2026-04-17T04:32:14Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/84872024-06-14T09:37:13Zcom_2072_452955com_2072_2054col_2072_453063

Bernoulli correction to viscous losses: Radial flow between two parallel discs Armengol Masferrer, Jordi Calbó Angrill, Josep Pujol i Sagaró, Toni Roura Grabulosa, Pere Dinàmica de fluids Fluid dynamics Bernoulli, Funcions de Bernoulli's functions For a massless fluid (density = 0), the steady flow along a duct is governed exclusively by viscous losses. In this paper, we show that the velocity profile obtained in this limit can be used to calculate the pressure drop up to the first order in density. This method has been applied to the particular case of a duct, defined by two plane-parallel discs. For this case, the first-order approximation results in a simple analytical solution which has been favorably checked against numerical simulations. Finally, an experiment has been carried out with water flowing between the discs. The experimental results show good agreement with the approximate solution 2024-06-14T09:37:13Z 2024-06-14T09:37:13Z 2024-06-14T09:37:13Z 2008 info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion http://hdl.handle.net/10256/8487 info:eu-repo/semantics/altIdentifier/doi/10.1119/1.289729 info:eu-repo/semantics/altIdentifier/issn/0002-9505 Tots els drets reservats info:eu-repo/semantics/openAccess American Association of Physics Teachers © American Journal of Physics, 2008, vol. 76, núm. 8, p. 730-737 Articles publicats (D-F)