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Creating temperature gradient
Posted 29 gen 2020, 05:45 GMT-5 Fluid & Heat 1 Reply
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Good day,
I am new with COMSOL and I am trying to create a model represeting water flowing in injection well. I build a model that consist of three domain: 1. Water, which is inside of the well 2. Well thickness 3. Earth Formation My question is, how to have temperature gradient that can represent earth temperature gradient, which is 25K/1000m?
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Hi Nico,
COMSOL's interface is interpreted, so you can type mathematical expressions in the text fields for your model inputs. For instance, if you want the temperature at a boundary to be Tsurf+.025[K/m]*z (where z is the vertical coordinate pointing into the ground and Tsurf is the temperature at ground level), you can simply type that mathematical expression directly in your Temperature boundary condition.
Best,
Jeff
-------------------Jeff Hiller