Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- en:grundlagenhandbuch:symbole_und_formelzeichen:lateinische_symbole [2026/01/28 11:15] – deppe2
+++ en:grundlagenhandbuch:symbole_und_formelzeichen:lateinische_symbole [2026/01/28 11:16] (aktuell) – gelöscht deppe2
@@ Zeile 1: / Zeile 1: @@
-====== Latin Symbols ======
-===== Latin Symbols =====
-^ Symbol ^ Meaning ^
-| $A,B,C$ | Coefficients of the Carreau Law |
-| $A$ | Overall cross section of the screw channel |
-| $A$ | Parameter for the temperature calculation in the melt film |
-| $A_{1-4}$ | Area |
-| $A_{1-4}$ | Variables for the calculation of the starting temperature profile |
-| $A_{\Delta}$ | Area of the triangular gap between kneading discs |
-| $A_f$ | Filled cross section within a screw channel |
-| $A_{fr}$ | Free cross section |
-| $A_{Pr}$ | Cross section of the screw profile |
-| $\overline{A_{zw}}$ | Average free surface in the intermeshing region |
-| $A_{Zyl}$ | Cross sectional area of the barrel |
-| $B$ | Variables for the calculation of the starting temperature profile |
-| $C$ | Machine constant |
-| $C_{x,z},C_{1,2,3}$ | Parameter for the calculation of the wall shear rate |
-| $D$ | Inner barrel diameter |
-| $D_F$ | Pressure screen value |
-| $D_N$ | Nominal screw diameter |
-| $D_S$ | Outer screw diameter |
-| $E$ | Extensive material data |
-| $F$ | Distribution function |
-| $F$ | Factor |
-| $F$ | Screen area |
-| $\Delta H$ | Difference of enthalpies |
-| $K$ | Coefficient of the power law |
-| $K_{Spalt}$ | Coefficient of the power law in the clearance |
-| $K_{Kanal}$ | Coefficient of the power law in the channel |
-| $K_{0T}$ | Consistency |
-| $L$ | Axial length, screw length |
-| $L_{Ele}$ | Axial length of the pair of screw elements |
-| $L_{ei}$ | Axial length of the intermeshing region |
-| $L_{fr}$ | Axial length of the free channel section |
-| $L_{Kn}$ | Overall axial length of the kneading blocks |
-| $L_R$ | Axial backpressure length |
-| $L_{Zw}$ | Axial length of the intermeshing area |
-| $M_{1,2}$ | Centerpoints |
-| $M_D$ | Torque |
-| $M_{D\%}$ | Proportional torque |
-| $P$ | Power |
-| $P_{1-3}$ | Power in the functional sections |
-| $P_{1-4}, P_{M1-M4}$ | Points |
-| $P_{Ma.,exp.}$ | Experimentally determined machine power |
-| $P_{Ve.,ber.}$ | Calculated power of the processing unit |
-| $S$ | Specific energy input |
-| $S_{Ma}$ | Overall specific energy input of the entire machine |
-| $S_{Ve}$ | Specific energy input in the processing unit |
-| $T$ | Temperature |
-| $T_{A,E}$ | Temperature at the beginning, end |
-| $T_B,T_0$ | Reference temperature |
-| $T_i$ | Mass temperature at the location i |
-| $T_F$ | Solids temperature |
-| $T_1$ | Reference temperature |
-| $T_{Fl}$ | Flow temperature |
-| $T_G$ | Glass transition temperature |
-| $T_K$ | Crystalline melt temperature |
-| $T_M, \overline{T}, T$ | Mass temperature |
-| $T_{M,0-5}$ | Mass temperature at the location 0-5 |
-| $T_S$ | Melt temperature |
-| $\overline{T_{Start}}$ | Average start temperature |
-| $T_Z$ | Barrel temperature |
-| $T_{Z,1-5}$ | Barrel temperature at the location 1-5 |
-| $U_{max}$ | Maximum wetted circumference ($s_R = 0$) |
-| $U_{min}$ | Minimum wetted circumference ($s_R = 0$) |
-| $\overline{U}$ | Average wetted circumference ($s_R = 0$) |
-| $U(\Theta^*)$ | Wetted circumference dependent on the screw position $\Theta^*$ ($s_R = 0$) |
-| $\dot{V}$ | Volumetric flow rate |
-| $\dot{V}_{ei}$ | Volumetric flow rate in the intermeshing region |
-| $\dot{V}_{fr1,2}$ | Free volume |
-| $\dot{V}_{Leck}$ | Volumetric leakage flow rate |
-| $\dot{V}_{Kanal}$ | Volumetric flow rate in the screw channel |
-| $\dot{V}_p$ | Pressure flow |
-| $V_{real}$ | Realistic free volume |
-| $V_{theor}$ | theoretical free volume |
-| $\dot{V}_S$ | Drag flow rate |
-| $\dot{V}_{Steg}$ | Leakage flow rate |
-| $\dot{V}_x$ | Volumetric flow rate in x - direction |
-| $\dot{V}_z$ | Volumetric flow rate in z – direction |
-| $V_{Zw}$ | Average volume of the intermeshing region |
-| $X$ | Concentration of the additive |
-| $X$ | Width of the solid bed |
-| $X$ | Ratio of element length and lead |
-| $X_{1,2}$ | Width of the solid bed |
-| $Y_1$ | Parameter of the pressure-throughput equation |
-| $Y_2$ | Parameter of the pressure-throughput equation |
-| $Z$ | Degree of Dispersion |
-| $Z_{ei}$ | Unwound length of the intermeshing region |
-| $Z_{fr}$ | Unwound length of the channel region |
-| $Z,z$ | Cartesian coordinate (channel direction), length |
-| $a$ | Centreline distance |
-| $a_{1,2}$ | Constants |
-| $a_T$ | Temperature shift factor |
