Development of laminar jet flows with zero excess impulse (Q761134)

In the present paper, the method of asymptotic expansions is used on the basis of the boundary layer equations to solve non self-similar problems of the development of laminar jet flows of a viscous incompressible fluid with zero excess impulse. The obtained solution takes into account the influence of the details of the source (finite size of the body and its geometry) and the value of the Prandtl number on the velocity and temperature distribution. In the case of a laminar axisymmetric wake, a self-similar solution is obtained to the thermal problem, the solution being valid in a wide range of Prandtl numbers.