Temperature Control Question
I'm a relative novice to COMSOL, and am attempting to heat a block to a given setpoint. I'm using the heat source Total Power bit to turn a heater on, then monitoring the max temp of the block on...
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Hi, Can you try with adding a heaviside function as below: 1500*flc2hs(150-maxop1(T),5) You can find the meaning of flc2hs in COMSOL manual. The value 5 above is 5 degree Celsius but it is better to...
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Hello, I have done a PID heater controller based on the library tutorial PID. It works quite well, but I can't limit the input power to a certain value, meaning that my resistor temperature can jump to...
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Hi Suresh, Thanks for the suggestion - I plugged in the heavyside function(s) but it's not really controlling, it just ramps to a steady state value based on how much cooling is applied. Less cooling =...
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Hi, Ok, I see your point. This issue is more to do with controls, such as the PID approach for stability. Perhaps you could look at Julien's mph file above, I don't have appropriate license. I can only...
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Dear colleague, I desire to implement a temperature control in my 3D MODEL. It consists the physics coupling between heat transfer and electric currents. The electric potential V is controlled such as...
View ArticleRe: Temperature Control Question
Hello Cleber, We of course first suggest that you upgrade to the latest version, COMSOL Multiphysics 5.1, available to all on-subscription customers. Once you've done so, you'll find the following...
View ArticleRe: Temperature Control Question
Dear colleague, Does the version 4.0 not solve the control temperature/electric potential?? -- Cleber da Silva Pinheiro
View ArticleRe: Temperature Control Question
Dear Cleber, My comment was more of a general encouragement to upgrade to the latest version. It has been several years (and some minor revisions to the GUI) since version 4.0, but you should be able...
View ArticleTemperature Control Question
I'm a relative novice to COMSOL, and am attempting to heat a block to a given setpoint. I'm using the heat source Total Power bit to turn a heater on, then monitoring the max temp of the block on...
View ArticleRe: Temperature Control Question
Hi, Can you try with adding a heaviside function as below: 1500*flc2hs(150-maxop1(T),5) You can find the meaning of flc2hs in COMSOL manual. The value 5 above is 5 degree Celsius but it is better to...
View ArticleRe: Temperature Control Question
Hello, I have done a PID heater controller based on the library tutorial PID. It works quite well, but I can't limit the input power to a certain value, meaning that my resistor temperature can jump to...
View ArticleRe: Temperature Control Question
Hi Suresh, Thanks for the suggestion - I plugged in the heavyside function(s) but it's not really controlling, it just ramps to a steady state value based on how much cooling is applied. Less cooling =...
View ArticleRe: Temperature Control Question
Hi, Ok, I see your point. This issue is more to do with controls, such as the PID approach for stability. Perhaps you could look at Julien's mph file above, I don't have appropriate license. I can only...
View ArticleRe: Temperature Control Question
Dear colleague, I desire to implement a temperature control in my 3D MODEL. It consists the physics coupling between heat transfer and electric currents. The electric potential V is controlled such as...
View ArticleRe: Temperature Control Question
Hello Cleber, We of course first suggest that you upgrade to the latest version, COMSOL Multiphysics 5.1, available to all on-subscription customers. Once you've done so, you'll find the following...
View ArticleRe: Temperature Control Question
Dear colleague, Does the version 4.0 not solve the control temperature/electric potential?? -- Cleber da Silva Pinheiro
View ArticleRe: Temperature Control Question
Dear Cleber, My comment was more of a general encouragement to upgrade to the latest version. It has been several years (and some minor revisions to the GUI) since version 4.0, but you should be able...
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