Unlike "Zephir", I do not think this research is totally useless.
I will give you two examples:
If we manage to generate small stable plasmoids in a deuterated liquid by cavitation under a magnetic field we obtain a liquid that contains some kind of small "tokamaks freestanding", whose life is low, but still very large compared at the speeds of nuclear reactions.
Typically, I suggested that we can expect a life of about a tenth of a second.
If this liquid is compressed, for example by means of a shock wave, it is probable that the plasmoids will compress more than the liquid, and that the temperature, the electric current and the magnetic field will increase.
It is not impossible that we approach the criterion of Lawson.
My results are not spectacular: not much neutron or gammas with tap water and 100 bars of pressure. Little light and no more light under magnetic field.
Do not be discouraged, they are inexpensive experiments and I suggest that they be replicated and improved in better equipped laboratories.
I suggest using high pressure pumps to cut steel by water jet (more than 1000 bars) Our Russian friends have shown that fission products and neutrons appeared if uranium nitrate was added in water and that the fluid is cavited through an orifice in a sapphire.
Picture: cavitation bubbles in the optical cavity between the poles of the magnet.