How is the lift formula in aerodynamics derived?

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SUMMARY

The lift formula in aerodynamics, expressed as F = Lift coefficient x Area x Air density x Velocity squared, is derived primarily through empirical data rather than a singular physical law. The lift coefficient is a crucial proportionality constant determined experimentally, numerically, or occasionally analytically. This formula serves as a simplified model, while more complex physical equations exist for lift and drag. Understanding this derivation is essential for grasping the fundamentals of aerodynamics.

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  • Understanding of basic aerodynamics principles
  • Familiarity with empirical data analysis
  • Knowledge of Buckingham's Pi Theorem
  • Basic physics concepts related to forces and motion
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  • Study Buckingham's Pi Theorem and its applications in fluid dynamics
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ykobe23
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I'm currently doing the IB (equivalent to A levels) and we have to do a research on a subject and i took aerodynamics, specifically lift and can someone explain to me how the lift formula(F= Lift coeffecient x area x air density x velocity squared ) is found ?

Thank you very much
 
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It is found simply through empirical data. The lift coefficient is a proportionality constant that has to be found experimentally, numerically or, rarely, analytically. It isn't a robust physical formula. The more physical formulae for lift and drag are much more complicated.
 
ykobe23 said:
(F= Lift coeffecient x area x air density x velocity squared ) is found ?

Thank you very much

Search for Buckingham's Pi Theorem.
 
thanks very much !
 

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