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How to read a card

Every concept is a two-dimensional card. One axis defines it (what it is, what it is not, its essence, necessary conditions, common misconceptions); the other axis guides practice (how to deal with it, what to do, what to avoid, examples). Concepts form a tree, from broad ideas down to specific subtopics.

Knowledge card

Boundary Conditions

Mathematical Modelling — Fluid Dynamics & Heat TransferContinuum mechanics; boundary-layer similarity theory

Symbol

The wall and free-stream constraints that close the PDE system.

Dimension I

Definition

What it is — and what it is not

What it is: S1The constraints at the wall and in the free stream that make the PDE problem well posed.

Dimension II

In practice

How to deal with it

No practical guidance recorded yet.

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Encyclopedia

Boundary Conditions