Computer calculation of crack permeability coefficients and pressure exponents for cracks in structural components. Zur rechnerischen entwicklung von fugendurchlass koeffizienten und druckexponenten fur bauteilfuegen

Derives mathematical relationships for the connection between pressure loss and volume flowrate using simple crack models and applying known laws of similarity for flow in pipes or gaps. Demonstrates how these relationships permit more exact determination of the permeability of cracks in normal building structural components than has been possible hitherto with the use of a few approximate average values for crack permeability coefficients and pressure exponents.