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              FAQ: How do I avoid Left-Handed faces in Fluent?  
            Question  
             How do I avoid Left-Handed faces in Fluent?
                          
	    Answer  
             You need to make Harpoon export double precision files. In the 
                        export preferences, change "single" to "double" 
                        for Export precision. This must be done before creating 
                        a mesh.  
                        You will also need to run Fluent in double precision 
                        Left-handed faces often occur when two dimensions 
                        are large compared to the third. Modelling cities and 
                        landscapes can produce this problem in single precision. 
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