T0 300[K] "Ambient temperature"
Pext 11[kW] "Coil excitation power"
f0 3[MHz] "Coil excitation frequency"
r_3 125[mm] "Axial length: Computational domain"
L_3 200[mm] "Height: Computational domain and sheath tube"
d_1 2[mm] "Thickness: Carrier tube"
L_0 50[mm] "Height: Carrier tube and central tube"
r_1 3.7[mm] "Inner radius: Carrier tube"
d_2 2.2[mm] "Thickness: Central tube"
r_2 18.8[mm] "Inner radius: Central tube"
d_3 3.5[mm] "Thickness: Sheath tube"
r_0 25[mm] "Inner radius: Sheath tube"
d_c 6[mm] "Diameter: Coils"
r_c 33[mm] "Axial length: Center of the coils"
L_1 63[mm] "Height: Center of the lower coil"
L_2 121[mm] "Height: Center of the upper coil"
Q_1 1[l/min] "Gas stream: Carrier tube"
Q_2 3[l/min] "Gas stream: Central tube"
Q_3 31[l/min] "Gas stream: Sheath tube"
M 0.04[kg/mole] "Molar mass: Argon"
mv_stp 22.4[l/mole] "Molar volume at stp"
mdot1 M*Q_1/mv_stp "Mass flow rate: Carrier tube"
mdot2 M*Q_2/mv_stp "Mass flow rate: Central tube"
mdot3 M*Q_3/mv_stp "Mass flow rate: Sheath tube"
rho_stp 1.91[kg/m^3] "Density of argon at stp"
A1 pi*(r_1)^2 "Cross section: Carrier gas stream"
A2 pi*(r_2^2-(r_1+d_1)^2) "Cross section: Central gas stream"
A3 pi*(r_0^2-(r_2+d_2)^2) "Cross section: Sheath gas stream"
v1 mdot1/rho_stp/A1 "Velocity: Carrier gas stream"
v2 mdot2/rho_stp/A2 "Velocity: Central gas stream"
v3 mdot3/rho_stp/A3 "Velocity: Sheath gas stream"