Formula Symbols - C

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

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C

SymbolGreek SymbolDefinitionEnglishMetricSIValue
\(C\) - capacitance \(K\) \(\large{\frac{s^4-A^2}{kg-m^2}}\) s^4 - A^2 - kg^-1 - m^-2   -
\(Q\), \(\;V\) - capacity \(in^3\) \(L\) \(L\)   -
\(Ca\) - Capillary number dimensionless  -
\(n_{max}\) - Carnot efficiency dimensionless -
\(F\) - casing quality factor dimensionless -
\(A\), \(\;L_d\) - characteristic diffusion length - - -  -
\(Ca\) - Cauchy number dimensionless  -
\(K\) - cavitation - - -  -
\(K_c\) - cavitation index - - -  -
\(Ca\), \(\;\sigma\) sigma cavitation number dimensionless  -
\(C\) - celsius - \(C\) \(x+273.15\;K\) -
\(c\) - cement content of concrete \(\large{\frac{lbm}{yd^3}}\) \(\large{\frac{kg}{m^3}}\) \(kg - m^{-3}\) -
\(Q_c\) - cement quantity - - - -
\(r_c\) - cement ratio dimensionless -
\(x_{cm}\) - center of mass \(ft\) \(m\) \(m\) -
\(Ce\) - centrifuge number dimensionless  -
\(F_c\) - centrifugal force \(lbf\) \(N\)  \(kg - m - s^{-2}\) -
\(a_c\) - centripetal acceleration \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\)  -
\(F_c\) - centripetal force \(lbf\) \(N\)  \(kg - m - s^{-2}\)  -
\(Q\) - Chandrasekhar number dimensionless  -
\(\;\Delta\), \(\;\delta\), \(\;\partial\) Delta, delta, partial change - - -  -
\(\rho\) rho change density - - -  -
\(\rho\) rho change density of electrons - - -  -
\(\Delta L\) - change in angular momentum  \(\large{\frac{lbm-ft^2}{sec}}\)  \(\large{\frac{kg-m^2}{s}}\)  \(kg - m^2 - s^{-1}\)  -
\(\Delta \omega\) omega change in angular velocity \(\large{\frac{rad}{sec}}\) \(\large{\frac{rad}{s}}\) \(rad - s^{-1}\)  -
\(\Delta v\) - change in fluid velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\)  -
\(l_c\) - change in length \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(z\) - change number of an ion - - -  -
\(\Omega\) Omega characteristic angular velocity - - -  -
\(\Delta x\) Delta characteristic difference of mole fraction - - -  -
\(f\) - characteristic frequency - - -  -
\(Z_0\) mu characteristic impedance of vacuum \(\Omega\) \(\Omega\) kg - m^2 - s^-3 - A^-2  \(376.730\;313\;668\) \(\Omega\)
\(l\), \(\;l_c\) - characteristic length \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(r\) - characteristic linear dimension perpendicular to the rotation axis \(in\) \(mm\) \(mm\) -
\(v\) - characteristic speed \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(\Theta\) Theta characteristic temperature - - - -
\(\Delta T\) Delta characteristic temperature difference - - - -
\(t_c\)   characteristic time - - - -
\(U\) - characteristic velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(q\) - charge of particle - - - -
- - Charles' law - - - -
\(C\) - Chezy coefficient dimensionless -
\(Ch\) - Chezy formula \(\large{\frac{ft^3}{min}}\) \(\large{\frac{m^3}{s}}\) \(m^3 - s^{-1}\) -
\(c\) - chord length \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\) -
\(\omega\) omega circular frequency - - - -
\(\Gamma \) Gamma circulation - - - -
\(v_c\) - circular velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\)  -
\(C\) - circumference \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(r_e\) - classical electron radius \(ft\) \(m\) \(m\) \(2.817\;940\;3262\;(13)\;x\;10^{-15}\) \(m\)
- - Clausius-Clapeyron equation - - - -
\(c\) - clearance \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(d_3\) - clearance length \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\) -
\(Q_{co}\) - coarse quantity (gravel & rock) - - - -
\(r_{co}\) - coarse ratio (gravel & rock) - - - -
\(C\) - coefficient dimensionless  -
\(\gamma\) gamma coefficient of area thermal expansion \(\large{ \frac{in^2}{in^2-F} }\) \(\large{ \frac{mm^2}{mm^2-C} }\)  \(mm - mm^{-1} - C^{-1}\)  -
