 ##  [Boundary Condition](/boundary-condition) 

  ##  [Boundary Condition](https://engineering.quantumdictionary.io/boundary-condition-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering &amp; Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A prescribed constraint or specification of field variables (values or relations among values) applied on the boundary of a spatial domain that, together with governing equations, defines a well‑posed physical or numerical problem; includes value (Dirichlet), flux/traction (Neumann) and mixed/Robin types and their appropriate mathematical statements for the problem class.