Ultrasonic Transducer Help

I have a tank that is 15.14cm x 14.24cm x 91.44cm. What array of transducers and what generator would be ideal for this application? Thank you
View attachment 64870

What application? I mean, I can see you have a tank and such, and you want to put transducers in it, but if you wanted to make fog, vs something like "cleaning a circuit board" or "building an ultrasonic dish washer" - well, those would likely require a completely different designs (at least, I would think it would - but I don't design these things, I just rant about them)...