---------- Control File for Flowsquare ver 4.0 (Use SI Unit) ----------
------------------------- General Control Data ------------------------
01:cmode        0  // Simulation mode, 0:non-reac, 1:premixed, 2:non-premixed, 3:Euler, 4:analysis
02:nx          64  // No. grid points
03:ny          64  // No. grid points
04:lx        0.2  // Domain x-size
05:ly        0.2  // Domain y-size
06:sts          0  // Start time step (new simulation starts from sts=0)
07:latts     2000// End time step
08:cflfac      10  // Delta t factor (more is better, but typically 10-1000)
---------------- Numerical Scheme, Smoothing & Accuracy ---------------
09:iorder       3  // 0: low order, 1: high order, 2:2nd+LW, 3:4th+LW
10:nfil         1  // Interval time steps for filtering
11:wfil       0.1  // Relaxation parameter for filtering
12:omega      1.8  // Relaxation parameter for Poisson Eq     (for cmode=0-2)
13:peps    1.0E-2  // Convergence limit for Poisson Eq        (for cmode=0-2)
14:loopmax    400  // Maximum no. of iteration for Poisson Eq (for cmode=0-2)
15:wdrho      1.0  // Factor for d(rho)/dt (0<=wdrho<=1.0, 1 is ideal for cmode=1&2)
------------------ General BC and Global IC (White) -------------------
16:perikey      0  // 0: no peri, 1: x-peri, 2: y-peri, 3: all peri
17:pres0  1.0E+05  // Pressure in Pa (atmospheric: 1.0E+05 Pa)
18:uin0       1.0  // Initial u
19:vin0         0  // Initial v
20:rho0       1.2  // Initial density     (for cmode=0,3)
21:temp0        0  // Initial temperature (for cmode=1,2)
22:scalar0      0  // Initial Mixture fraction    (for cmode=2)
------------------ BLUE Local BC and/or IC (optional) -----------------
23:uin1       1.0  // U
24:vin1         0  // V
25:rho1       1.2  // Density          (for cmode0,3)
26:temp1        0  // Temperature      (for cmode1,2)
27:scalar1      0  // Mixture fraction (for cmode2)
------------------ RED Local BC and/or IC (optional) ------------------
28:uin2         0  // U
29:vin2         0  // V
30:rho2         0  // Density          (for cmode0,3)
31:temp2        0  // Temperature      (for cmode1,2)
32:scalar2      0  // Mixture fraction (for cmode2)
---------- PINK Local BC and/or IC (pure air flow, optional) ----------
33:uin3         0  // U
34:vin3         0  // V
35:temp3        0  // Temperature
--------------- BLACK Wall Boundary Condition (optional) --------------
36:tempw        0  // Temperature (0: free, for cmode1,2)
-------------- GREEN Moving Boundary Condition (optional) -------------
37:imb          0  // 0:one-time, 1:periodic
38:umb          0  // U of moving boundary
39:vmb          0  // V of moving boundary
40:tempmb       0  // Temperature (0: free, for cmode1,2)
------------- YELLOW Scalar Boundary Condition (optional) -------------
41:scalarT      0  // Local scalar value which might be used as tracer
---------- Transport Properties & Thermochemical Conditions -----------
42:mu        2E-5  // Dynamic viscosity of mixture
43:R            0  // Specific gas constant J/kg K (for cmode=1,2)
44:diff         0  // Diffusivity of mixture       (for cmode=1,2,yellow BC)
45:Tu           0  // Unburnt temperature          (for cmode=1)
46:Tb           0  // Burnt (flame) temperature    (for cmode=1,2)
------------------- Chemical Reaction (for cmode=1) -------------------
47:krate        0  // Rate onstant
48:Trate        0  // Activation temperature
49:nrate        0  // Rate ~ rho*k*exp(-Ta/T)*T^n
50:cF           0  // Progress variable at which flame locates (optional for vis)
--------------- Non-Premixed Reacting Flow (for cmode=2) --------------
51:Xst          0  // Stoichiometric mixture fraction at which flame locates
52:sigma        0  // Relaxation parameter for density change (0<=sigma<=1, 1 is ideal)
-------------------------- Display & Output ---------------------------
53:box          8  // Pixel size of one grid point
54:nfig       200  // Interval time steps for figure output    (0:off)
55:nfile     1000  // Interval time steps for dump file output (0:off)
56:bcdisp       1  // Display wall boundary (0:off, 1:on)
57:idisp        4  // 0:off,1:rho,2:u,3:v,4:spd,5:vrt,6:T,7:rate,8:c/xi,9:P
58:cmax         0  // Scale (max). 0:auto scale
59:cmin         0  // Scale (min). 0:auto scale
60:icolor       0  // 0:Jet,1:Rainbow,2:Nishiki,3:Gray,4:Gray(inv),5:Hot,6:Sea,7:Leaf
61:icont        0  // (Reaction front) contour line (0:off,1:blck,2:red,3:grn,4:bl,5:wht)
62:linewidth    0  // Line width of contour line (1, 3, 5 or 7)
63:ivec         1  // Velocity vector (0:off,1:blck,2:red,3:grn,4:bl,5:wht)
64:ndiv         2  // Interval grid points between displayed vectors (0:auto)
65:vecsize      3  // Pixel size of vector arrow (0:auto)
------------------ Lagrangian Trajectory (optional) -------------------
66:lagkey       0  // 0:off,1:x, 2:y,3:x-x,4:y-y
67:lagcolor     0  // 0:black, 1:white
68:lagsize      0  // Pixel size of particles
69:nlagra       0  // Interval time steps of restart (>=100)
70:npart        0  // No. particle (>=1000)
------------------------ Body Force (optional) ------------------------
71:gfx          0  // X-body force
72:gfy          0  // Y-body force
73:dref         0  // Reference density. 1:max, 2:middle, 3:min density as reference
------------------- Initial Perturbation (optional) -------------------
74:pmode        0  // Mode of perturbation 0:off, 1:single mode, 2:multi, 3:multi (random amp.)
75:umag         0  // Velocity amplitude (m/s)
76:nwave        0  // Number of waves in x-direction
-------------------------------- Others -------------------------------
77:nwait        0  // Wait time
-----------------------------------------------------------------------
#End of file