Journal of Nuclear Energy Science & Power Generation TechnologyISSN: 2325-9809

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Cristina Bertani Author

Subjects of specialization
Helical pipes; Pressure drops; Two phase flow; Fluid dynamic instability; RELAP5/MOD3.3 code

Affiliation
Politecnico di Torino, Department of Energy, Italy

Biography

Cristina Bertani Politecnico di Torino, Department of Energy, Italy                                                                                                                    


Publications

Research Article Open Access

Fluid Dynamics in Parallel Helical Pipes

Author(s):

Cristina Bertani, Mario De Salve and Bruno Panella

Single phase and air-water two-phase flow in 12 mm inner diameter parallel helical pipes are investigated with three different coils diameters. Flow rate distribution, pressure drops and void fraction, along the pipes in the parallel channels are measured. The test pressure drops are compared with theoretical ones, in terms of friction factors and two phase multipliers. The instabilities arisen during the experimental tests are investigated and are related to the void fraction and flow quality. The void fraction values corresponding to the onset of oscillations are compared with a modified RELAP5/MOD3.3 code results at the same fluid dynamic conditions. Then the density wave, the flow pattern and parallel channel oscillations in some simple cases like a sing... view moreĀ»

DOI: 10.4172/2325-9809.1000158

Abstract HTML PDF



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