... in boiling upward two-phase flow in a vertical annulus. The inner and outer diameters of the annulus were 19.1 mm and 38.1 mm, respectively. The hydraulic diameter of the flow channel, D H , was 19.0 mm and the total length is 4.477 m. The test section was composed of an injection port and five...

... level, boiling boundary, etc., is difficult at both steady state and transient states like load variation, start-up, and shutdown. Attempts have been made to develop a high-fidelity thermohydraulic model (five-equation scheme) that caters to nonhomogeneous and thermal nonequilibrium flow to derive...

... is electrohydrodynamic (EHD) forces which rely upon Coulomb forces on free charges and/or polarization forces on induced dipoles within the liquid to induce fluid motion. EHD has been used to pump liquid phases and to displace gas–liquid interfaces for enhanced boiling heat transfer as well as to displace gas/vapor...

...Subrata Roy computational fluid dynamics flow simulation drops two-phase flow boiling boundary-elements methods heat conduction convection compressible flow supersonic flow boundary layer turbulence Computational fluid dynamics (CFD) tools are the key for modern understanding...

... Engineering Division December 5, 2001; revised manuscript received November 13, 2002. Editor: S. Ceccio. 05 December 2001 13 November 2002 09 06 2003 drag boiling bubbles two-phase flow rotational flow flow visualisation undercooling laser Doppler anemometry Two-phase...

...Thomas A. Trabold, Project Manager,; Ranganathan Kumar, Senior Engineer Detailed measurements have been made in a high pressure, adiabatic (boiled at the inlet) annular flow in a narrow, high aspect ratio duct using a gamma densitometer, hot-film anemometer and high-speed video photography...