Chapter 12 - Aerodynamic Modelling

Abstract

Publisher Summary This chapter explores the aerodynamic modeling. The most difficult task for the flight dynamicist is the identification and quantification of the aerodynamic description of the aeroplane. Aerodynamic modelling is concerned with the development of mathematical models to describe the aerodynamic forces and moments acting on the airframe. The flow conditions around the airframe are generally complex, and thus the results obtained mathematically are not accurate. The most desirable objective is to devise the most accurate mathematical description of the airframe aerodynamics as can possibly be achieved. Unfortunately, even if accurate mathematical models can be devised they are often difficult to handle in an analytical context. Therefore, the solution is to seek simpler approximate aerodynamic models to solve the problem. A model that can be used in the equations of motion and represent the aerodynamic properties of the airframe with an acceptable degree of accuracy. This chapter is concerned with a preliminary review of, and introduction to aerodynamic stability and control derivatives at the simplest level consistent with the foregoing material.