Handbook 4. 1CWK50 The Brief

Handbook 4. 1CWK50 The Brief

The Brief You are working as the Technical Engineering Advisor for a large DIY store. The payload of the vehicle is required to take 62 pallets of mixed palletised goods for delivery in the UK only. Goods are stored in central England at Coventry and the whole of UK is stocked from this hub. You are required to analyse the current vehicle specification to produce a vehicle body system that is aerodynamically optimised for both outward and the return journey .Use the provided CAD file and manufacturer`s specification to establish your baseline models and progress your simulations.

Requirements

In your investigations, you should use the following assumptions:

1. No cross flow velocity component

2. Yaw angle is zero

3. Maximum legal speed 90kph

4. The simulation can be assumed to be steady-state i.e. no acceleration

5. Standard temperature and pressure conditions are considered for ambient atmosphere

6. The fluid is dry air zero moisture

Determine:

Establish appropriate fluid domain and flow parameters and consider one or more of the following aspects:

1. The front and rear shape of the vehicle

2. The prime driver compartment and its interaction with the vehicle load

3. Any other aero aid devices that can be fitted that do not affect the legal compliance or load carrying capabilities of the combination

4. Any other modification that could be made to the outfit Values for the lift and drag should be calculated using different Reynolds numbers and appropriate analysis.

Evaluate:

Your aim is to create an aerodynamic optimised body system for both outward and return journeys performance, thus:

reducing fuel consumption

minimising the vehicle`s environmental impact

reducing the overall operating cost