Аннотация:A study is made of the effect of three-dimensional, linearly coordinate-dependent velocity on the evolution of a magnetic field in a spiral turbulent conducting fluid. It is shown that, despite the presence of mean spirality, the introduction of such a velocity field leads to the asymptotic attenuation of the magnetic field. However, at a certain stage of field evolution, a temporary superexponential (exponent within an exponent) field amplification is possible.