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Calculation of microwave-heated potatoes
Posted Jan 6, 2020, 9:05 p.m. EST Electromagnetic Heating 1 Reply
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Microwave-heated potatoes are calculated using an electromagnetic wave heating module. Frequency-domain calculations and transient calculations are used to study electromagnetic waves and solid heating, respectively. Among them, the frequency domain calculation is used to study the changes of electromagnetic waves. However, due to the nature of frequency-domain calculations, it is not possible to observe a microwave electric field diagram that varies with reaction time in the calculation results. Therefore, I want to know how to observe the change of microwave electric field with response time in the calculation results of this case. The expected result is similar to the instantaneous change in temperature with reaction time in the transient calculation results. Thank you for your discussion.
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You have to add transient EM physics then solve the EM in time domain with time step of 1/10 of billionth of seconds of time step as the frequency is 2.45 GHz. However this will take forever to solve it. Finally you take time averge of the power dissipiation over a cycle. This time avg value and frequency domain solution will have same vlaues of power dissipiation.