	-
\(C_F\)	-	load duration factor for wood design	-	-	-
\(LRFD\)	-	load and resistance factor design	-	-	-
\(\omega\)	omega	load per unit area	\(lbf\;/\;ft^2\)	\(N\;/\;m^2\)	-
\(\omega\)	omega	load per unit length	\(lbf\;/\;ft\)	\(N\;/\;m\)	-
\(w\)	-	load per unit length on a beam	\(lb\;/\;ft\)	\(N\;/\;m\)	-
\(K\)	-	loading factor	-	-	-
\(\chi\)	chi	Lockhart-Martinelli parameter	dimensionless	dimensionless	-
\(x\), \(\;y\)	-	location	\(in\)	\(m\)	-
\(\Lambda\)	Lambda	logarithmic decrement	-	-	-
\(LMTD\)	-	logarithmic mean temperature differential	-	-	-
\(s\)	-	long range order parameter	-	-	-
\(\delta\)	delta	longitudinal deflection	-	-	-
\(\epsilon\), \(\;\epsilon_a\)	epsilon	longitudinal strain (axial strain)	\(ft\)	\(m\)	-
\(\sigma_l\)	sigma	longitudinal stress	\(ft\)	\(m\)	-
\(L\)	-	Lorenz coefficient	-	-	-
\(n_o\)	-	Loschmidt constant	constant	constant	\(2.686\;7805\;x\;10^{25}\;m^{-3}\)
\(K\)	-	loss coefficient	dimensionless	dimensionless	-
\(F_l\)	-	loss factor	-	-	-
\(L_n\)	-	loudness level	-	-	-
\(h\), \(\;k\), \(\;l\)	-	Love numbers	dimensionless	dimensionless	-
\(LHV\)	-	lower heating value	\(Btu \;/\; lbm\)	\(kJ \;/\; kg\)	-
\(LRFD\)	-	load and resistance factor design	-	-	-
\(L\)	-	luminosity	-	\(W\)	-
\(K_{cd}\)	-	luminous efficacy	constant	constant	-
\(S\)	-	Lundquist number	dimensionless	dimensionless	-
Symbol	Greek Symbol	Definition	US	Metric	Value