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MODELLING OF MOISTURE TRANSFER IN STRUCTURES. 1. A DESCRIPTION OF A FINITE DIFFERENCE NODAL MODEL.

Author(s) : CUNNINGHAM M. J.

Type of article: Article

Summary

DESCRIBES THE PHYSICAL, NUMERICAL AND COMPUTATIONAL BASIS OF A ONE, TWO OR THREE DIMENSIONAL FINITE-DIFFERENCE NODAL MODEL FOR HEAT AND MOISTURE TRANSFER IN BUILDINGS. THE MODEL IS DESIGNED TO BE VERY FLEXIBLE TO PERMIT THE ANALYSIS OF A WIDE VARIETY OF GEOMETRIES AND CIRCUMSTANCES. THE SOLUTION PROCEDURE IS FULLY IMPLICIT WITH NON-LINEAR PROCESSES SUCH AS CONDENSATION, RADIATION AND CONVECTION BEING DESCRIBED IN TERMS OF AN EFFECTIVE CONDUCTANCE AT EACH TIME STEP. THE MODEL IS ITERATED AT EACH TIME STEP TO ARRIVE AT A GOOD ESTIMATE OF THE UPDATED VALUE OF THESE EFFECTIVE CONDUCTANCES.

Details

  • Original title: MODELLING OF MOISTURE TRANSFER IN STRUCTURES. 1. A DESCRIPTION OF A FINITE DIFFERENCE NODAL MODEL.
  • Record ID : 1990-1984
  • Languages: English
  • Source: Build. Environ. - vol. 25 - n. 1
  • Publication date: 1990

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