Formula Symbols - V

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

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Formula Symbols

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V

SymbolGreek SymbolDefinitionEnglishMetricSIValue
\(p_v\) - vacuum pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(\varepsilon_0\) varepsilon vacuum electric permittivity - \(\large{\frac{F}{m}}\) \(F - m^{-1}\) \(8.854\;187\;8128\;(13)\;x\;10^{-12}\) \(\large{\frac{F}{m}}\)
\(\mu_0\) mu vacuum magnetic permeability - \(\large{\frac{N}{A^2}}\)  \(N - A^{-2}\) \(1.256\;637\;0614\;x\;10^{-6}\) \(\large{\frac{N}{A^2}}\)
\(Va\) - Vadasz number dimensionless -
\(C_v\), \(\;K_v\) - valve flow coefficient Cv / Kv dimensionless -
\(C_v\), \(\;K_v\) - valve flow coefficient for liquid dimensionless -
\(Q\) - valve flow rate for liquid \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\) \(m^3 - s^{-1}\) -
\(P_1\) - valve inlet pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(P_2\) - valve outlet pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(\Delta P\) - valve pressure differential for liquid \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(F_o\) - valve style modifier dimensionless -
\(C_v\) - valve sizing coefficient - - - -
\(Re_v\)  - valve Reynolds number dimensionless -
- - Van der Waals equation - - - -
\(G_{vd}\) - vapor density of gas \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\) \(kg - m^{-3}\) -
\(p_v\) - vapor pressure \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(p_s\) - vapor pressure of the solution \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(p_s^0\) - vapor pressure of pure solution \(\large{\frac{lbf}{in^2}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(x\) - vapor quality dimensionless -
\(EHP_v\) - vehical engine horsepower \(\large{ \frac{lbf-ft}{sec} }\) \(\large{ \frac{J}{s} }\) \(J-s^{-1}\) -
\(v\) - velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(v_{cm}\)  - velocity center of mass \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(C_v\) - velocity coefficient - - - -
  - velocity differential \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(\nu\) nu velocity gradient \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(h_v\) - velocity head \(ft\) \(m\) \(m\) -
\(c_l\) - velocity of longitudinal waves \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(P\) - velocity power \(\large{\frac{lbf-ft}{sec}}\)  \(W\) \(kg-m^2-s^{-3}\)  -
\(c\) - velocity of sound \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(c_t\) - velocity of transverse waves - - - -
\(v_s\) - velocity of steam \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(v_w\) - velocity of water \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(\Delta v\)
- velocity differential \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(\nu\) nu velocity gradient \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\) \(m - s^{-1}\) -
\(VP\) - velocity pressure \(\large{\frac{in}{wg}}\) \(Pa\) \(kg- m^{-1}-s^{-2}\) -
\(P\), \(\;P_v\) - velocity power \(\large{\frac{lbf-ft}{sec}}\) \(W\) \(kg - m^2 - s^{-3}\)  -
\(p_{vc}\) - vena contracta \(in\) \(mm\) \(mm\) -
\(Q\) - venturi meter flow rate \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\)  \(m^3 - s^{-1}\) -
\(Q\) - venturi tube flow rate \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\)  \(m^3 - s^{-1}\)  -
\(y\) - vertical distance \(ft\) \(m\) \(m\) -
\(EHP\) - vertical engine horsepower \(\large{ \frac{lbf-ft}{sec} }\) \(\large{ \frac{J}{s} }\) \(J - s^{-1}\) -
\(y\) - vertical position \(ft\) \(m\) \(mm\) -
\(R\) - vertical reaction load at bearing point \(lbf\) \(N\)    \(kg - m - s^{-2}\) -
