碩士 / 國立中興大學 / 水土保持學系所 / 94 / Abstract
The purpose of this study proposed herein is to research which understand about grain size, grain density, grain water content, wind velocity and wind blown sand in Taichung Harbor, at one time we observing the wind blown sand and wind velocity by sand sampler and multi-layer anemometer, further, estimates wind blown sand by
Kawamura dimension analyze.
The results of data by regression analysis that can be derived by power expression between wind velocity and wind blown sand, the grain size, grain density have negative relationship with wind blown sand, however, grain water content have no relationship with wind blown sand at 0.3％ water content, moreover, the BSNE is closed than H-2 to estimates fluctuation of sand dune in Taichung Harbor. Two adjust estimates equation of wind blown sand by
BSNE sand sampler
(Q / d50 * U0.2 * σ) = 6.56 * 10-4 * ( U0.2^2 / g * d50 * σ/ρ )^0.8458（1）
H-2 sand sampler
(Q / d50 * U0.2 * σ) = 2.5 * 10-4 * ( U0.2^2 / g * d50 *σ/ρ )^0.7214（2）
Key Words : wind blown sand, BSNE, wind velocity, wind tunnel.
| Identifer | oai:union.ndltd.org:TW/094NCHU5080038 |
| Date | January 2006 |
| Creators | Chang-Han Wu, 吳昌翰 |
| Contributors | 黃隆明 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 60 |
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