Problem Independent Numerical Simulation of Two-Phase Flow in Combustors,
SHEFFIELD UNIV (ENGLAND) DEPT OF CHEMICAL ENGINEERING AND FUEL TECHNOLOGY
Pagination or Media Count:
Applying 3-D computer codes to isothermal and combusting two-phase flows is a multi-faceted processes. In the combustion case, this can involve the refinement of models for fuel droplet trajectories, droplet evaporation and radiation heat transfer. Turbulence modelling is also of basic importance. The realisation that many combustion flows do not satisfy the conditions of isotropy demanded by conventional models has stimulated more fundamental approaches to the Reynolds stress description. Since the common objective of such applications is to provide a basis for design, there is need for codes which are versatile, easy to operate, and interactive. This study reports some current progress in these areas. Aspects of the present code are presented including the coupling of flow and droplet motions and the interactive setting up procedure to define an arbitrary geometry. Calculated and measured velocity fields are shown for the isothermal flow in a coaxial dump combustor and results are presented for the combustion case using a baffle stabiliser.