Using gradients to construct cokriging approximation models for high-dimensional design optimization problems

this paper, and after an initial validation of the Cokriging method was conducted using simple oneand two-dimensional analytic functions, the technique was applied to a test case of the aerodynamic design of a low boom supersonic business jet. A three- dimensional Euler flow solver and an automatic mesh generation capability were used in the aerodynamic design of a supersonic business jet using a variety of geometric design parameters. This study identifies the efficiency, applicability, and limitations of the proposed method within a typical MDO process