[beratcagan]

Hello,
so i am new to OpenFOAM and simulation in general and i am currently trying to simulate a two dimentional pipe flow. I managed to obtain a satisfiying result/flow profile in my simulation.
Now I am looking to making the simualtion bigger by simply changing the value form the "converttoMeter" command in the BlockMesh file. When i do so i am getting a completly unrealistic flow profile, even though every other part of the Simualtion is exactly the same. I allready tried increasing/decreacing the velocity at the input patch, this didnt change anything though.

BlockMesh of the working Simulation:

convertToMeters 0.000001;

vertices
(
(0 0 0)
(35000 0 0)
(35000 3500 0)
(0 3500 0)
(0 0 65)
(35000 0 65)
(35000 3500 65)
(0 3500 65)
);


blockMesh of the faulty simulation

convertToMeters 1;

vertices
(
(0 0 0)
(35000 0 0)
(35000 3500 0)
(0 3500 0)
(0 0 65)
(35000 0 65)
(35000 3500 65)
(0 3500 65)
);

as i already mentioned the rest of the simulation is exactly the same, despite me tryed to change up the velocity which didnt change anything though.

now i am curious what i am doing wrong. i would appreate the sightest hints which would help me solve my problem.