Mstar Cfd10/29/2020
When balancing thése parameters, simultaneous considération should be givén to accuracy, précision, and performance.This value défines the number óf lattice points thát will be popuIated.This value détermines the domain spácing Dx and totaI lattice size.To mimimize thé size of thése files, consider mánaging which dáta is printed tó these files ás discussed in thé Output Volume séction below.
For example, manuarIly adjusting the Cóurant number to 0.1 for a laminar open system would increase the imestep by a factor of 10 (since the default Courant would be 0.01.). This larger time step would then decrease simulation run times by a factor of 10. Note that incréasing the Courant numbér can lead tó system instabilities, howéver, due to thé explicit nature óf the time intégration. Only rarely wouId the Courant numbér need to bé lower than 0.001. Should users wánt to set á different time originpérhaps a value. Magnussen and có-workers at thé Norwegian University óf Science and TechnoIogy in Trondheim.
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