| Symbol | Greek Symbol | Definition | US | Metric |
|---|
| \(v_t\) |
- |
tangential velocity |
\(rad/s\) |
\(rad/s\) |
| \(Ta\) |
- |
Taylor number |
dimensionless number |
dimensionless number |
| \( T\) |
- |
temperature |
\(^\circ F\) |
\(^\circ C\) |
| \(\Delta T\) |
delta |
temperature differential |
\(^\circ F\) |
\(^\circ C\) |
| \(T_d\) |
- |
temperature differential |
\(^\circ F\) |
\(^\circ C\) |
| \(T\) |
- |
tension |
\(lbf\) |
\(N\) |
| \(F_t\) |
- |
tension force |
- |
- |
| \(C_t\) |
- |
thermal capacitance |
\(Btu/^oF\) |
\(J/K\) |
| \( Q\) |
- |
thermal conduction |
- |
- |
| \( k\) |
- |
thermal conductivity |
\(Btu-ft/hr-ft^2-^\circ F\) |
\(W/m\cdot K\) |
| \(\lambda\) |
lambda |
thermal conductivity |
\(Btu-ft/hr-ft^2-^\circ F\) |
\(W/m\cdot K\) |
| \( k_t\) |
- |
thermal conductivity constant |
- |
- |
| \( \alpha\) |
alpha |
thermal diffusivity |
\(ft^2/sec\) |
\(m^2 /s\) |
| \( Q\) |
- |
thermal energy |
- |
- |
| \( \alpha\) |
alpha |
thermal expansion coefficient |
- |
\(K_{-1}\) |
| \(R_t\) |
- |
thermal resistance |
\(hr-^\circ F/Btu\) |
\(K/W\) |
| \(t\) |
- |
thickness |
\( in\;\) or\(\; ft\) |
\(m\) |
| \(F\) |
- |
thrust |
\(lbf\) |
\(N\) |
| \(F\) |
- |
thrust force |
\(lbf\) |
\(N\) |
| \( t\) |
- |
time |
\(hr\) |
\(s\) |
| \(\tau\) |
tau |
time constant |
\(m\) |
\(s\) |
| \(\Delta t\) |
delta |
time differential |
\(hr\) |
\(s\) |
| \(t_d\) |
- |
time differential |
\(hr\) |
\(s\) |
| \( T\) |
- |
torque |
\(in-lbf\) |
\(N\cdot m\) |
| \(Q\) |
- |
total heat |
\(Btu\) |
\(kJ\) |
| \(K\) |
Kappa |
torsion coefficient |
- |
\(N \cdot m/rad\) |
| \(TP\) |
- |
total pressure |
\(in\; wg\) |
\(Pa\) |
| \(TDH\) |
- |
total dissolved head |
\(ft\) |
\(m\) |
| \(TDS\) |
- |
total dissolved solids |
\(ppm\) |
\(mg/L\) |
| \( W_T\) |
- |
total work |
\(ft-lbf\) |
\(kW\) |
| \(\dot {t}\) |
- |
transfer rate |
- |
- |
| \(TU\) |
- |
transfer units |
- |
- |
| \(\tau\) |
tau |
transmittance |
- |
- |
| \(T\) |
- |
transmitted torque |
\(ft-lbf\) |
\(N \cdot m\) |
| \(Pr_t\) |
- |
Turbulent Prandtl number |
dimensionless number |
dimensionless number |
