Research Article
Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Steady State BFBT Data
Table 6
Sensitivity coefficients for the two-phase flow pressure drop.
| Case (P600x) | Outlet pressure | Mass flow rate | Inlet temperature | Wall roughness | -spacer | Hydraulic diameter | Power |
| 01 | 0.189 | 0.212 | −0.645 | −0.013 | 0.387 | −0.486 | −0.040 | −0.391 | 0.322 | 0.802 | 0.314 | 0.002 | — | 0.029 | 08 | −0.184 | 0.263 | 0.406 | 0.055 | 0.342 | −0.700 | 0.126 | −0.396 | 0.287 | 0.672 | 0.087 | 0.509 | — | 0.013 | 14 | −0.197 | 0.252 | 0.447 | 0.058 | 0.328 | −0.678 | 0.131 | −0.394 | 0.272 | 0.730 | 0.061 | 0.408 | — | 0.232 | 20 | −0.158 | 0.245 | 0.308 | 0.044 | 0.331 | −0.750 | 0.181 | −0.413 | 0.284 | 0.641 | 0.086 | 0.485 | — | 0.334 | 22 | 0.202 | 0.203 | −0.653 | −0.017 | 0.390 | −0.479 | −0.033 | −0.280 | 0.250 | 0.865 | 0.030 | 0.263 | — | 0.098 | 30 | −0.193 | 0.250 | 0.400 | 0.056 | 0.338 | −0.701 | 0.149 | −0.445 | 0.269 | 0.646 | 0.070 | 0.502 | — | 0.294 |
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