Drag in single fluid flows
Abstract
Aspects of drag in single-fluid flows are discussed. Frictional resistance in pipes and on a plane surface is analytically examined. Resistances of bodies moving through a fluid are addressed, including form drag and skin friction, drag on a sphere, and the effects of Mach number and fluid turbulence, of acceleration, rotation, and roughness, and of blockage ratio. The drag of a circular cylinder and the drag coefficient of particles with different shapes are considered. The analysis and determination of drag by analogy with mass transfer and vice-versa are discussed, addressing experimental methods for the determination of mass transfer coefficients, analogies between momentum and mass transfer, and drag analyses according to the distribution of local mass transfer coefficients.
- Publication:
-
Encyclopedia of Fluid Mechanics. Volume 1
- Pub Date:
- 1986
- Bibcode:
- 1986efm.....1..433K
- Keywords:
-
- Drag Coefficients;
- Flow Resistance;
- Fluid-Solid Interactions;
- Friction Drag;
- Circular Cylinders;
- Flat Surfaces;
- Mach Number;
- Mass Transfer;
- Momentum Transfer;
- Pipe Flow;
- Rotating Spheres;
- Skin Friction;
- Spheres;
- Surface Roughness Effects;
- Turbulence Effects;
- Fluid Mechanics and Heat Transfer