Chapter 3 PRESSURE AND FLUID STATICS - Department of ...

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When the center of gravity G of an immersed neutrally buoyant body is not vertically aligned with the center of buoyancy B of the body, it is not in an equilibrium state and would rotate to its stable state, even without any disturbance. A ball in a trough between two hills is stable for small disturbances, but unstable for large disturbances. 52
A floating body is stable if the body is bottom-heavy and thus the center of gravity G is below the centroid B of the body, or if the metacenter M is above point G. However, the body is unstable if point M is below point G. Metacentric height GM: The distance between the center of gravity G and the metacenter M—the intersection point of the lines of action of the buoyant force through the body before and after rotation. The length of the metacentric height GM above G is a measure of the stability: the larger it is, the more stable is the floating body. 53
Page 1 and 2: Fluid Mechanics: Fundamentals and A
Page 3 and 4: Objectives • Determine the variat
Page 5: Absolute pressure: The actual press
Page 8 and 9: Variation of Pressure with Depth Wh
Page 10 and 11: The pressure is the same at all poi
Page 12 and 13: 3-2 ■ PRESSURE MEASUREMENT DEVICE
Page 18 and 19: The variation of gage pressure with
Page 24 and 25: Other Pressure Measurement Devices
Page 26 and 27: 3-3 ■ INTRODUCTION TO FLUID STATI
Page 28 and 29: Hydrostatic force on an inclined pl
Page 30 and 31: The centroid and the centroidal mom
Page 32 and 33: Special Case: Submerged Rectangular
Page 34: Hydrostatic force acting on the top
Page 38 and 39: When a curved surface is above the
Page 41: Schematic for Example 3-9 and the f
Page 44 and 45: The buoyant forces acting on a soli
Page 46: The altitude of a hot air balloon i
Page 51: A floating body possesses vertical
Page 56 and 57: Special Case 1: Fluids at Rest For
Page 58 and 59: Acceleration on a Straight Path Rig
Page 62: Rotation in a Cylindrical Container
Page 65: Note that at a fixed radius, the pr

Chapter 3 PRESSURE AND FLUID STATICS - Department of ...

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