Following a suggestion of D. Bestion, [1], the Scientific Secretariat performed the direct application of the horizontal stratification criteria implemented into some SYS-TH codes to the TPTF 8-inch and Mantilla 2-inch airwater experimental data, [2], (no code calculations). Measurements performed at the Mantilla 2-inch and 6-inch flow loops do not allow a straightforward application of the horizontal stratification criteria implemented into SYS-TH codes. These criteria require the knowledge of the gas and liquid velocities and of the void fraction, but the void fraction was not measured. 1.1. Objectives and Scope of the Activity The objective of the present activity is to estimate the void fraction at the metering station and to quantify its uncertainty for the Mantilla 2-inch and 6-inch experiments in separated flow regimes or transition flow regimes, using the available experimental data. This task fits in the scope of a running FONEYS activity on the assessment of the capability of SYS-TH codes in predicting flow regime transitions in horizontal pipes,
Mantilla experiments: void fraction and flow regimes evaluation
Lanfredini M.Primo
;D'Auria FrancescoSecondo
;
2021-01-01
Abstract
Following a suggestion of D. Bestion, [1], the Scientific Secretariat performed the direct application of the horizontal stratification criteria implemented into some SYS-TH codes to the TPTF 8-inch and Mantilla 2-inch airwater experimental data, [2], (no code calculations). Measurements performed at the Mantilla 2-inch and 6-inch flow loops do not allow a straightforward application of the horizontal stratification criteria implemented into SYS-TH codes. These criteria require the knowledge of the gas and liquid velocities and of the void fraction, but the void fraction was not measured. 1.1. Objectives and Scope of the Activity The objective of the present activity is to estimate the void fraction at the metering station and to quantify its uncertainty for the Mantilla 2-inch and 6-inch experiments in separated flow regimes or transition flow regimes, using the available experimental data. This task fits in the scope of a running FONEYS activity on the assessment of the capability of SYS-TH codes in predicting flow regime transitions in horizontal pipes,I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.