Accession Number:

ADA183531

Title:

High Reynolds Number Flows around Smooth and Rough Cylinders. Volume 1. Mean Surface Pressure Distribution.

Descriptive Note:

Final rept. 21 Aug 85-20 Aug 86,

Corporate Author:

PHYSICAL RESEARCH INC TORRANCE CA

Personal Author(s):

• Wang, Chiun
• Shih, W. C.

Report Date:

1987-03-02

Pagination or Media Count:

309.0

Abstract:

Nonsteady phenomena associated with flows around smooth and rough cylinders at high Reynolds numbers 0.3 to approx. 8 million were investigated. Boundary-layer profiles were surveyed. Mean and fluctuating surface pressures were measured in both the circumferential and the spanwise directions. The mean surface pressure data are compiled and presented in the Volume 1 report using both graphical and tabular format. Mean sectional drag and lift coefficients were calculated. The drag coefficients, the base pressures, and the boundary-layer separation angles were also compared to data existing in the literature. Keywords High Reynolds number flow Circular cylinders Surface roughness Vortex shedding.

Descriptors:

• *BOUNDARY LAYER FLOW
• *SURFACE ROUGHNESS
• BASE PRESSURE
• ANGLES
• BOUNDARY LAYER
• FLOW SEPARATION
• COEFFICIENTS
• DRAG
• FLOW
• HIGH RATE
• REYNOLDS NUMBER
• MEAN
• PROFILES
• CIRCULAR
• CYLINDRICAL BODIES
• FORMATS
• GRAPHICS
• TABLES(DATA)
• LIFT
• SURFACE PROPERTIES
• PRESSURE MEASUREMENT
• HEIGHT
• PRESSURE DISTRIBUTION
• VORTEX SHEDDING
• ROUGHNESS

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE