On the validity of the Hagen and Beverloo formulas for grains discharge through thin sidewalls of bins

• D.A. Serrano ^[1] ; G. Ruiz-Chavarría ^[1] ; M. Pliego ^[2] ; C.A. Vargas ^[4] ; A. Medina ^[3]
  1. [1] Universidad Nacional Autónoma de México

     Universidad Nacional Autónoma de México

     México

     
  2. [2] Instituto Tecnológico de Querétaro

     Instituto Tecnológico de Querétaro

     México

     
  3. [3] Universidad Politécnica de Madrid

     Universidad Politécnica de Madrid

     Madrid, España

     
  4. [4] UAM Azcapotzalco, México

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• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 65, Nº. 2, 2019, págs. 139-147
• Idioma: inglés
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• Resumen

  • In this work, we show through experiments, using cohesionless granular materials, that a simple formula proposed to estimate the granular outflow from orifices in thick sidewalls is also valid for thin sidewalls. The use of such a formula entails the approximate validity of the classical Hagen and Beverloo formulas for granular samples composed of small and large grains, respectively. Also, an estimation of the involved error when the wall thickness is left aside is given.