-| $b$ | Channel width |
-| $\overline{b},b(f)$ | Average channel width |
-| $b$ | Width of the residence time distribution |
-| $b_i$ | Width of the screw channel in the section i |
-| $b_{max}$ | Maximum channel width |
-| $b_{SF}$ | Width of the melt film |
-| $b_{Steg}$ | Length of the flight |
-| $b_{SW}$ | Width of the melt pool |
-| $\overline{c}$ | Average concentration |
-| $c, c'$ | Constant for the melting calculation |
-| $\Delta c_0$ | Change in concentration |
-| $c_{1-4}$ | Parameters of the Weibull – distribution |
-| $c_{1-3}$ | Constants of throughput equation |
-| $c_p$ | Specific heat capacity at a constant pressure |
-| $c_{p,0}$ | Specific heat capacity at 0°C |
-| $c_{p,m}$ | Pitch of the linear regression of the specific heat capacity (melt regime) |
-| $e$ | Width of the flights |
-| $e_{max}$ | Maximum width of the flights |
-| $f$ | Filling degree |
-| $\overline{f}$ | Average filling degree of a pair of screw elements |
-| $f$ | Probability density function |
-| $f_i$ | Filling degree at the location i |
-| $f_1$ | Dimensionless value for the throughput model |
-| $f_{l,exp.}$ | Local filling degree, of the left screw (downstream view) |
-| $f_{r,exp.}$ | Local filling degree, of the right screw (downstream view) |
-| $f_{Korr}$ | Volume correction factor |
-| $h$ | Channel height |
-| $\overline{h},h(f)$ | Average, effective channel height |
-| $h_i$ | Channel height at the location i |
-| $h_{max}$ | Maximum channel height |
-| $h(\Theta)$ | Channel depth in polar coordinates |
-| $h(x)$ | Channel depth in Cartesian coordinates |
-| $\Delta h_0$ | Difference of enthalpies at reference temperature $T_0$ |
-| $\Delta h_l$ | Pitch of the linearised enthalpy difference (melt regime) |
-| $\Delta h$ | Difference of enthalpies |
-| $\Delta h_A$ | Melting enthalpy |
-| $\Delta h_F$ | Solid enthalpy |
-| $i$ | Counter variable |
-| $i$ | Number of flights |
-| $j$ | Counter variable |
-| $j_\Delta$ | Number of triangular gaps in a kneading block |
-| $j_{Kn,j}$ | Number of kneading discs |
-| $k$ | Number of parallel channels in the channel model |
-| $k_i$ | Number of parallel channels in the channel model for element i |
-| $k_1, k_2$ | Constants |
-| $m$ | Average shape factor for the intermeshing region |
-| $m$ | Geometric value |
-| $\dot{m}$ | Mass throughput |
-| $\dot{m}_D$ | Mass throughput in the pressure screen |
-| $m$ | Mass in the screw channels |
-| $m_A$ | Mass in the screw channels in the melting regime |
-| $m_F$ | Mass in the screw channels in the solids conveying regime |
-| $m_S$ | Mass in the screw channels in the melt conveying regime |
-| $n$ | Power law exponent |
-| $n_{Spalt}$ | Power law exponent in the radial clearance |
-| $n_{Kanal}$ | Power law exponent in the free channel section |
-| $n_0$ | Screw speed |
-| $p$ | Pressure |
-| $p_D$ | Pressure in front of the screen pack |
-| $p_i$ | Pressure at the location i |
-| $p_{max}$ | Maximum radial pressure |
-| $p_{1-5}$ | Pressure at the location 1-5 |
-| $p_0$ | Zero pressure |
-| $p_{0-4}$ | Pressure at the location 0-4 |
-| $p_W$ | Die back pressure |
-| $\Delta p_x$ | Pressure difference in x-direction |
-| $p_x$ | Pressure gradient in x-direction |
-| $s_F$ | Tip clearance |
-| $s_R$ | Radial clearance |
-| $s_{RKorr}$ | Corrected radial clearance |
-| $s_W$ | Calander gap |
-| $t$ | Lead |
-| $t,t_M$ | Time, measuring time |
-| $\overline{t}$ | Average residence time |
-| $t_0$ | Dead time |
-| $t_1$ | Minimum residence time |
-| $t_{1i}$ | Minimum residence time in the element i |
-| $u$ | Counter variable |
-| $v$ | Velocity |
-| $v$ | Specific volume |
-| $v_{rel}$ | Relative velocity |
-| $v_y$ | Velocity in y-direction |
-| $v_0$ | Circumferential velocity of the screws |
-| $v_{0x}$ | Circumferential velocity of the screws in x-direction |
-| $v_{0z}$ | Circumferential velocity of the screws in z-direction |
-| $v_{Fz}$ | Velocity of the solid bed |
-| $\overline{v_{Fz}}$ | Average velocity of the solid bed |
-| $v_j$ | Velocity of the screws in j-direction |
-| $v_x$ | Velocity of the screws in x-direction |
-| $v_z$ | Velocity of the screws in z-direction |
-| $w$ | Distance between the points of inflection of the residence time distribution |
-| $x$ | Cartesian coordinate orthogonal to the channel direction |
-| $x_f$ | Position of the melt interface in the screw channel |
-| $x_{pmax}$ | Maximum radial pressure |
-| $y$ | Dimensionless solid bed width |
-| $y_j$ | Averaged dimensionless solid bed width for the element j |
-| $z_j$ | Length of the unwound channel for the element j |