On Mon, Jul 23, 2018 at 1:06 PM, Drew Davidson wrote:
>
> 'dx' is actually the thickness of the thermal contact region. It is not the
> volume of the cell. If it were a volume, the ratio dx/mesh._cellDistances
> would not be dimensionless. I was seeking a thermal contact region of zero
>
Hello Dr. Wheeler,
'dx' is actually the thickness of the thermal contact region. It is not
the volume of the cell. If it were a volume, the ratio
dx/mesh._cellDistances would not be dimensionless. I was seeking a thermal
contact region of zero thickness (dx=0), giving a true thermal contact
On Tue, Jul 17, 2018 at 4:43 PM, Drew Davidson wrote:
>
> I still need FiPy code for:
>
>
> dAP1/(dAP1+dAP2)
>
>
> and
>
>
> dAP2/(dAP1+dAP2)
>
>
> where dAP1 and dAP2 were distances from cell center to cell face for cells
> on either side of the interface. If these FiPy expressions are
Hello,
I continued to stare at
https://www.mail-archive.com/fipy@nist.gov/msg02641.html.
I realized Keff must be effective thermal conductivity as described in:
Salazar, Agust n. “On Thermal Diffusivity.” *European Journal of Physics*
24, no. 4 (July 1, 2003): 351–58.
I think you can do this by aligning the mesh with the contact region
and specifying the diffusion coefficient at the contact faces.
On Thu, Jul 12, 2018 at 12:28 PM, Drew Davidson wrote:
> Hello,
>
>
> I’m sorry for not being more specific. I was trying to incorporate
>
Hello,
I’m sorry for not being more specific. I was trying to incorporate
https://www.mail-archive.com/fipy@nist.gov/msg02626.html by reference.
Sketch of problem:
(1) Region 1 --* thermal contact resistance *
-- Region 2 (2)
Temperature at (1)
On Wed, Jul 11, 2018 at 7:00 PM, Drew Davidson wrote:
>
> 1. Transient heat conduction rather than steady state. Same boundary
> conditions but initial condition can be zero temperature eveywhere.
Add a TransientTerm to the equation and step through the solution with
time steps and sweeps if
On May 16, 2013, at 1:23 PM, Daniel Wheeler daniel.wheel...@gmail.com wrote:
I believe the correct diffusion coefficient across the face that approximates
a thin layer is
D = Kc * (1 / (epsilon + (1 - epsilon) * D_ratio))
where
D_ratio = Kc / 2 * (1 / K1 + 1 / K2)
and
Hi,
Thanks for your proposed 1D solution. It bears part of the correct
solution which should look like :
from X=-L/2 the temperature increases to 2.5 deg C at X = 0; then there
is a temperature jump to 3.5 deg C and the temperature increases
linearly to 6 deg C at the X=L/2 boundary.
So I'm a
On May 16, 2013, at 6:39 AM, Frederic Durodie frederic.duro...@googlemail.com
wrote:
So I'm a bit puzzled as to why for X from -L/2 to 0 the temperature is
0. : it should increase linearly to 2.5 deg C.
I suspect the problem is that divergence of the flux at the cell just left of
the
On Fri, May 10, 2013 at 2:11 AM, Frederic Durodie
frederic.duro...@googlemail.com wrote:
Dear FiPy users and developers,
could you help me with how to implement a thermal contact, hc
[W/(m^2.K)], between two regions : so there is like a discontinuity in
the temperature between the two
On May 10, 2013, at 2:11 AM, Frederic Durodie frederic.duro...@googlemail.com
wrote:
could you help me with how to implement a thermal contact, hc
[W/(m^2.K)], between two regions : so there is like a discontinuity in
the temperature between the two regions.
I don't know whether the
Dear FiPy users and developers,
could you help me with how to implement a thermal contact, hc
[W/(m^2.K)], between two regions : so there is like a discontinuity in
the temperature between the two regions.
In some cases I could implement it as a thin layer, dx [m], with a given
thermal diffusion
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