Introduction to Aerodynamics Review

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(More customer reviews)What everyone needs to remember is that all of classical physics are based on Newton's Laws of Motion. While energy and momentum are different, they are intimately related. While you can change the momentum of an object, without changing its energy, and you can change the energy of an object without changing its momentum....You Need a source of energy to affect a change in momentum, and you need a source of momentum to change the energy. The total momentum of a gun/bullet system is zero. However, the bullet does not just fly out of the gun on its own. It takes the release of energy in the gunpowder to change the momentum of the BULLET, while the momentum of the gun changes in the opposite direction.
Mr Craig does a great job re-stating that Newtonian Mechanics is what physics is based on. Even in advanced engineering text, Bernoulli's Equation is derived from F=MA. F=MA applied to a fluid element leads to the Euler equation, which when integrated comes out to Bernoulli's equation. Again, in advanced engineering books it is often stated that Euler applied Newtonian Mechanics to fluids. Another thing to remember is that there is only two ways for a fluid medium to communicate forces to object imersed in it...pressure and friction. Regardless of how complex the flow field, these are the only two ways nature has of generating forces...Forces which obey obviously Newton's Laws. Craig at no time tries to discredit Bernoulli's Principle, all he does is show that its roots lay in Newtonian Mechanics, which is what advanced engineering text also do. This book is an excellent, common sense, practical approach to flight theory.

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INTRODUCTION TO AERODYNAMICS applies to existing need in the void between simplistic flight explanations for public school students and mathematically complex publications for aeronautical professionals.The 224 page book with 167 illustrations begins with applicable principles of Newtonian physics presented in aerodynamics context, and progresses into more aerodynamics in Newtonian terms of air mass interaction with aircraft surfaces. Airplanes, autogyros, helicopters and surface effect planes are all discussed.

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