ESDU 70015
Fluid forces and moments on flat plates.
Amended in Release 2024-03 (Jul 2024).
Abstract:
ESDU 70015 gives information on the variation with incidence of the normal forces and centre of pressure positions for thin plates of various shapes. The data are presented in terms of non-dimensional mean force coefficients. Within the accuracy of these data, tangential forces due to surface friction may be neglected at all incidences. For plates normal to the flow, information is also given on the effects of turbulence and Reynolds number and of perforating the plate and, for rectangular plates, the effects of mounting a plate on a surface and of a velocity profile in the flow are considered. The forces on pairs of identical plates, normal to the flow, are also given.Indexed under:
- Air Brakes
- Annular Plates
- Centre of Pressure
- Circular Plates
- Dive Brakes
- Elliptical Plates
- Normal Force
- Perforated Plates
- Pitching Moment
- Rectangular Plates
- Semi-Elliptical Plates
- Shear Flow
- Square Plates
- Triangular Plates
- Turbulence
- Velocity Profile
- Wind Speed
Details:
| Data Item ESDU 70015 | |
|---|---|
| Format: |
|
| Status: |
|
| Previous Releases: | |
| ISBN: |
|
The Data Item document you have requested is available only to subscribers.
- Subscribers login here.
- If you are not an ESDU subscriber find out how to subscribe.
The graphs listed below are available only to subscribers.
- Subscribers login here.
- If you are not an ESDU subscriber find out how to subscribe.
This Data Item contains 14 interactive graph(s) as listed below.
| Graph | Title |
|---|---|
| Figure 1 | CN for rectangular plates normal to uniform stream, Re > 103 |
| Figure 2 | Effect of Re on CN for flat plates normal to flow |
| Figure 3a | Effect of turbulence on CN |
| Figure 3b | Effect of turbulence on CN |
| Figure 4 | Normal force coefficient for two identical, thin plates in series, normal to flow, Re > 103 |
| Figure 5 | Normal force coefficient for uniformly perforated thin plates, normal to stream, Re > 103 |
| Figure 6 | Normal force coefficient for circular plates with a single central hole, normal to stream, Re > 103 |
| Figure 7a | Normal force coefficient for surface-mounted rectangular plates in uniform flow |
| Figure 7b | Normal force coefficient for surface-mounted rectangular plates in uniform flow |
| Figure 8 | Variation of CN with b/c and α for all plate shapes, b/c ≥ 2 |
| Figure 9 | Variation of centre of pressure position with b/c and α, rectangular and elliptical plates, b/c ≥ 2 |
| Figure 10 | Variation of CN with b/c and α for all plate shapes, b/c ≤ 2 |
| Figure 11 | Variation of centre of pressure position with b/c and α, rectangular and elliptical plates, b/c ≤ 2 |
| Figure 13 | Centre of pressure position for triangular plate with apex leading |