Using a virtual model to test changes in the shape of propellers on a submarine before creating a physical model has several advantages, including:
Cost: Creating physical models can be expensive, especially if multiple iterations are needed to find the optimal design. Using a virtual model allows for multiple design changes at minimal cost.
Time: Creating physical models also takes time. With a virtual model, Francis can quickly test and compare different propeller designs to see which one performs the best.
Safety: Testing a physical model of a submarine can be dangerous and difficult to do without specialized equipment and facilities. A virtual model eliminates these safety concerns.
Flexibility: With a virtual model, Francis can easily modify and adjust different variables to see how they affect the performance of the propellers. This flexibility is much more difficult to achieve with physical models.
Accuracy: Virtual models can provide accurate simulations of real-world conditions, allowing Francis to see how different shapes of propellers will affect the speed and maneuverability of the submarine in different scenarios.
Overall, using a virtual model to test the changes before creating a physical model allows Francis to save time, money, and improve accuracy, and flexibility in his research.