Method example / Process engineering

Flow-oriented design of a compact bend

CFD and adjoint optimization were used to develop a compact flow turn within defined packaging constraints.

CFD result for an optimized pipe bend — Process & plant engineering · CFD simulation · Multiphysics & optimization

Industry: Process & plant engineering
Services: CFD simulation · Multiphysics & optimization

Engineering question

The flow had to turn within a small space while keeping pressure loss and outlet distribution under design control.

Model & approach

Define the baseline geometry and permissible design space
Evaluate the flow field and objective function with CFD
Use adjoint geometry sensitivities to guide the iteration

Boundary conditions

A 90-degree change in flow direction
Restricted package space and neighboring obstructions
Pressure loss or mass-flow distribution as possible objectives

Results of the assessment

The sensitivity field identified the wall regions that most affected the objective.
Geometry changes could be derived within the defined design space.

Engineering consequence

The adjoint result guided the shape iteration before detailed engineering development.

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