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Select a Gas constant type — Specific gas constant Rs (SI unit: J/(kg·K)) or Mean molar mass Mn (SI unit: kg/mol). The default setting is to use the property value From material. For User defined enter another value or expression for either material property. For Mean molar mass the universal gas constant R = 8.314 J/(mol·K), which is a built-in physical constant, is also used.
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From the Specify Cp or γ list, select Heat capacity at constant pressure Cp (SI unit: J/(kg·K)) or Ratio of specific heats γ (dimensionless). The default setting is to use the property value From material. For User defined enter another value or expression for either material property.
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For Automatic this limit is automatically evaluated as:
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For Automatic the wall distance is automatically evaluated to one tenth of the shortest side of the geometry bounding box. This is usually quite accurate but it can sometimes give a too high value if the geometry consists of several slim entities. In such cases, define the reference length scale manually.
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For Manual it defines a different value or expression for the length scale. The default is 1 m.
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