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[FAQ]

For a Lagrange particle simulation, the ANSYS CFX Solver can stop with the following error message in the first particle iteration: Details of error:- —————- Error detected by routine PEEKR CDANAM = VALUE CRESLT = ADRS Current Directory : /PARTICLE/BOUNDCON/ZN1/PIR1/PT1/DIAMETER/NUMFRC Please check the following topics to find the cause of the error: – A common mistake is that a too small number of representative particles (number of positions) is defined, so that the solver will stop during injection if a band representing more than 1% of the total injected mass did not receive any representative particles. – If the lists for the number fraction and the mass fraction are specified manually in the CCL, please consider that the syntax for example 4*0.25 is not accepted by the ANSYS CFX Solver. The CCL in this case should look like: PARTICLE DIAMETER DISTRIBUTION: Diameter List = 10 [micron], 20 [micron], 30 [micron], 40 [micron] Mass Fraction List = 0.25,0.25,0.25,0.25 Number Fraction List = 0.25,0.25,0.25,0.25 Option = Discrete Diameter Distribution END When the lists are defined in the GUI of ANSYS CFX Pre with 4*0.25, the CCL in the definition file (.def) is automatically changed to the correct syntax.