[kaushikkn]

I am unable to give correct input parameters for simulating the flow past a circular cylinder with Reynold number 100. I have given the following inputs in my .cfg file
which I actually took from the test case suite

% -------------------- INCOMPRESSIBLE FREE-STREAM DEFINITION ------------------%
%
% Free-stream density (1.2886 Kg/m^3 (air), 998.2 Kg/m^3 (water))
FREESTREAM_DENSITY= 998.2
%
% Free-stream velocity (m/s)
FREESTREAM_VELOCITY= ( 0.0008, 0.00, 0.00 )
%
% Free-stream viscosity (1.853E-5 Ns/m^2 (air), 0.798E-3 Ns/m^2 (water))
FREESTREAM_VISCOSITY= 0.798E-3

The code is running but is not actually giving correct solution for Re=100. Since the flow is unsteady should we tamper with the following options for unsteady computations?
% ------------------------- UNSTEADY SIMULATION -------------------------------%
%
% Unsteady simulation (NO, TIME_STEPPING, DUAL_TIME_STEPPING-1ST_ORDER,
% DUAL_TIME_STEPPING-2ND_ORDER)
UNSTEADY_SIMULATION=NO
%
% Time Step for dual time stepping simulations (s)
UNST_TIMESTEP= 0.0015
%
% Total Physical Time for dual time stepping simulations (s)
UNST_TIME= 50.0
%
% Unsteady Courant-Friedrichs-Lewy number of the finest grid
UNST_CFL_NUMBER= 0.0
%
% Number of internal iterations (dual time method)
UNST_INT_ITER= 10

Also Wanted to know the basis of calculations for the input free stream parameter?

Best Regards

knk