| Author | Message | ||
     Mongi Mansouri (mongim_pde) Member Username: mongim_pde Post Number: 18 Registered: 11-2003 |
Hi all... I am using FPDE 2.22. I am trying to implement a simple BC in a heat transfer problem. Basically a convective BC at the gap between two surfaces close to each other. This BC at surface 1 is stated: k.dTemp/dn + h(Temp1-Temp2) = 0 where Temp1 and Temp2 are the local temperatures of surfaces 1 and 2, and h is the convection coefficient in the gap. in FPDE language this is: natural(Temp) = -h(Temp1-Temp2) The problem is that I do not know how, in FlexPDE, to get the local nodal temperatures of surface 2 in the case of the above BC. Any suggestions? Please help. Thank you. /Mongi M. | ||
| Mongi Mansouri (mongim_pde) Member Username: mongim_pde Post Number: 19 Registered: 11-2003 |
A Follow-up: I figured out an answer to this question by the use of the upulse(a,b) function in FlexPDE, where a, b are negative, positive arguments that are calculated in terms of the spatial postion of surface 2 and nodal temperature Temp2 of surface 2 is calculated using the uplse() nodal values. If someone knows of a better way to do this, I 'd like to know. Thank you. /Mongi M. |