Formula Symbols - T
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T
| Symbol | Greek Symbol | Definition | US | Metric | Value |
|---|---|---|---|---|---|
| \(a_t\) | - | tangential acceleration | \(ft\;/\;sec^2\) | \(m\;/\;s^2\) | - |
| \(F_t\) | - | tangential force | \(ft\;/\;sec^2\) | \(m\;/\;s^2\) | - |
| \(v_t\) | - | tangential velocity | \(deg\;/\;sec\) | \(rad\;/\;s\) | - |
| \(Ta\) | - | Taylor number | dimensionless | dimensionless | - |
| \(T\) | - | temperature | \(^\circ F\) | \(C\) | - |
| \(\alpha\), \(\;\beta\) | alpha, beta | temperature coefficient | \(1 \;/\; ^\circ R\) | \(1 \;/\; K\) | - |
| \(y\) | - | temperature derating factor | - | - | - |
| \(T_d\), \(\;\Delta T\), \(\;TD\) | Delta | temperature differential | \(^\circ F\) | \(C\) | - |
| \(\nabla T\) | nabla | temperature gradient | - | \(Km^{-1}\) | - |
| \(T\) | - | temperature of an ideal gas | \(^\circ F\) | \(C\) | - |
| \(\large{ \partial T }\) | partial | temperature rate of change | - | - | - |
| \(V_{temp}\) | - | temporary specific volume vatiable | \(ft^3\;/\;lbm\) | \(m^3\;/\;kg\) | - |
| \(T\) | - | tensile force | \(lb \;or\; kip\) | \(N \;or\; kN\) | - |
| \(T_{sat}\) | - | temperature saturation point | \(^\circ F\) | \(C\) | - |
| \(s\) | - | tensile strength | \(psi\) | \(kg\;/\;cm^2\) | - |
| \( f_t \) | - | tensile strength of concrete | \(lb\;/\;in^2 \;or\; psi\) | \(Pa\) | - |
| \(\sigma\) | sigma | tensile stress | - | - | - |
| \(T\) | - | tension | \(lbf\) | \(N\) | - |
| \(\sigma\) | sigma | tension coefficient | - | - | - |
| \(F_t \) | - | tension force | - | - | - |
| \(v_t\) | - | terminal velocity | - | - | - |
| \(C_t\) | - | thermal capacitance | \(Btu\;/\; ^\circ F\) | \(J\;/\; K\) | - |
| \(C\) | - | thermal conductance of air space | \(Btu\;/\;ft^2-hr - ^\circ F\) | \(W\;/\;m^2 - C\) | - |
| \(Q\) | - | thermal conduction | - | - | - |
| \(p\) | - | thermal conduction rate | - | - | - |
| \(K\), \(\;k\) | - | thermal conductivity | \(Btu\;/\;hr-ft^2- ^\circ F\) | \(W\;/\;m^2 - K\) | - |
| \(\lambda\) | lambda | thermal conductivity coefficient | \(Btu-ft\;/\;hr-ft^2-^\circ F\) | \(W\;/\;m - C\) | - |
| \(k_t\) | - | thermal conductivity constant | \(Btu\;/\;hr-ft^2- ^\circ F\) | \(W\;/\;m^2 - K\) | - |
| \(\lambda_{ik}\) | lambda | thermal conductivity tensor | - | - | - |
| \(h_c\) | - | thermal contact conductance coefficient | - | - | - |
| \(p\) | - | thermal current | - | - | - |
| \(D_{td}\) | - | thermal diffusion coefficient | - | - | - |
| \(\alpha_t\) | alpha | thermal diffusion factor | - | - | - |
| \(k_t\) | - | thermal diffusion ratio | - | - | - |
| \(\alpha\) | alpha | thermal diffusivity | \(ft^2\;/\;sec\) | \(m^2 \;/\;s\) | - |
| \(T\), \(\;\eta_{th}\) | eta | thermal efficency | - | - | - |
| \(Q\) | - | thermal energy | \(Btu\) | \(W\) | - |
| \(\alpha\), \(\;\alpha_c\) | alpha | thermal expansion coefficient | \(1 \;/\; ^\circ K\) | \(1 \;/\; ^\circ K\) | - |
| \(\alpha\) | alpha | thermal expansivity | - | - | - |
| \(l\) | - | thermal intensity | - | \(Wm^{-2}\) | - |
| \(p\) | - | thermal power transfer | - | - | - |
| \(R\), \(\;R_t\) | - | thermal resistance | \(hr-^\circ F\;/\;Btu\) | \(K\;/\;W\) | - |
| \(\epsilon_t\) | epsilon | thermal strain | - | - | - |
| \(\sigma_T\) | sigma | thermal stress | - | - | - |
| \(\tau\) | tau | thermal time constant | \(hr\) | \(s\) | - |
| \(T\), \(\;\tau\) | tau | thermodynamic temperature | - | - | - |
| \(d\), \(\;t\), \(\;\delta\) | delta | thickness | \( in \;or\; ft\) | \(mm \;or\; m\) | - |
| \(t_f\) | - | thickness of the flange of a steel beam cross-section | \(in\) | \(mm\) | - |