\(V\) - vertical shear force \(lbf\) \(N\)   \(kg - m - s^{-2}\)  -
\(v\) - vibrational - - - -
\(\eta\), \(\;\mu\) eta, mu viscosity \(\large{\frac{lbf - sec}{ft^2}}\) \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(\eta\) eta viscosity coefficient \(\large{\frac{lbf - sec}{ft^2}}\) \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(\Delta \eta\), \(\;\eta_d\) eta viscosity differential \(\large{\frac{lbf - sec}{ft^2}}\) \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(VI\) - viscosity index - - - -
\(\mu\) mu viscosity of a mixture \(\large{\frac{lbf-sec}{ft^2}}\)   \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(\mu_s\) mu viscosity of a slurry \(\large{\frac{lbf-sec}{ft^2}}\)   \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(\eta_s\), \(\;\mu_s\) eta, mu viscosity of a solution used \(\large{\frac{lbf - sec}{ft^2}}\) \(Pa-s\) \(kg - m^{-1} - s^{-1}\) -
\(\eta\) eta viscous force - - - -
\(C\) - viscous damping coefficient (linear) \(\large{\frac{lbf - sec}{ft}}\) \(\large{\frac{N-s}{m}}\)  \(N-s- m^{-1}\) -
\(C\) - viscous damping coefficient (quadratic) \(\large{\frac{lbf - sec^2}{ft^2}}\) \(\large{\frac{N-s^2}{m^2}}\)  \(N-s^2- m^{-2}\) -
\(e\) - void ratio dimensionless -
\(V\) - volt \(V\) \(\large{\frac{kg-m^2}{s^{3}-A}}\) \(kg - m^2 - s^{-3} - A^{-1}\)  -
\(V\) - voltage (electric) \(V\) \(\large{\frac{kg-m^2}{s^{3}-A}}\) \(kg - m^2 - s^{-3} - A^{-1}\)   -
\(VCR\) - voltage coefficient of resistance \(\large{\frac{V}{I}}\) \(\large{\Omega}\)  \(kg-m^2-s^{-3}-A^{-2}\) -
\(V_o\) - voltage diverter \(V\) \(\large{\frac{kg-m^2}{s^{3}-A}}\) \(kg - m^2 - s^{-3} - A^{-1}\)   -
\(VD\) - voltage drop \(V\) \(\large{\frac{kg-m^2}{s^{3}-A}}\) \(kg - m^2 - s^{-3} - A^{-1}\)   -
\(VR\) - voltage ratio dimensionless -
\(V\), \(\;\upsilon\) upsilon volume \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(V_a\) - volume of air \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(V_d\), \(\;\Delta V\) Delta volume differential \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(\phi\) phi volume fraction - - - -
\(M\), \(\;\vec{M}\) - volume magnetization \(\large{\frac{A}{ft}}\) \(\large{\frac{A}{m}}\)  \(A - m^{-1}\) -
\(V_s\) - volume of solid soil \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(\theta\) theta volume strain - - - -
\(V_t\) - volume total \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(V_v\) - volume of voids \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(V_w\) - volume of water \(ft^3\) or \(in^3\) \(m^3\) or \(mm^3\) \(m^3\) or \(mm^3\) -
\(K\) - volumetric air/fuel ratio dimensionless -
\(\beta\) beta volumetric coefficient of expansion \(\large{\frac{1}{R}}\) \(\large{\frac{1}{K}}\)  \(1 - K^{-1}\) -
\(Y\) - volumetric density \(\large{ \frac{lbm}{ft^3} }\) \(\large{ \frac{kg}{m^3} }\) \(kg - m^{-3}\) -
\(\eta_v\) eta volumetric efficiency dimensionless -
\(Q\), \(\;V \), \(\;\dot {V}\) - volumetric flow rate \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\) \(m^3 - s^{-1}\)  -
\(B\) - volumetric fraction dimensionless -
\(\Delta V\) - volumetric thermal expansion \(\large{ \frac{in^3}{in^3\;F} }\) \(\large{ \frac{mm^3}{mm^3-C} }\) \(mm^3 - mm^{-3} - C^{-1}\) -
\(\alpha_v\) alpha volumetric thermal expansion coefficient \(\large{ \frac{in^3}{in^3\;F} }\) \(\large{ \frac{mm^3}{mm^3-C} }\) \(mm^3 - mm^{-3} - C^{-1}\) -
\(\theta\) theta volumetric water content \(ft^3\) \(m^3\) \(m^3\) -
\(k\) - von Karman constant dimensionless constant  universal used 0.40 (between 0.35 and 0.42)
\(R_k\) - von Klitzing constant \(\Omega\) \(\Omega\) \(kg - m^2 - s^-3 - A^-2\) \(25\;812.807\;4434...\) \(\Omega\)
Symbol Greek Symbol Definition English Metric   Value

 

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