Force - A push or pull acting upon a body. In a hydraulic cylinder, it is the product of the pressure on the fluid, multiplied by the effective area of the cylinder piston. It is measured in pounds or tons. Friction - The resistance to fluid flow in a hy- draulic system.
temperature increase The pressure of a contained sample of gas can be increased by increasing its temperature, or by decreasing its volume, or by injecting additional mas â¦ s into it.
Pressure gradient force extends from high pressure to low pressure. With high pressure systems, the value of air pressure along each isobar increases toward the center with each concentric line. The opposite is true for low pressure systems in that with each concentric line toward the center represents lower pressure.