| \(t_w\) | - | thickness of the web of a steel beam cross-section | \(in\) | \(mm\) | - |
| \(\mu\) | mu | Thomson coefficient | - | - | - |
| \(\sigma_e\) | sigma | Thomson cross-section | constant | constant | \(6.652\;458\;7321\;x\;10^{-29}\;m^2\) |
| \(T\) | - | throat size of a weld | \(in\) | \(mm\) | - |
| \(F\) | - | thrust | \(lbf\) | \(N\) | - |
| \(F\) | - | thrust force | \(lbf\) | \(N\) | - |
| \( t\) | - | time | \(sec\) | \(s\) | - |
| \(\tau\) | tau | time constant | \(sec\) | \(s\) | - |
| \(dt\), \(\;\Delta t\) | Delta | time differential | \(sec\) | \(s\) | - |
| \(t_f\) | - | time of flight | \(sec\) | \(s\) | - |
| \(\Delta t\) | Delta | time interval | \(sec\) | \(s\) | - |
| \(t_p\) | - | time of observation | \(sec\) | \(s\) | - |
| \(t_c\) | - | time of relaxation | \(sec\) | \(s\) | - |
| \(T\) | - | time scale | - | - | - |
| \(T\), \(\;\tau\) | tau | torque | \(lbf-ft\) | \(N-m\) | - |
| \(T_s\) | - | torque speed | \(lbf-ft \;/\; sec\) | \(N-m \;/\; s\) | - |
| \(T\) | - | torsion | \(lbf-ft \;/\; sec\) | \(N-m \;/\; s\) | - |
| \(K\) | Kappa | torsion coefficient | - | \(N-m\;/\;rad\) | - |
| \(J\) | - | torsional constant | \(deg\) | \(rad\) | - |
| \(K\) | - | tortional stiffness constant | - | - | - |
| \(k_r\) | - | torsional spring constant | \(lbf-ft\;/\;rad\) | \(N-m\;/\;rad\) | - |
| \(n\) | - | total | - | - | - |
| \(J\), \(\;j_i\) | - | total angular momentum | - | - | - |
| \(\omega_t\) | omega | total angular velocity | \(ft \;/\; sec\) | \(rad \;/\; s\) | - |
| \(P\) | - | total concentrated load | \(lb\) | \(N\) | - |
| \(h_d\) | total discharge head | \(ft\) | \(m\) | - | |
| \(TDH\) | - | total dissolved head | \(ft\) | \(m\) | - |
| \(TDS\) | - | total dissolved solids | \(ppm\) | \(mg\;/\;L\) | - |
| \(Q_n\) | - | total energy | \(Btu\) | \(kJ\) | - |
| \(h_t\) | - | total head | \(ft\) | \(m\) | - |
| \(q_t\) | total heat | \(Btu\) | \(kJ\) | - | |
| \(W\) | - | total load from a uniform distribution | \(lb\) | \(N\) | - |
| \(p_t\) | - | total pressure | \(in\; wg\) | \(Pa\) | - |
| \(V\) | - | total shear force | - | ||
| \(T_s\) | - | total stagnation temperature | \(^\circ F\) | \(C\) | - |
| \(U\) | - | total strain energy | - | - | - |
| \(h_s\) | total suction head | \(ft\) | \(m\) | - | |
| \(T\) | - | total term | - | - | - |
| \(t_t\) | - | total time | \(sec\) | \(s\) | - |
| \(V_t\) | - | total velocity | \(ft \;/\; sec\) | \(m \;/\; s\) | - |
| \(V_t\) | - | total volume of soil | \(ft^3\) | \(m^3\) | - |
| \(W_t\) | - | total weight of soil | \(lbf\) | \(N\) | - |
| \( W_t\) | - | total work | \(lbf-ft\) | \(kW\) | - |
| \(\dot {t}\) | - | transfer rate | - | - | - |
| \(TU\) | - | transfer units | - | - | - |
| \(KE_t\) | - | translational kinetic energy | - | - | - |
| \(\gamma\) | gamma | transmissivity | - | - | - |
| \(T\), \(\;\tau\) | tau | transmittance | dimensionless | dimensionless | - |
| \(T\) | - | transmitted torque | \(lbf-ft\) | \(N-m\) | - |
| \(\tau\) | tau | transmission coefficient | - | - | - |
| \(\Delta x\) | Delta | transverse displacement | - | - | - |
| \(\epsilon_t\) | epsilon | transverse strain (laterial strain) | \(ft\) | \(m\) | - |
| \(T\) | - | travel | \(in\) | \(mm\) | - |
| \(\epsilon\) | epsilon | true strain | \(in\;/\;in\) | \(m\;/\;m\) | - |
| \(\sigma\) | sigma | true stress | \(lbf\;/\;in^2\) | \(MPa\) | - |
| \(Pr_t\) | - | Turbulent Prandtl number | dimensionless | dimensionless | - |
| \(2D\) | - | two-dimension | - | - | - |
| Symbol | Greek Symbol | Definition | US | Metric | Value |
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