QUESTION - 4: You are conducting an experiment using a Pitot-static tube to measure the airflow velocity over a model wing. Describe the calibration process and how you would ensure that your measurements are free from errors.

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QUESTION - 4: You are conducting an experiment using a Pitot-static tube to measure the airflow velocity over a model wing. Describe the calibration process and how you would ensure that your measurements are free from errors.

Answer 1

To ensure accurate measurements with a Pitot-static tube, follow these calibration and error-reduction steps:1. **Calibration Process:** - **Static Pressure Calibration:** Use a known static pressure source to verify the static port readings. Adjust if necessary to match the reference. - **Dynamic Pressure Calibration:** Connect the Pitot tube to a wind tunnel or airflow source with a known velocity. Measure the dynamic pressure and compare it to theoretical values calculated using Bernoulli's equation. Adjust the instrument as needed.2. **Error Reduction:** - **Alignment:** Ensure the Pitot-static tube is aligned correctly with the airflow to avoid angular errors. - **Temperature and Density Corrections:** Account for variations in air temperature and density, which can affect pressure readings. - **Leak Checks:** Regularly inspect the system for leaks that could alter pressure readings. - **Zeroing Instruments:** Before each measurement session, zero the pressure transducers to eliminate offset errors. - **Environmental Conditions:** Conduct measurements in stable environmental conditions to minimize fluctuations in readings.By following these steps, you can ensure that your Pitot-static tube measurements are accurate and reliable.

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QUESTION - 4: You are conducting an experiment using a Pitot-static tube to measure the airflow velocity over a model wing. Describe the calibration process and how you would ensure that your measurements are free from errors.

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