Turbulence model

Low-Re-type k-e model (Abe-Kondoh-Nagano model)

Mesh

1,913,914 meshes (wall unit y+ < 1)

Scheme

Convection term: second-order upwind

Inflow boundary

(room model)

Case 1: Uin = 0.2 m/s, kin = 3/2(0.1Uin)2, , Cμ = 0.09, lin = 0.02 m

Case 2: Uin = 0 m/s

Cin = 0

Outflow boundary

(room model)

Uout = free slip, kout = free slip, eout = free slip

Cout = free slip

Inflow boundary

(VHP generator)

Uin = 8.1 m/s, kin = 3/2(0.1Uin)2, , Cμ = 0.09, lin = 0.02 m

Cin,VHP-g = 1.0

Outflow boundary

(VHP generator)

Uout = free slip, kout = free slip, eout = free slip

Cout,VHP-g = free slip

Wall treatment

Velocity, no-slip

VHP, deposition flux model in Equation (6)

VHP

Passive scalar (turbulent Schmidt number σt = 1.0)