L, characteristic length

L Characteristic length m R.. Infinite shear viscosity (Bingham plastics) Pa s... 

Da Second Damkohler number K l2 ID K = first-order reaction rate constant l = characteristic length D = diffusion coefficient... 

Re Reynolds number Q)/2/V co = radial velocity v = kinematic viscosity l = characteristic length... 

Froude number A/Fr /VFr = V2/gL L= characteristic length (Inertial/gravity) forces Free surface flows... 

In this relatively simple random walk model an ion (e.g., a cation) can move freely between two adjacent active centres on an electrode (e.g., cathode) with an equal probability A. The centres are separated by L characteristic length units. When the ion arrives at one of the centres, it will react (e.g., undergoes a cathodic reaction) and the random walk is terminated. The centres are, therefore absorbing states. For the sake of illustration, L = 4 is postulated, i.e., Si and s5 are the absorbing states, if 1 and 5 denote the positions of the active centres on the surface, and s2, s3, and s4 are intermediate states, or ion positions, LIA characteristic units apart. The transitional probabilities (n) = Pr[i-, —>, Sj in n steps] must add up to unity, but their individual values can be any number on the [0, 1] domain. 

L characteristic length, chosen separately for each problem m, ft... 

L Characteristic length or length scale associated with fluid physical calculations... 

Minimum hold-up as a percentage of the drum volume, -i Slurry pressure gradient, Pa/m i, Fluid pressure gradient, Pa/m L Characteristic length, m... 

L = characteristic length in centimeters or inches of dissipater surface with area factor... 

L = characteristic length of surface in direction of flow in centimeters or inches... 

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