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Title:

MATHEMATICAL MODEL OF RUNOFF FROM GROOVED RUNWAYS

Accession Number:

00385678

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/00978515

Abstract:

A conceptual model of runoff from grooved runways based on a hydraulically equivalent ungrooved surface has been investigated for its capability to simulate flow depths on a runway surface. The specific objective of model development is to predict runoff characteristics for uniform rainfall rates on a 100-foot wide concrete runway, grooved and sloping traversely at 1-1/2 percent. A FORTRAN IV computer program is used to solve the kinematic wave approximation to the shallow water equations which are central to the model. The kinematic wave approximation is employed for various hydraulic roughnesses as predicted from another study using a typical maxrotexture range of 0.01 inch to 0.03 inch. A rectangular groove shape with fixed dimensions is considered at five different spacings. The computer simulation results show that grooving enhances the drainage from the pavement in the form of decreased surface depths. The maximum depth reduction due to grooving is about 19 percent for all rainfall intensities, including the 6 inch per hour maximum in this study. These results are tentative, since an experimental study involving equipment that simulates rain on an indoor slab is presently underway. Qualitative observations of early experimental runs seem to indicate that depth reductions based on computer model runs may be too small.

Supplemental Notes:

This paper appeared in transportation Research Circular Number 274, Developments in Aircraft and Airport Compatibility. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Reed, J R
Kibler, D F
Agrawal, Sudhir K

Pagination:

p. 16-24

Publication Date:

1984-4

Serial:

Transportation Research Circular

Issue Number: 274
Publisher: Transportation Research Board
ISSN: 0097-8515

Media Type:

Digital/other

Features:

Figures (8) ; References (24)

Old TRIS Terms:

Subject Areas:

Aviation; Design; Highways; Hydraulics and Hydrology; Pavements

Files:

TRIS, TRB

Created Date:

Jul 30 1988 12:00AM

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