Numerical simulation of shock wave interaction with a water column

The paper describes a scheme which is based on the CTP scheme and modified to properly describe a gas/liquid interface without smearing the density ju mp across the interface. This was achieved by calculating the density separ ately for each phase. The density at each grid point was determined by usin g a density function in a similar fashion as CIP. As a result a sharp densi ty gradient was obtainable throughout the flow field and the scheme could h andle properly gas/liquid interfaces having a large density ratio. Shock wave interaction with a cylindrical water column was simulated. The n umerical results were compared with appropriate interferograms. Good agreem ent was found between the two. The results obtained for the cylindrical water column were compared with a similar solid cylinder case. The comparison reveled that even 40 mus after shock impingement some differences were found between a liquid column and t he solid cylinder.