A numerical investigation of high pressure, counterflow methane-air partially premixed flames (PPFs) is presented to characterize the effect of pressure on flame structure. Four different mechanisms, namely GRI-2.11, GRI-3.0, the San Diego, and the C2 mechanisms have been examined. The mechanisms have been validated by comparing the predicted laminar flame speeds with experimental data. While t...

A front tracking method is developed to simulate the liquid-gas phase change phenomenon during vaporization/evaporation process. One eld formulation of the governing ow, energy and species equations are solved on an Eulerian grid with suitable jump conditions. Both phases are assumed to be incompressible; however, the divergence-free velocity eld condition is modi ed to account for the phase ch...

We describe a family of graphs with queue-number at most 4 but unbounded stack-number. This resolves open problems Heath, Leighton and Rosenberg (1992) Blankenship Oporowski (1999).