Thrust Submerged Surface

Reference data and engineering information about thrust submerged surface for miscellaneous applications.

thrustsubmergedsurface

Overview

Engineering reference data for Thrust Submerged Surface in miscellaneous.

$y = x \cdot k$

Multiply by conversion factor.

$y = y_1 + \frac{(x - x_1)(y_2 - y_1)}{x_2 - x_1}$

Estimate between two known points.

$p = \frac{\text{part}}{\text{whole}} \times 100\%$

Part as fraction of whole.

For a vertical surface with a linear pressure distribution, the average pressure acts at the centroid. The thrust force is:

$F = \frac{\rho g (h_t + h_b)}{2} A$

Calculation: For a surface 1 m wide and 2 m tall ( $h_t = 0$ m, $h_b = 2$ m) submerged in water ( $\rho = 1000\ \text{kg/m}^3$ ):

$F = \frac{1000 \times 9.81 \times (0 + 2)}{2} \times (1 \times 2) = 19620\ \text{N} = 19.6\ \text{kN}$

For a horizontal surface at constant depth, the pressure is uniform. The thrust force is:

$F = \rho g h_b A$

Calculation: For a bottom surface 1 m × 2 m submerged 1 m deep in water:

$F = 1000 \times 9.81 \times 1 \times (1 \times 2) = 19620\ \text{N} = 19.6\ \text{kN}$