The Experimental and Simulation Study of Selective Catalytic Reduction System in a Single Cylinder Diesel Engine Using NH₃ as a Reducing Agent

Table 2

Boundary conditions used in the simulation work.

Solver control discretization
Calculation of boundary conditions: extrapolate	Calculation of derivatives: least square fit	Iteration method: simple	Decoupled domains: no	Realizability constraints: no
Equation control
Momentum and continuity: yes	Turbulence: K-epsilon	Energy: yes	Viscous heating: yes	Pressure work: yes
Differencing scheme
Momentum: central differencing	Continuity: central differencing	Turbulence: upwind	Energy: upwind	Scalar: upwind
Convergence criteria per time step
Maximum number of iterations: 60		Minimum number of iterations: 10