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Numerical Simulation of Vortex Shedding from a Cylindrical Bluff-Body Flame Stabilizer

  • Sombuddha BagchiEmail author
  • Sourav Sarkar
  • Uddalok Sen
  • Achintya Mukhopadhyay
  • Swarnendu Sen
Conference paper
Part of the Lecture Notes on Multidisciplinary Industrial Engineering book series (LNMUINEN)

Abstract

A two-dimensional, laminar transient flow past a cylindrical bluff body, with methane injection perpendicular to the direction of the free stream flow, i.e. the cross-flow arrangement, is numerically studied. An unstructured grid finite volume method is used and simulations were carried out. The methane mass fraction and the injection velocity of methane injected from the slotted cylinder are altered simultaneously, and their effects on the combustion, flame characteristics, and fluid mechanics are investigated. The flame is anchored right in front of the cylinder and is stabilized by the wake of the bluff body. The current investigation illustrates the qualitative aspects of the vortex shedding phenomena. A particular case of injection velocity and mass fraction is studied in detail and its vortex shedding phenomena are analysed minutely. The non-reacting flow exhibits 2P mode of vortex shedding while the reacting flow exhibits the more common 2S mode. Fast Fourier transform analysis of the temporally fluctuating lift coefficient is performed for the different cases carried out in the present study.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Sombuddha Bagchi
    • 1
    Email author
  • Sourav Sarkar
    • 1
  • Uddalok Sen
    • 2
  • Achintya Mukhopadhyay
    • 1
  • Swarnendu Sen
    • 1
  1. 1.Department of Mechanical EngineeringJadavpur UniversityKolkataIndia
  2. 2.Department of Mechanical EngineeringUniversity of Illinois at ChicagoChicagoUSA

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