SciELO - Scientific Electronic Library Online

 
vol.29 número4Una Revisión de los Estimadores de Matrices de Bajo Rango y Matrices DispersasModelado y Predicción del Fenómeno El Niño en Piura, Perú mediante Redes Neuronales Artificiales usando Matlab índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Información tecnológica

versión On-line ISSN 0718-0764

Resumen

BARRERA, Eddie F.; AGUIRRE, Fredy A.; VARGAS, Salvador  y  MARTINEZ, Edwin D.. Influence of Y Plus on the value of the Wall Shear Stress and the Total Drag Coefficient through Computational Fluid Dynamics Simulations. Inf. tecnol. [online]. 2018, vol.29, n.4, pp.291-302. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642018000400291.

In this work we studied the influence of Y plus (y+) on friction forces by computational fluid analysis to evaluate wall shear stress (() and the total drag coefficient (Cd) using a commercial Computational Fluid Dynamics (CFD) software, ANSYS-FLUENT V16.1. The analysis was made on the hull wall of a submarine autonomous vehicle; the Reynolds number used was 1.36 x106, based on the diameter of the submarine hull. The results showed that even though the y+ variation is within the viscous sublayer (y+ < 2) there is a dependence of the shear wall stress and drag coefficient results according to this parameter. For coarse meshing (y+ = 1.55) and extra-fine meshing (y+ = 0.00375); the percentage of variation of the wall shear stress was 74% and for the total drag coefficient was 44.3%; while the variation of the simulation time was 71%.

Palabras clave : computational fluid dynamics; wall shear stress; meshed density; y+; simulation time.

        · resumen en Español     · texto en Español     · Español ( pdf )