Reply To: Turbulent channel flow: DNS relaminarizes and LES shows wavy flow at finer grid

[nipinl]

Velocity contours: Velocity Contours

LOG: Y+ 2.25 DNS :

`[UnitConverter] —————– UnitConverter information —————–
[UnitConverter] — Parameters:
[UnitConverter] Resolution: N= 200
[UnitConverter] Lattice velocity: latticeU= 0.0254542
[UnitConverter] Lattice relaxation frequency: omega= 1.99611
[UnitConverter] Lattice relaxation time: tau= 0.500973
[UnitConverter] Characteristical length(m): charL= 0.00199
[UnitConverter] Characteristical speed(m/s): charU= 7.88506
[UnitConverter] Phys. kinematic viscosity(m^2/s): charNu= 1e-06
[UnitConverter] Phys. density(kg/m^d): charRho= 1000
[UnitConverter] Characteristical pressure(N/m^2): charPressure= 0
[UnitConverter] Mach number: machNumber= 0.0440879
[UnitConverter] Reynolds number: reynoldsNumber= 15691.3
[UnitConverter] Knudsen number: knudsenNumber= 2.80971e-06
[UnitConverter]
[UnitConverter] — Conversion factors:
[UnitConverter] Voxel length(m): physDeltaX= 9.95e-06
[UnitConverter] Time step(s): physDeltaT= 3.21201e-08
[UnitConverter] Velocity factor(m/s): physVelocity= 309.775
[UnitConverter] Density factor(kg/m^3): physDensity= 1000
[UnitConverter] Mass factor(kg): physMass= 9.85075e-13
[UnitConverter] Viscosity factor(m^2/s): physViscosity= 0.00308226
[UnitConverter] Force factor(N): physForce= 0.00950033
[UnitConverter] Pressure factor(N/m^2): physPressure= 9.59605e+07
[UnitConverter] ————————————————————-
[main] ———————————————————————-
[main] Converge time(s): 0.266661
[main] Lattice converge time: 8301991
[main] Max. Phys. simulation time(s): 0.355548
[main] Max. Lattice simulation time: 11069321
[main] Frequency Statistics Save(Hz): 25
[main] Statistics save period(s): 0.04
[main] Lattice statistics save period: 1245326
[main] ———————————————————————-
[main] Channel height(m): 0.00199
[main] y+ value: 2.25004
[main] y+ value spacing: 4.4776