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Technical Nomenclature Guide

The document provides a comprehensive nomenclature of various physical quantities and constants used in scientific contexts, including their symbols and units of measurement. It includes definitions for terms related to forces, energy, flow, and other physical properties. Additionally, it lists operators and Greek letters with their respective meanings and applications.

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Ahmad Aqeel
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15 views3 pages

Technical Nomenclature Guide

The document provides a comprehensive nomenclature of various physical quantities and constants used in scientific contexts, including their symbols and units of measurement. It includes definitions for terms related to forces, energy, flow, and other physical properties. Additionally, it lists operators and Greek letters with their respective meanings and applications.

Uploaded by

Ahmad Aqeel
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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334 Nomenclature

F quantity of misplaced particles


F free energy J
F force N
Fr Froud number
g gravity acceleration m s−2
g relative quantity of coarse particles —
h height, length m
h enthalpy J
H Hamaker constant J
i number of filter areas —
I imperfection —
l length m
L length m
k number of contact points —
k floc factor —
k Boltzmann constant J K−1
k correlation factor —
K kinetic parameter (gas pressure) —
m mass kg
M mass kg
MC moisture content —
n rotation speed s−1
n number of molecules —
Ne Newton number —
Q cumulative particle distribution —
Q volume flow m3 s−1
q specific volume flow m3 m−2 s−1
q frequency distribution m−1
p pressure Pa
p length m
p specific permeability (height related) m2
qv specific volume flow m3 m−2 s−1
Nomenclature 335

Qv volume flow m3 s−1


qm specific mass flow kg m−2 s−1
Qm mass flow kg s−1
r specific flow resistance (height related) m−2
r radius m
R radius m
R flow resistance m−1
R universal gas constant J mol−1 K−1
Re Reynolds number —
s length m
S saturation —
S entropy J K−1
t time s
T time s
T grade efficiency —
T absolute temperature K
TC dimensionless consolidation time —
v velocity m s−1
V Volume m3
w velocity m s−1
w specific energy N
W wash ratio —
W energy N
x particle diameter m
xav,SV true Sauter mean diameter (spheres) m
X amount of remaining impurities —
Y solid–liquid mass ratio —
z ionic valence
z length m kg−1

Operators

Δ difference operator
336 Nomenclature

Greek Letters

𝛼 specific resistance (mass related) m kg−1


𝛼 angle deg
𝛽 bridge filling angle deg
𝛾 angle deg
𝛾 surface tension N m−1
𝛿 wetting angle deg
𝜀 porosity —
𝜀0 absolute dielectric constant A s V−1 m−1
𝜀r relative dielectric constant —
𝜁 resistance coefficient —
𝜂 dynamic viscosity kg m−1 s−1
𝜂 efficiency factor —
𝜗 temperature ∘C
𝜅 concentration parameter —
𝜅 sharpness of cut —
𝜅 isentropic coefficient —
𝜆 kinetic parameter (centrifuge) —
𝜇 chemical potential J
𝜈 kinematical viscosity m2 s−1
𝜉 pore size distribution index —
𝜌 density kg m−3
𝜎t tensile strength N m−2
𝜎 standard deviation depends on the investigated
characteristic
𝜎 2
variance depends on the investigated
characteristic
𝜑 function —
𝜓 shape factor —
𝜓 electrical potential V
𝜔 angular velocity deg s−1

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