yes,
positive pressure is present in areas where the convex part of the curved flow is towards the surface, like the area between bonnet and windshield in a car.
Negative pressure is there where the concave part of the curved flow is toward the surface, like where the windshield merges into the car's roof section.

By positioning air intake and air outlet in the appropriate regions, air flow between these two is the result. Due to the pressure gradient air will flow from the inlet to the outlet.

To create a low pressure, it is sufficient to angle part of the plane skin outward, like in louvres, and position the opening directly beneath, or behind the angled part. In front (upstream) of the louvre there is a small pressure zone, whereas at the apex of the louvre the pressure is quite low, which draws air through the opening.