Volume of fluid (VOF) method is a sharp interface employed for simulations two phase flows. Interface in VOF usually represented using piecewise linear line segments each computational grid based on the volume fraction field. While cartesian coordinates conserve mass exactly, existing algorithms do not show machine-precision conservation axisymmetric coordinate systems. In this work, we propose...

Subcooled flow boiling in multi-microchannels can be used as an efficient thermal management approach in compact electrical devices. Highly subcooled flow boiling of HFE 7100 is studied in two microchannel heat sinks to choose a proper numerical model for simulating boiling flows in microchannels. Results of five different numerical models, including Volume of Fluid (VOF), Eulerian boiling, Eul...

Pedro LOPES, Ph.DCandidate (Corresponding author) 3 Department of Civil Engineering & MARE Marine and Environmental Sciences Centre, 4 University of Coimbra, [email protected] 5 Jorge LEANDRO, Ph.D 6 Department of Civil Engineering & MARE Marine and Environmental Sciences Centre, 7 University of Coimbra, [email protected] 8 Rita F. CARVALHO, Ph.D 9 Department of Civil ...

Two-fluid dynamics is a challenging subject, rich both in physics and in practical applications, which range from manufacturing to lubricated transport. Mechanisms unique to a flow can be exploited to enhance functionality in applications. For example, density-matching can be used to depress the effect of gravity, or of centripetal acceleration in rotating systems, making it possible to manipul...