Calculations of magnetohydrodynamic swirl combustor flowfields

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · J. Energy; (United States)

OSTI ID:5869339

Gupta, A K; Beer, J H; Khan, H; Lilley, D G

The objectives of the paper were to theoretically calculate and experimentally verify the fluid mechanics in the second stage of a model MHD swirl combustor with special emphasis on avoidance of the boundary-layer separation as the flow turns in to the MHD disk generator; to find the most suitable seed injection point at the entrance to the second stage which will yield uniform seed concentration at the combustor exit prior to entry into the disk generator. The model combustor is a multiannular swirl burner that is placed at the exit of the first-stage swirl combustor, which in turn can be used to vary the turbulent shear that arises between the individual swirling concentric annuli. This design permits ultrahigh swirl in the second stage with swirl vanes (if any) to be placed outside the very high temperature regions of the combustor in the clean preheated air. The gas burns completely in the second-stage combustor and turns 90 deg into the disk generator along a trumpet-shaped exit module. In this synoptic results are presented of the fluid mechanics in the trumpet-shaped second-stage exit module, with water as the working fluid.

• Research Organization: MIT, Cambridge, MA
• OSTI ID: 5869339
• Journal Information: J. Energy; (United States), Journal Name: J. Energy; (United States) Vol. 6:5; ISSN JENED
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300104* -- MHD Generators-- Duct Engineering & Fluid Dynamics
AERODYNAMICS
ANGULAR VELOCITY
CALCULATION METHODS
COMBUSTORS
COMPUTER CODES
DIRECT ENERGY CONVERTERS
FINITE DIFFERENCE METHOD
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
FLUIDS
ISOTOPE APPLICATIONS
ITERATIVE METHODS
MECHANICS
MHD GENERATORS
NOZZLES
NUMERICAL SOLUTION
PRESSURE DEPENDENCE
RADIAL VELOCITY
SHEAR
SIMULATION
TRACER TECHNIQUES
TURBULENCE
VELOCITY
VERY HIGH TEMPERATURE
VORTEX FLOW
WORKING FLUIDS