How Do You Calculate Static Pressure on Hypersonic Vehicles?

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SUMMARY

The calculation of static pressure on hypersonic vehicles can be effectively performed using oblique shock relations. Given the inclination angle of the surface and the aerodynamic characteristics of stage 1, one can derive static pressure by applying the appropriate equations. Utilizing a calorically perfect gas assumption with gamma set to 1.4 is essential for accurate results. The incoming angle of attack and Mach number are critical parameters for generating the necessary information for static pressure calculations.

PREREQUISITES
  • Understanding of oblique shock relations
  • Familiarity with hypersonic vehicle aerodynamics
  • Knowledge of calorically perfect gas assumptions
  • Proficiency in calculating Mach number and angle of attack
NEXT STEPS
  • Study the equations governing oblique shock waves
  • Research the impact of angle of attack on hypersonic flow
  • Learn about the properties of calorically perfect gases in aerodynamics
  • Explore computational fluid dynamics (CFD) tools for hypersonic simulations
USEFUL FOR

Aerospace engineers, students in fluid dynamics, and researchers focused on hypersonic vehicle design and performance analysis will benefit from this discussion.

roldy
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I'm confused about finding the static pressure on a surface of a hypersonic vehicle.

I know the inclination angle of surface 1 relative to the horizontal and I know all the aerodynamic characteristics of stage 1. With a calorically perfect gas assumption, gamma=1.4. I'm getting a little confused with static pressure and stagnation pressure. What is the appropriate equation to use?
 

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Just use the oblique shock relations. On the body you have pictured you have straight sections, so you don't need anything more complicated. If you know the incoming angle of attack and Mach number, you can generate all the information you need for static pressure using the oblique shock equations.
 

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