DEVELOPMENT OF AN ALGORITHM FOR GENERATING A SUBMERGED JET WITH SPECIFIED VELOCITY PROFILE CHARACTERISTICS

An algorithm for controlling submerged jets is developed to calculate the geometry of a jet generator, which provides a velocity profile and (or) the required characteristics of its linear instability in the initial section of the jet. A class of jet generators is considered, whose geometry is similar to the geometry of the device manufactured at the Institute of Mechanics of the Moscow State University. The control algorithm is based on the gradient descent method for the minimization of the functional that relates the parameterization of the forming device geometry and the characteristics of the velocity profile, which is formed by this device. The algorithm operation is tested on the example of a functional describing the deviations of the jet velocity profile from the set one.