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simulate optical energy incident on a thin film

Posted Jul 28, 2011, 10:16 a.m. EDT Heat Transfer & Phase Change, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization Version 4.2 0 Replies

Patrick Kirby
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Hello one and all,

I have built a model to simulate optical energy incident on a thin film with the goal of simulating the heat transfer and temperature gradients on the surface and across the film. The film is contained within a glass vessel filled with air at low pressure. The film is suspended by trusses.

The heat transfer portion of the simulation works appropriately, however the Port established for the incident EM energy does not. When I run the simulation only a small area of the film is illuminated and temperature gradients are confined to that area. This does not change when I change the size of the boundary selected for the port.

My question is regarding the port. How can I expand the area of illumination through managing the port. I have tried varying the size of the port and this does nothing. I vary the input power and change the parameters of the E field. When I change the scale of the model for greater exposure, it still runs, but the temperature on the film does not change beyond the initial value. The parameters that I have used for the port are as follows:

Pin = 500W,
Ex = 0, Ey = 0, Ez = 1000*sin(1/700e-9)*z (the wave is to propagate in the Z direction)
Propagation constant = 0 1/m

Any help on managing the port and resolving this issue would be greatly appreciated.

Thanks

Pat
0 Replies Last Post Jul 28, 2011, 10:16 a.m. EDT
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