Drag and lift are the forces which act on a body moving through a fluid, or on a stationary object in a flowing fluid. We call these aerodynamic forces (if the fluid is a gas) or hydrodynamic forces ...

Wheat fields will be firming up across Ohio and spring top-dressing with nitrogen fertilizer will soon start in the most ...

IN conditions of turbulent flow, relatively low concentrations of linear, high-molecular weight polymers can greatly reduce the frictional drag of a liquid 1–4. By measuring the pressure drop ...