Blown-Sand Transport Rate

Abstract

Several sand transport rate data sets and eight representative transport rate formulae are transformed using the dimensionless parameters = gQ/U3* and r = U*t/U* and the results compared on the (, r) plane. The formulae generate three different geometric patterns - constant, monotonic decreasing and concave downward - and the corresponding data displayed one more pattern, a monotonic increasing one. Stimulated by this discrepancy, a new general formula for the sand transport rate with and r as its basis is introduced; each of the representative formulae is either a particular case of it or an approximation to it. The four parameters in the new formula are determined for description of the four possible patterns exhibited by the data; their variation is established and their physical interpretation is discussed in relation to measured data of the characteristic parameters of wind flow and sand.

Department(s)

Civil, Architectural and Environmental Engineering

Sponsor(s)

National Natural Science Foundation (China)

Keywords and Phrases

Dimensionless Parameter; Formula Type; Transport Rate Formula

International Standard Serial Number (ISSN)

0197-9337

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 John Wiley & Sons, All rights reserved.

Publication Date

01 Jan 2004

Link to Full Text

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