Question

In steady state heat transfer finite element model [K+H]*{T}={Q}*{P} if convective boundary conditions are neglected then which option is applicable?

(a) K=0

(b) H=0

(c) Q=0

(d) T=0

This question was addressed to me during an interview.

My question is from Single Variable Problems topic in chapter Single Variable Problems of Finite Element Method

Answer 1

Correct choice is (b) H=0

The explanation is: When convective boundary conditions are neglected in the steady state heat transfer finite element model [K+H]*{T}={Q}*{P}, it reduces to [K]*{T}={Q} form. The terms H and P which are related to convection become zero.