Experimental Measurement on the Dispersion Characteristics of Elevated Point Source Discharge in Coastal and Harbor Region

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簡歷

基本資料

Project title

Code/計畫編號

MOST103-2221-E019-056

Translated Name/計畫中文名

海岸及港區高程點源廢氣污染排放之擴散實驗分析

Project Coordinator/計畫主持人

Bao-Shi Shiau

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Harbor and River Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=8361159

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

01-07-2015

Bugetid/研究經費

726千元

ResearchField/研究領域

環境科學

本研究主要係利用大氣環境風洞，配合適當渦流產生器與粗糙元素組合，模擬海岸或港區都市地況之中性大氣紊流邊界層流，並以此為迫近流。在此迫近流之流場中進行點源排放於相同大小兩棟方柱形建築物但具有不同間距排列之狀況下擴散變化量測。關於高程點源高度以及相同雙棟方柱形建築物之不同間距，對於濃度分佈特性以及擴散參數之影響效應。 In the present study, wind tunnel experiments were conducted to measure the wind flow and dispersion characteristics of source plume interacting with two same buildings arranged with different spaces and directions. The vortex generatiors and roughness elements were appropriately arranged in the wind tunnel to simulate the neutral atmospheric boundary layer flows as the approaching flow for the experiments. Effects of height of elevated source and building gaps on the dispersion characteristics are investigated in the study.

Keyword(s)

高程點源
羽昇流
密度福祿數
延散尺度參數
紊流邊界層
城市街谷
elevated point source
plume
densimetric Froude number
dispersion parameter
turbulent boundary layer
city street canyon

DSpace CRIS

Experimental Measurement on the Dispersion Characteristics of Elevated Point Source Discharge in Coastal and Harbor Region

基本資料

Description