Difference between revisions of "SuperFINIX Cerberus input/output manual"
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[[SuperFINIX]] may take input and give output variables and fields from or to Cerberus. Some input variables are shared with the [[SuperFINIX input manual|SuperFINIX input file]]. | [[SuperFINIX]] may take input and give output variables and fields from or to Cerberus. Some input variables are shared with the [[SuperFINIX input manual|SuperFINIX input file]]. | ||
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| + | == Level index in field names == | ||
| + | Some input and output fields can be specified on different levels of the calculation geometry. Level 1 refers to the top level defined using [[SuperFINIX_input_manual#set_toplattice|set toplattice]] option in the input file. If the top lattice contains other lattices, fields at level 2 are available and so on. As an example, the geometry can consist of multiple fuel assemblies each containing multiple fuel rods. On level 1 the fields are specified on assembly level and on level 2 on rod level. | ||
== Input variables == | == Input variables == | ||
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== Output variables == | == Output variables == | ||
| − | + | There are no output variables in the current version. | |
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== Output fields == | == Output fields == | ||
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|Mesh size at level <idx> | |Mesh size at level <idx> | ||
|Maximum fuel temperature (K) | |Maximum fuel temperature (K) | ||
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|- | |- | ||
|sf_of_vol_ave_fuel_T_radial | |sf_of_vol_ave_fuel_T_radial | ||
| − | |Mesh size at radial output level | + | |Mesh size at radial output level |
|Volume averaged fuel temperature (K) | |Volume averaged fuel temperature (K) | ||
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|sf_of_rod_idx | |sf_of_rod_idx | ||
|Horizontal mesh size at the geometry level where rods are located | |Horizontal mesh size at the geometry level where rods are located | ||
|Current rod index at each position. Used with fuel shuffling. | |Current rod index at each position. Used with fuel shuffling. | ||
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|sf_of_centerline_fuel_T | |sf_of_centerline_fuel_T | ||
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|Width of the gas gap between fuel pellet and cladding (m) | |Width of the gas gap between fuel pellet and cladding (m) | ||
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| − | | | + | |sf_of_gap_conductance |
|Mesh size at level where rods are located | |Mesh size at level where rods are located | ||
| − | |Gas gap | + | |Gas gap conductance between fuel pellet and cladding (W/(m<sup>2</sup>K)) |
|- | |- | ||
|sf_of_centerline_burnup | |sf_of_centerline_burnup | ||
|Mesh size at level where rods are located | |Mesh size at level where rods are located | ||
|Pellet centerline burnup (MWd/kgU) | |Pellet centerline burnup (MWd/kgU) | ||
| + | |- | ||
| + | |sf_of_outer_clad_radius | ||
| + | |Mesh size at level where rods are located | ||
| + | |Cladding outer radius (m) | ||
| + | |- | ||
| + | |sf_of_power_to_coolant | ||
| + | |Mesh size at level where rods are located | ||
| + | |Power transferred to coolant (W) calculated as <math>rod\_mult \cdot 2\pi r h \cdot htc \cdot (T_{\text{clad}} - T_{\text{cool}}) </math>. Should be used only if the heat transfer coefficients and bulk coolant temperatures have been given to SuperFINIX. | ||
| + | |- | ||
| + | |sf_of_outer_clad_heat_flux_steady | ||
| + | |Mesh size at level where rods are located | ||
| + | |Power deposited in the fuel converted to heat flux ((W/(m<sup>2</sup>) by dividing the power with the outer surface area of the cladding. | ||
|} | |} | ||
Latest revision as of 14:22, 19 October 2023
SuperFINIX may take input and give output variables and fields from or to Cerberus. Some input variables are shared with the SuperFINIX input file.
Contents
Level index in field names
Some input and output fields can be specified on different levels of the calculation geometry. Level 1 refers to the top level defined using set toplattice option in the input file. If the top lattice contains other lattices, fields at level 2 are available and so on. As an example, the geometry can consist of multiple fuel assemblies each containing multiple fuel rods. On level 1 the fields are specified on assembly level and on level 2 on rod level.
Input variables
| Variable name | Number of values | Description |
|---|---|---|
| sf_iv_finix_bc_type | 1 | Boundary condition type for the fuel rods. 0 = user specified cladding outer surface temperature, 2 = user specified heat transfer coefficient and coolant bulk temperature. |
Input fields
| Field name | Number of values | Description |
|---|---|---|
| sf_if_power_lvl<idx> | Mesh size at level <idx> | Power deposited in the fuel (W). |
| sf_if_clad_T_lvl<idx> | Mesh size at level <idx> | Cladding outer surface temperature (K). |
| sf_if_HTC_lvl<idx> | Mesh size at level <idx> | Heat transfer coefficient between cladding outer surface and coolant (W/(m2K)). |
| sf_if_cool_T_lvl<idx> | Mesh size at level <idx> | Coolant bulk temperature (K). |
| sf_if_power_radial | Mesh size at radial input level | Power deposited in the fuel (W). |
| sf_if_rod_idx | Horizontal mesh size at level where rods are located (<idx>) | Index of rod to initialize to each position. Used with fuel shuffling. |
Output variables
There are no output variables in the current version.
Output fields
| Field name | Number of values | Description |
|---|---|---|
| sf_of_vol_ave_fuel_T_lvl<idx> | Mesh size at level <idx> | Volume averaged fuel temperature (K) |
| sf_of_eff_fuel_T_lvl<idx> | Mesh size at level <idx> | Effective 0.7/0.3 Doppler fuel temperature (K) |
| sf_of_max_fuel_T_lvl<idx> | Mesh size at level <idx> | Maximum fuel temperature (K) |
| sf_of_vol_ave_fuel_T_radial | Mesh size at radial output level | Volume averaged fuel temperature (K) |
| sf_of_rod_idx | Horizontal mesh size at the geometry level where rods are located | Current rod index at each position. Used with fuel shuffling. |
| sf_of_centerline_fuel_T | Mesh size at level where rods are located | Centerline fuel temperature (K) |
| sf_of_outer_fuel_T | Mesh size at level where rods are located | Pellet surface temperature (K) |
| sf_of_inner_clad_T | Mesh size at level where rods are located | Cladding inner surface temperature (K) |
| sf_of_outer_clad_T | Mesh size at level where rods are located | Cladding outer surface temperature (K) |
| sf_of_gap_width | Mesh size at level where rods are located | Width of the gas gap between fuel pellet and cladding (m) |
| sf_of_gap_conductance | Mesh size at level where rods are located | Gas gap conductance between fuel pellet and cladding (W/(m2K)) |
| sf_of_centerline_burnup | Mesh size at level where rods are located | Pellet centerline burnup (MWd/kgU) |
| sf_of_outer_clad_radius | Mesh size at level where rods are located | Cladding outer radius (m) |
| sf_of_power_to_coolant | Mesh size at level where rods are located | Power transferred to coolant (W) calculated as  . Should be used only if the heat transfer coefficients and bulk coolant temperatures have been given to SuperFINIX.
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| sf_of_outer_clad_heat_flux_steady | Mesh size at level where rods are located | Power deposited in the fuel converted to heat flux ((W/(m2) by dividing the power with the outer surface area of the cladding. |
