Formula Symbols - L

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

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SymbolGreek SymbolDefinitionUSMetric
\(L\) - Lagrangian function - -
\(La\) - Laplace number dimensionless number dimensionless number
\(L\) - latent heat - -
\(L_s\)   latent heat of steam - -
\(h_{fg}\) - latent heat of vaporization \(Btu \;/\; lbm\) \(J \;/\; kg\)
\(\delta\;'\) delta lateral deflection \(deg\) \(rad\)
\(\epsilon\;'\) epsilon lateral strain - -
\(a \;or\; L \;or\; l\) - length \(in \;or\; ft\) \(mm \;or\; m\)
\(l_d \;or\; \Delta l\) delta length differential - -
\(\Gamma\) Gamma level width - -
\(Le\) - Lewis number dimensionless number dimensionless number
\(C_l\) - lift coefficient dimensionless number dimensionless number
\(L\) - lift force \(lb\) \(N\)
\(C_L\) - lift number dimensionless number dimensionless number
\(c\) - light (vacuum) \(ft\;/\;sec\) \(m\;/\;s\)
\(\lambda_c\) lambda linear attenuation coefficient - -
\(\alpha_l\) alpha linear expansion coefficient - -
\(p\) - linear momentum \(lb-ft\;/\;sec\) \(kg-m\;/\;s\)
\(R \;or\; R_l\) - linear range - -
\(S \;or\; S_l\) - linear stopping power - -
\(e \;or\; \epsilon\) epsilon linear strain - -
\(a_t\) - linear tangential path \(ft\) \(m\)
\(\alpha_l\) alpha linear thermal expansion coefficient \( in\) -
\(LL\) - 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 number dimensionless number
\(x \;or\; y\) - location \(in\) \(m\)
\(\Lambda\) Lambda logarithmic decrement - -
\(LMTD\) - logarithmic mean temperature differential - -
\(s\) - long range order parameter - -
\(\delta\) delta longitudinal deflection - -
\(\epsilon\) epsilon longitudinal strain - -
\(L\) - Lorenz coefficient - -
\(K\) - loss coefficient - -
\(F_l\) - loss factor - -
\(L_n\) - loudness level - -
\(LHV\) - lower heating value \(Btu \;/\; lbm\) \(kJ \;/\; kg\)
\(LRFD\) - load and resistance factor design - -
\(L\) - luminosity - \(W\)