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Click Image for Animation |
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SIMULATION TECHNIQUE
The oven geometry is a simple cylinder meshed as continuous rings. To simulate movement, the frame of reference is shifted so the board is held in place and the oven moves past it. For this reason the cylinder is much longer than the actual oven to allow for heat to radiate during approach and departure. |
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Curve Set-Up in RadTherm |
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Microsoft Excel Spreadsheet |
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| The movement is produced simply by assigning each ring of elements to a separate part and then turning the temperatures of the rings on and off. In this way the view factors are only computed once and a very quick simulation is attainable. To simplify the curve creation and timing for each ring, we used a simple Microsoft Excel Spreadsheet to create a text file with the information. RadTherm directly imports these curves and each is manually assigned to the appropriate ring. |
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RESULTS
Note: the results shown below have been manipulated to reflect the frame of reference of the observer. |
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| Results: Picture (40K) |
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Results: Animation (512K) |
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