\(K_c\) - coefficient of constant cavitation dimensionless  -
\(\mu\), \(\;C_d\) mu coefficient of discharge - - -  -
\(f\) - coefficient of friction dimensionless  -
\(\alpha_t\) alpha coefficient of linear thermal expansion \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(e\) - coefficient of restitution - - -  -
\(a\) - coefficient of rolling resistance \(ft \) or \(in\) \(m\) or \(mm\) \(m\) or \(mm\)  -
\(\alpha\), \(\;\alpha_c\) alpha coefficient of thermal expansion \(\large{ \frac{in}{in-F} }\) \(\large{ \frac{mm}{mm-C} }\) \(mm - mm^{-1} - C^{-1}\) -
\(\eta\) eta coeficient of viscosity - - -  -
\(\alpha_v\) alpha coefficient of volumetric thermal expansion \(ft^3\) \(m^3\) \(m^3\)  -
\(\xi\) xi coherence depth - - -  -
\(Coh\) - cohesion number dimensionless  -
\(v_c\) - collision frequency - - -  -
 -  - Colburn J factors dimensionless  -
- - Colebrook-White equation - - - -
\(\phi_B\) phi compound machines efficiency dimensionless -
\(k_e\) - Coulmbo's constant \(\large{\frac{lbf-ft^2}{F^2}}\) \(\large{\frac{N-m^2}{C^2}}\) \(N - m^{2} - C^{-2}\) \(8.988\;x\;10^9\) \(\large{\frac{N-m^2}{C^2}}\)
\(F\) - Coulomb's law \(lbf\) \(N\)  \(kg - m - s^{-2}\) -
\(k_e\) - Coulomb's Wave Constant - - - -
\(\sigma\) sigma column buckling stress \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N - mm^{-2}\) -
- - combined gas law - - - -
\(CCV\) - combustion chamber volume \(in^3\) \(cc^3\) \(cc^3\)  -
\(\beta\) beta compressibility dimensionless  -
\(Z\) - compressibility factor dimensionless  -
\(Z_i\) - compressibility factor at inlet - - -  -
\(Z_o\) - compressibility factor at outlet - - -  -
\(K\) - compression \(in\) \(mm\) \(mm\)  -
\(CCV\) - compression chanber volume \(in^3\) \(cc^3\) \(cc^3\)  -
\(CR\) - compression ratio dimensionless  -
\(CS\) - compressive strength \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N - mm^{-2}\) -
\(\lambda_c\) lambda Compton wavelength - - -  -
\(CFD\) - computational fluid dynamics - - -  -
\(C\) - concentration \(ppm\) \(\large{\frac{mg}{L}}\) \(mg - L^{-1}\)   -
\(C\) - concentration of hydrocarbon in air - - - -
\(f_cm\) - concrete mean compressive cylinder strength \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(f_cm28\) - concrete mean compressive cylinder strength at 28 days \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(f_cmt\) - concrete mean compressive cylinder strength at age t \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(f_cmtc\) - concrete mean compressive cylinder strength when drying starts at age t_c \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(f_cmto\) - concrete mean compressive cylinder strength when loading starts at age t_o \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(f_{c}{'}\) - concrete specific cylinder strength at 28 days \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(V\) - concrete volume \(ft^3\) \(m^3\) \(m^3\) -
\(m_c\) - condensate load from heating air \(lbm\) \(kg\) \(kg\)  -
\(m_c\) - condensate load from heating liquid batch \(lbm\) \(kg\) \(kg\) -
\(m_c\) - condensate load from heating liquid continuous \(lbm\) \(kg\) \(kg\) -
\(d\) - condensate pipe sizing \(in\) \(mm\) \(mm\)  
\(G\) - conductance \(S\) \(S\) s^3 - A^2 - kg^-1 - m^-2   -
\(G_0\) = \(\frac{2\;e^2}{h}\) - conductance quantum \(S\) \(S\) s^3 - A^2 - kg^-1 - m^-2  \(7.748\;091\;729...\;x\;10^{-5}\) \(S\)
\(\gamma\), \(\;\sigma\) gamma, sigma conductivity - \(\large{\frac{S}{m}}\) \(S - m^{-1}\)  -
\(c\) - consentration - - -  -
\(k\) - constant - - -  -
\(a_c\) - constant acceleration \(\large{\frac{ft}{sec^2}}\) \(\large{\frac{m}{s^2}}\) \(m - s^{-2}\)  -
\(\omega_f\) omega constant angular acceleration \(\large{\frac{rad}{sec}}\)  \(\large{\frac{rad}{s}}\) \(rad - s^{-1}\)  -
