A collisional method to correct the mesh distortion in two-dimensional Lagrangian hydrocodes
The CCMM, a method to correct the distortion of the cells used to zone the fluid in two-dimensional Lagrangian hydrodynamic codes, is presented. Two representative cases are used to illustrate the operation of the code DUED, with and without this method. These are a plane target irradiated with a laser and a cylinder compressed by a non-uniform pressure. In both cases, q=0 is adopted when the CCMM is active. Generally, the CPU consumption is two or three times larger with the CCMM switched on than off. Even so, it remains a useful method to avoid convergency problems and/or error stopping simulations.
Bibliographic Reference: Report: RT/FUS/88/5 EN 1988
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P. 65-00044 Frascati, Roma (IT)
Record Number: 198910601 / Last updated on: 1994-12-01
Original language: en
Available languages: en