Transient predictions of lateral jet injection into typical isothermal combustor flowfields

Conference · Tue Jan 01 04:00:00 EST 1985 · AIAA Pap.; (United States)

OSTI ID:5627225

Busnaina, A A

A fully three-dimensional turbulent time-dependent computer simulation is being used to investigate primary and dilution lateral jet injection into a typical combustor in the absence of combustion. Predictions of the transient and time-mean flowfield of a deflected turbulent jet in a confining cylindrical swirling crossflow are presented. The effect of jet-to-crossflow velocity ratios of 2, 4, and 6 in a cross flow with swirl strengths of (swirler vane angle) 0, 45, and 70 degrees were investigated. Predictions are compared with deflected-jet flow visualizations using smoke and neutrally buoyant helium-filled soap bubbles. Single and multilateral jets are also considered in the investigation. The predicted results exhibit good agreement with the trajectory and spread pattern of the jet obtained using flow-visualization techniques. The transient three-dimensional code utilizes a finite-difference explicit-time-marching scheme in cylindrical coordinates. Turbulence is simulated by means of the two-equation k-epsilon turbulence model.

• Research Organization: Clarkson Coll. of Tech., Potsdam, NY
• OSTI ID: 5627225
• Report Number(s): CONF-850136-
• Conference Information: Journal Name: AIAA Pap.; (United States) Journal Volume: 85-0144
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
BOUNDARY-VALUE PROBLEMS
COMBUSTORS
COMPARATIVE EVALUATIONS
FINITE DIFFERENCE METHOD
FLOW VISUALIZATION
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS TURBINES
ITERATIVE METHODS
JETS
MACHINERY
NUMERICAL SOLUTION
TIME DEPENDENCE
TURBINES
TURBOMACHINERY
TURBULENT FLOW
VORTEX FLOW