Solving moving boundary problems with an adaptive moving grid method: Rotary heat exchangers with condensation and evaporation
Please always quote using this URN: urn:nbn:de:0297-zib-2679
- A numerical method for the treatment of moving discontinuities in the model equations of chemical engineering systems is presented. The derived model describing the effects of condensation and evaporation in a regenerative air to air heat exchanger yields an illustrative example for these so called moving boundary problems. The presented adaptive moving grid method is based on the algorithm {\sc Pdex} for parabolic partial differential equations. It is shown that the method is suited for problems where the arising discontinuities cause low rates of convergence if the equations are solved with a static grid.
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| Author: | Jörg Frauhammer, Harald Klein, Gerhart Eigenberger, Ulrich Nowak |
|---|---|
| Document Type: | ZIB-Report |
| Date of first Publication: | 1996/12/12 |
| Series (Serial Number): | ZIB-Report (SC-96-57) |
| ZIB-Reportnumber: | SC-96-57 |
| Published in: | Appeared in: Chem. Eng. Sci. 53, 1998, 3393-3411 |
