ANALYSIS OF LAMINAR FLOW THROUGH A 3-D GEOMETRY WITH BAFFLE’S OF DIFFERENT SIZE FOR CONTROLLING GENERATION OF RECIRCULATION BUBBLES

  • Unique Paper ID: 166659
  • Volume: 11
  • Issue: 2
  • PageNo: 1611-1616
  • Abstract:
  • The research work presented here is the analysis of laminar fluid flow through a three dimensionl rectangular duct with baffles fitted at the lower wall, extending from one vertical wall to the other vertical wall respectively. The governing equations include the laminar Naviers Stokes eqution in a 3-D geometry neglecting body forces. The numerical methodology applied is the Control Volume Formulation of S. V. Patankar using SIMPLER Algoritham and power law scheme utilising the staggered grid conception. The results presented are the velocity vectors for different cases analysed along with the velocity, friction factor distributions. The streamtraces have been presented to visualize the recirculation bubble which is further corroborated by the presentation of the recirculation dimensions for different cases studied. It has been observed that both axial and vertical extent of the recirculation bubbles before and after bubbles strongly depends on buffle geometry and size. Though the variation are different for recirculation bubbles before and after the baffle respectively.

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