\(c_p\), \(\;p\) - constant pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\)  -
\(C\) - constant used in space mechanics \(\large{\frac{1}{ft}}\)  \(\large{\frac{1}{m}}\)  \(1 - m^{-1}\) -
\(v\) - constant volume \(ft^3 \) or \(in^3\) \(m^3 \) or \(mm^3\) \(m^3 \) or \(mm^3\)  -
\(\beta \) beta contact angle \(deg\) \(rad\) \(rad\)  -
\(A_1\) - continuity equation for area \(in^2\)  \(mm^2\)  \(mm^2\) -
\(\rho_1\) rho continuity equation for density \(\large{\frac{lbm}{ft^3}}\)  \(\large{\frac{kg}{m^3}}\)   \(kg - m^{-3}\) -
- - continuity equation for mass - - - -
\(v_1\) - continuity equation for velocity \(\large{\frac{ft}{sec}}\)  \(\large{\frac{m}{s}}\)  \(m - s^{-1}\) -
\(C_v\) - control valve - - -  -
\(h\), \(\;h_c\) - convective heat transfer coefficient \(\large{\frac{Btu}{hr-ft^2-F}}\)  \(\large{\frac{W}{m^2-K}}\) \(W - m^{-2} - K^{-1}\)  -
\(k\) - conversion factor of the unit system - - -  -
\(k\) - conveyance - - - -
\(T_c\) - cooler temperature \(F\) \(C\) \(x+273.15\;K\)  -
\(CCD\) - cooling degree days \(F\) \(C\) \(x+273.15\;K\)  -
\(CLF\) - cooling load factor - - -  -
\(CLTD\) - cooling load temperature difference \(F\) \( C\) \(x+273.15\;K\)  -
\(f\) - Coriolis frequency \(\large{\frac{1}{sec}}\) \(\large{\frac{1}{s}}\) \(1 - s^{-1}\)  -
\(C\), \(\;\alpha\), \(\;K\) alpha correction factor dimensionless  -
- - correction for the intermolecular forces dimensionless -
\(C\) - corrosion allowance \(in\) \(cm\) \(cm\)  -
\(C\) - cost - - -  -
\(k\), \(\;k_e\) - Coulomb's constant \(\large{\frac{lbf-ft^2}{F^2}}\) \(\large{\frac{N-m^2}{C^2}}\) \(N - m^{2} - C^{-2}\) \(8.987\;551\;7923\;(14)\;x\;10^9\) \(\large{\frac{N-m^2}{C^2}}\)
\(F\) - Coulomb's law - - -  -
\(k\), \(\;k_e\) - Coulmbo's wave constant constant -
\(Co\) - Courant Number dimensionless  -
\(Co\) - Cowling number dimensionless  -
\(B\) - crack coefficient \(\large{\frac{ft^3}{ft-hr}}\) \(\large{\frac{m^3}{m-hr}}\) \(m^3 - hr^{-1}\)  -
\(\epsilon\) epsilon creep - - -  -
\(p_c \) - critical pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\)  -
\(R_{cp}\) - critical pressure ratio dimensionless -
\(R_{cpf}\) - critical pressure ratio factor dimensionless  -
\(T_c \) - critical temperature \( F\) \(C\) \(x+273.15\;K\)  -
\(\sigma\) sigma cross-section \(in^2\) \(mm^2\) \(mm^2\)  -
\(A_f\) - cross-section area of flange \(in^2\) \(mm^2\) \(mm^2\)  -
\(A_g\) - cross-section area of grout \(in^2\) \(mm^2\) \(mm^2\)  -
\(A_w\) - cross-section area of web \(in^2\) \(mm^2\) \(mm^2\)  -
\(\alpha_v\), \(\;\gamma\) alpha, gamma cubic expansion coefficient - - -  -
\(CFM\) - cubic feet per minute   \(\large{\frac{ft^3}{min}}\)   \(\large{\frac{m^3}{min}}\) \(m^3 - min^{-1}\)  -
\(CID\) - cubic inch displacement \(in^3\) \(mm^3\) \(mm^3\)  -
\(Q\) - curb gutter flow rate \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\) \(m^3 - s^{-1}\) -
\(T_c\) - Curie temperature - - -  -
\(I\) - current (electric) \(I\) \(\large{\frac{C}{s}}\) \(C - s^-1\)  -
\(J\) - current density - \(\large{\frac{A}{m^2}}\) \(A - m^-2\)  
             
\(j\) - current density of electrons  - - -  -
\(I\) - current in the wire \(I\) \(\large{\frac{C}{s}}\) \(C - s^-1\) -
\(I\) - current intensity flowing in the cable \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(v\) - cutting speed \(\large{\frac{ft}{min}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\)  -
\(\sigma\) sigma cylinder axial stress \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N - mm^{-2}\) -
\(\sigma_h\) sigma cylinder hoop stress \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N - mm^{-2}\) -
Symbol Greek Symbol Definition English Metric   Value

 

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