Formula Symbols - O

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

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O

SymbolGreek SymbolDefinitionEnglishMetricSIValue
\(\rho_o\) rho object density \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\) \(kg-m^{-3}\) -
\(ON\) - octane number dimensionless -
\(x\) - offset distance \(ft\) \(m\) \(m\) -
\(T\) - offset motion - - - -
\(R\) - ohm - - - -
\(Oh\) - Ohnesorge number dimensionless -
\(\Omega\) omega ohm - - - -
- - Ohm's law - - - -
\(1D\) - one-dimension - - - -
\(L\), \(\;l_i\) - orbital angular momentum - - - -
\(n\) - order of reflexion - - - -
\(K\) - orifice constant \(gpm-\sqrt{psi}\) \(\large{\frac{L}{s \sqrt{kPa}}}\) - -
\(l_o\) - origional length \(ft\) or \(m\) \(in\) or \(mm\) \(in\) or \(mm\) -
\(f_o\) - orthogonal force \(lbf\) \(N\) \(kg-m-s^{-2}\) -
\(\pi \) pi osmotic pressure \(\large{\frac{lbf}{ft^2}}\) \(Pa\) \(kg-m^{-1}-s^{-2}\) -
\(p_o\) - outlet pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg-m^{-1}-s^{-2}\) -
\(E_o\) - output energy \(lbf-ft\) \(J\) \(kg-m^2-s^{-2}\) -
\(W_o\) - output work \(lbf-ft\) \(J\) \(kg-m^2-s^{-2}\) -
\(OD\) - outside diameter \(in\) \(mm\) \(mm\) -
\(OD\) - outside diameter of pipe \(in\) \(mm\) \(mm\) -
\(U\) - overall coefficient of heat transfer - - - -
\(\eta_0\) eta overall efficiency dimensionless -
\(U\) - overall heat transfer coefficient \(\large{\frac{Btu}{hr-ft^2-F}}\)  \(\large{\frac{W}{m^2-K}}\) \(W-m^{-2}-K^{-1}\) -
Symbol Greek Symbol Definition English Metric   Value

 

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