Group analysis of flat nonstationary boundary layer equations
Group properties of the nonstationary turbulent boundary layer equations are investigated. Operators of the obtained kernel of the basic Lie algebras depend on two arbitrary functions that is why this kernel is infinitely dimensional. The special representations of the turbulent friction function are found. Operators increasing the kernel of the basic Lie algebras and those which satisfy the governing system of equations are constructed according to special representations of the turbulent friction function.