Negative Buckling

  • Thread starter gte116r
  • Start date
  • #1
1
0
Under what conditions would negative buckling (B^2) be possible?
 

Answers and Replies

  • #2
QuantumPion
Science Advisor
Gold Member
902
42
Never. Buckling is a function of physical parameters (sphere radius, reaction cross-sections, diffusion coefficient), none of which can ever be negative.
 
  • #4
Astronuc
Staff Emeritus
Science Advisor
19,034
2,419
Buckling of a structure (mechanical analysis) is not the same as 'buckling' with respect to the neutron flux in a nuclear reactor.

I believe B2 < 0 implies the system is subscritical.

Let B2 = (νΣf - Σa)/D = (k - 1)/L2, then the buckling is negative if k < 1, or Σa > νΣf.

Ref: http://www.nuceng.ca/br_space/2015-..._flux_shape_in_various_reactor_geometries.pdf

Geometric buckling would not be negative.
 
Last edited:

Related Threads on Negative Buckling

Replies
2
Views
10K
Replies
3
Views
3K
Replies
4
Views
3K
Top