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Encyclopedia

Knowledge card

Dimensionless ODE System

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

Symbol

ODE

The reduced equations in η: a third-order momentum ODE coupled to a second-order energy ODE, with their transformed boundary conditions.

Mathematics

Essence

S1A third-order momentum ODE for f coupled to a second-order energy ODE for θ.

Dimension I

Definition

What it is — and what it is not

What it is
  • S2The reduced ordinary differential equations in η with their boundary conditions.

Dimension II

In practice

How to deal with it

Consequences
  • S3Because the two ODEs share f and θ, they must be solved simultaneously as one BVP.

Sub-topics 3

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