Structure for the Friction Surface tuple = ("Name of Surface", "Value"). "Name of surface defines the name of the surface in which the data should be applied. The "Value" must be be a JSON String dictionary. @section jsonStringSurface JSON String Dictionary If "Value" is a JSON string dictionary (eg. "Value" = {"BL_Transition": 0.1}) the following keywords ( = default values) may be used: <ul> <li> <B>groupName = "(no default)"</B> </li> <br> Single or list of <em>capsType</em> names used to define the surface (e.g. "Name1" or ["Name1","Name2",...]. If no groupName variable is provided an attempted will be made to use the tuple name instead; </ul> <ul> <li> <B>BL_Transition = NULL</B> </li> <br> Specify transition location in range [0-1] for the surface. Defaults to global BL_Transition input. </ul> \iline 860 <ul> <li> <B>TwTaw = 1.0</B> </li> <br> Tw/Taw, the wall temperature ratio. </ul> \iline 876 @section keyStringVLMSurface Single Value String If "Value" is a single string the following options maybe used:

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