Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- en:grundlagenhandbuch:symbole_und_formelzeichen:griechische_symbole [2025/06/26 12:16] – deppe2
+++ en:grundlagenhandbuch:symbole_und_formelzeichen:griechische_symbole [2026/01/28 11:18] (aktuell) – gelöscht deppe2
@@ Zeile 1: / Zeile 1: @@
-====== Greek Symbols ======
-===== Greek Symbols =====
-^ Symbol ^ Meaning ^
-| $\alpha$ | Staggering angle of the kneading discs |
-| $\beta$ | Temperature shift factor (Arrhenius law) |
-| $\dot{\gamma}$ | Shear rate |
-| $\dot{\gamma}_{min}$ | Minimum shear rate |
-| $\dot{\gamma}_{max}$ | Maximum shear rate |
-| $\overline{\delta}$ | Average thickness of the melt film |
-| $d$ | Thickness of the melt film |
-| $\overline{\delta_0}$ | Average initial thickness of the melt film |
-| $\delta_0$ | Initial thickness of the melt film |
-| $\varepsilon$ | Accuracy |
-| $z$ | Dimensionless z-coordinate |
-| $\eta$ | Melt viscosity |
-| $\overline{\eta}$ | Average effectivity |
-| $\eta_{Ge}$ | Effectivity of the gear box |
-| $\eta_{Mo}$ | Effectivity of the motor |
-| $\Theta$ | Polar coordinates |
-| $\overline{\Theta}$ | Average dimensionless residence time ($\overline{\Theta} = 1$) |
-| $\Theta$ | Dimensionless residence time ($\Theta = t / \overline{t}$) |
-| $\Theta$ | Dimensionless temperature |
-| $\Theta_0$ | Initial temperature |
-| $\Theta_1$ | Minimum dimensionless residence time ($\Theta_1 = t_1 / \overline{t}$) |
-| $\Theta_B$ | Dimensionless width of the residence time distribution |
-| $\Theta_S$ | Self cleaning number |
-| $\lambda_0$ | Thermal conductivity at $T_0$ (melt regime) |
-| $\lambda_1$ | Slope of the linearized thermal conductivity (melt regime) |
-| $\lambda$ | Thermal conductivity |
-| $\xi$ | Dimensionless coordinate in y-direction |
-| $\pi_{0,1}$ | Dimensionless number |
-| $\pi_{geo}$ | Dimensionless geometrical number |
-| $\pi_p$ | Dimensionless pressure gradient |
-| $\pi_{pKanal}$ | Dimensionless pressure gradient in the channel |
-| $\pi_{px}$ | Dimensionless pressure gradient in x direction |
-| $\pi_{pSpalt}$ | Dimensionless pressure gradient in the radial clearance |
-| $\pi_{pz}$ | Dimensionless pressure gradient in x direction |
-| $\pi_{p,ges}$ | Dimensionless overall pressure gradient |
-| $\pi_{p,Ele}$ | Dimensionless pressure gradient in a pair of elements |
-| $\pi_{p,ei}$ | Dimensionless pressure gradient in the intermeshing region |
-| $\pi_{p,fr}$ | Dimensionless pressure gradient in the free channels |
-| $\pi^{\dot{V}}$ | Dimensionless flow rate |
-| $\pi^{\dot{m}}$ | Dimensionless mass flow rate |
-| $\pi^{\dot{V}}_{Kanal}$ | Dimensionless flow rate in the screw channel |
-| $\pi^{\dot{V}}_x$ | Dimensionless flow rate in x-direction |
-| $\pi^{\dot{V}}_{Spalt}$ | Dimensionless flow rate in the radial clearance |
-| $\pi^{\dot{V}}_z$ | Dimensionless flow rate in z-direction |
-| $\pi^{\dot{V}}_{Ele}$ | Dimensionless flow rate in a pair of screw elements |
-| $\pi^{\dot{V}}_{ei}$ | Dimensionless flow rate in the intermeshing region |
-| $\pi^{\dot{V}}_{fr}$ | Dimensionless flow rate in the free channels |
-| $\rho_0$ | Density at reference temperature (melt regime) |
-| $\rho_m$ | Slope of the density at reference temperature (melt regime) |
-| $\rho, \rho_S$ | Density, bulk density |
-| $\rho_{Schütti}$ | Bulk density at the element i |
-| $\sigma^2$ | Variance of the residence time distribution |
-| $\sigma_M$ | Axial mixing coefficient |
-| $\overline{\sigma_M}$ | Average axial mixing coefficient |
-| $\tau$ | Shear stress |
-| $\overline{\tau}$ | Average shear stress |
-| $\overline{\tau_W}$ | Average wall shear stress |
-| $\tau_{0x}$ | Wall shear stress in x-direction |
-| $\tau_{0z}$ | Wall shear stress in z-direction |
-| $\tau_{yi,j}$ | Shear stress |
-| $\Phi,\phi$ | Flight angle |
-| $\Psi$ | Standardised melt film thickness |
-| $\omega$ | Angular velocity |
-| $\Omega$ | Intermeshing angle |
-| $\phi_{1A},\phi_{2A}, \phi_{1F},\phi_{2F}, \phi_1,\phi_2, \phi_{1z},\phi_{2z}$ | Constants for the linearized throughput equation |
-| $\varphi$ | Lead angle |
-| $\varphi_S$ | Lead angle at the outer screw diameter |
-| $\varphi_{S,Kn}$ | Characteristic lead angle at the outer diameter of kneading blocks |
-| $\overline{\Psi}$ | Standardised thickness of the melt film |
-| $\overline{\Psi_S}$ | To $\delta_0$ standardized radial clearance |
-| $\Psi_S$ | To $\delta_0$ standardized radial clearance |
-| $\Psi_{1,2}$ | Standardised thickness of the melt film |