What happens to the pressure within a fluid as its velocity increases

The pressure within a fluid as the velocity increase the pressure would build up first and when there is no room and too much air the pressure of the fluid would increase and exploded. If you know what I mean. But when the pressure get to it high petitional that it can't go no where that's when it goes away by exploding.

Three reasons of the deaths of native americans: new illnesses that their immune systems couldn't cope with. genocides so the settlers could have the good land.starvation from lack of rations and poor infertile land on resevations

Ithink its false. hope this : )