SUMMARY
The discussion focuses on the behavior of barometric altimeters in high acceleration flow, particularly in subsonic conditions. It is established that the readings of a barometric altimeter can be influenced by horizontal pressure gradients, especially when a missile accelerates horizontally. The placement of static ports is critical; they must be positioned to ensure airflow velocity matches the freestream to provide accurate readings. Computational Fluid Dynamics (CFD) modeling is essential for understanding airflow disturbances around airframes and calibrating static port data against clean reference data.
PREREQUISITES
- Understanding of barometric altimeter functionality
- Knowledge of static port placement and its impact on airflow
- Familiarity with Computational Fluid Dynamics (CFD) modeling
- Basic principles of aerodynamics in subsonic flight
NEXT STEPS
- Research barometric altimeter calibration techniques
- Explore the principles of airflow around airframes using CFD
- Learn about the design and placement of static ports in aerospace engineering
- Investigate the effects of horizontal pressure gradients on flight instruments
USEFUL FOR
Aerospace engineers, flight test engineers, and anyone involved in the design and calibration of flight instrumentation, particularly in high-speed and high-acceleration environments.