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discontinuity boundary conditions
Posted Apr 20, 2012, 5:35 a.m. EDT Heat Transfer & Phase Change Version 3.5a 1 Reply
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Hi , everyone:
I want to model a reactor with the catalyst in the middle of the reactor, to utilize the energy released by the reaction, I want to withdraw part of the hot gas from the center of the reactor.
To realize this idea, I used the discontinuity boundary condition to reprent hot gas withdrawal , specifically, I set the inward flux at the interior boundary some of the conductive heat flux. but the results show that in this part, the temperature drops a lot, as you konw, this is not right, heat removal can not derease the temperature.
there must be somethig wrong with my settings, can anyone help me?
Any suggestion is greatly appriciated!
your Z LI
I want to model a reactor with the catalyst in the middle of the reactor, to utilize the energy released by the reaction, I want to withdraw part of the hot gas from the center of the reactor.
To realize this idea, I used the discontinuity boundary condition to reprent hot gas withdrawal , specifically, I set the inward flux at the interior boundary some of the conductive heat flux. but the results show that in this part, the temperature drops a lot, as you konw, this is not right, heat removal can not derease the temperature.
there must be somethig wrong with my settings, can anyone help me?
Any suggestion is greatly appriciated!
your Z LI
1 Reply Last Post Apr 20, 2012, 5:45 a.m. EDT
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Posted:
1 decade ago
additions:
the feed velocity is changed with the amout of the gas withdrawn, besides, the temperature after the interior boundary conditions increase, which is abnormal.
these phenomenon confuse me a lot.
Is the method using a negitive inward heat flux to realize the hot gas withdrawal right?
Can anyone have another idea?
the feed velocity is changed with the amout of the gas withdrawn, besides, the temperature after the interior boundary conditions increase, which is abnormal.
these phenomenon confuse me a lot.
Is the method using a negitive inward heat flux to realize the hot gas withdrawal right?
Can anyone have another idea?