A comparison of computed infiltration rates with results obtained from a set of full-scale measurements.

Presents results obtained from a digital analogue method of calculating infiltration rates in building. The results are compared with a set of full-scale observations carried out by G.T.Tamura and A.G. Wilson. (abstract no.192). Finds that calculated and full-scale results give good agreement in terms of the rate of change of air infiltration rate with wind speed and that both show that total infiltration rate is more sensitive to wind speed than wind direction. Suggests reasons for discrepancies between calculated and full-scale results and emphasises that errors in the method mean that only general conclusions can be drawn. NOTE Abstract 239 Bilsborrow, R.E. "Digital analogue for natural ventilation calculations" Dept. of. Building Science BS6 gives description and print-out of program.