Friday 11 March 2011

List symbols in HTML

I use this list for building my formulas in html on this site


F  = Newton Force  [N]

A  = Area on which the force acts  [m2]
A  = Wetted Area                  [m2

Q  = Discharge/ flow rate         [m3/s]

u  = Velocity                     [m/s]
v  = Mean velocity             [m/s]

V1  = Mean velocity before      [m/s]
V2  = Mean velocity after       [m/s]

m  = Weight                        [Kg]

g = Earths gravity= 9,81  [m/s2]

y   = Pressure Head  [m]


z   = Potential Head [m]

 u2
 —  = Velocity Head    [m]
2·g


D = Hydraulic Diameter = 4·R  [m]

R = Hydraulic Radius = D/4    [m]

u   = Kinematic viscosity       [m2/s]
u  water 20°C       = 1,00·10-6 [m2/s]


m = Absolute viscosity [kg/ms]
m  water 20°C  = 1,00·10-3 [kg/ms]

r = Density of liquid     [kg/m3]
r fresh water = 1000  [kg/m3]
r saltwater   = 1025  [kg/m3]

p = Pressure              [Pa=N/m2]


b  = Width orifice              [m]
h1 = Pressure at top orifice    [m]
h2 = Pressure at bottom orifice [m]

Cv = Velocity coefficient (0,97-0,99)   [1]
Cc = Contraction coefficient (0,61-0,66)[1]
h =  Pressure just before orifice       [m]

DH1-2 = Head losses        [m]
Sf = Slope hydraulic gradient caused by friction   [1]
ks = Surface roughness   [m]
hf = Frictional head loss   [m]
L  = Length                  [m]


1 comment:

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