Computational World...

After the late 1800's and 1900's, A huge development in the technologies has been observed and all the models, designs and analysis are performed by various computational approaches using various pre-processing and post-processing software's. Computational Fluid Dynamics is one of the most rich and diverse subject and also as emerged as a major component for determining various parameters and flow over the airfoils. In the same, the development of advanced computers and numerical algorithms has been increased gradually. These type of technologies made people to work on various airfoils computationally without many empirical forms or experimental forms. These type of computational approaches reduces the stress of an individual,  Cost and time of work can be reduced, changes can be done easily for obtaining accuracy and many more advantages have been observed in computational approaches.

. As the physical and Chemical models of the flow physics are mainly responsible in CFD for solving basic and applied scientific/engineering problems, Once these Physical and Chemical models are known, the analysis and determination of various parameters is a very simple task.

After these Computational Approaches came into existence, Optimization of airfoils have been observed for obtaining high-lift airfoils. Various approaches have been investigated for increasing the efficiency of the airfoils.So we can say that, the main idea of airfoils and its construction has been derived from many empirical operations and experimental methods. Then, people started to increase the efficiency of the work which has been derived in the late 1800's and 1920's.