# Turbocharger design & optimisation

Internal DPM development brief. Current status and results to be supplied.

## Brief
Define a bounded turbocharger component or flow-path study. The first package should compare a traceable baseline and design variants, then use non-rotating geometry, fit or cold-flow prototypes to check the questions those models can answer.

## Requirements to confirm
- Confirm the selected component, geometry rights and baseline data.
- Define operating points, fluid conditions, envelope and interface constraints.
- Choose the comparison metrics before optimisation and record the analysis model and mesh or convergence evidence.
- Treat rotating functional hardware and high-speed performance testing as a separately engineered and authorised package.

## Design and iteration
- Establish baseline geometry, operating conditions and a repeatable comparison method.
- Create a small, named set of design variants and record the parameter changes.
- Compare predicted flow behaviour with consistent boundary conditions and an uncertainty discussion.
- Build non-rotating prototypes or test fixtures and compare measured evidence with the claims it can support.

## Manufacture
Use in-house polymer or resin prototypes for geometry, assembly and suitable non-rotating tests. Consider partner machining, fabrication and specialist balancing or test services only where the later scope requires them. A printed fit model is not evidence of a service-ready rotating component.

## Evidence to collect
- Predicted performance at defined comparison points, labelled as simulation.
- Dimensions, clearances and assembly fit from physical prototypes.
- Measured flow or pressure results only when a suitable calibrated test setup is available.
- Difference between prediction and measurement, including test limitations.
- Iteration time and manufacturing effort recorded from actual work.

## Publication record
Project owner: pending
Current stage: pending
Baseline revision: pending
Design revision: pending
Manufacturing records: pending
Predicted results: pending
Measured results: pending
Measurement uncertainty: pending
Reviewed by/date: pending
DBOS contribution: pending
In-house operations: pending
Partner operations: pending
Images and film references: pending