An efficient numerical method for a long-term simulation of heat and mass transfer: The case of an insulated rammed earth wall

Madina Abdykarim, Julien Berger, Denys Dutykh, Amen Agbossou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Innovative numerical scheme studied in this work enables to overcome two main limitations of Building Performance Simulation (BPS) programs as high computational cost and the choice of a very fine numerical grid. The method, called Super-Time-Stepping (STS), is novel to the state-of-the-art of building simulations, but has already proved to be sufficiently efficient in recent studies from anisotropic heat conduction in astrophysics (Meyer et al. (20I4)). The given research is focused on employment of this adopted numerical method to model drying of a rammed earth wall with an additional insulation layer. The results show considerable advantage of the STS method compared to standard EULER explicit scheme. It is possible to choose at least 100 times bigger time-steps to maintain high accuracy and to cut computational cost by more than 92 % in the same time.

Original languageBritish English
Title of host publication16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
EditorsVincenzo Corrado, Enrico Fabrizio, Andrea Gasparella, Francesco Patuzzi
Pages1444-1451
Number of pages8
ISBN (Electronic)9781713809418
StatePublished - 2019
Event16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019 - Rome, Italy
Duration: 2 Sep 20194 Sep 2019

Publication series

NameBuilding Simulation Conference Proceedings
Volume2
ISSN (Print)2522-2708

Conference

Conference16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019
Country/TerritoryItaly
CityRome
Period2/09/194/09/19

Fingerprint

Dive into the research topics of 'An efficient numerical method for a long-term simulation of heat and mass transfer: The case of an insulated rammed earth wall'. Together they form a unique fingerprint.

Cite this