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Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers
นักวิจัย : Su, Ninghu. , Watt, Jim P. C. , Vincent, Keith W. , Close, Murray E. , Mao, Renzhao.
คำค้น : TBA , 770402 Land and water management , TBA , Burgers equation. , Soil moisture , Soil-water flow -- TDR
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2547
อ้างอิง : http://hdl.cqu.edu.au/10018/1911 , , cqu:1448
ที่มา : Su, N, Watt, J P, Vincent, K W, Close, M E & Mao, R 2004, 'Analysis of turbulent flow patterns of soil water under field conditions using burgers equation and porous suction-cup samplers', Australian Journal of Soil Research, vol. 42, no. 1, pp. 9-16.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Australian Journal of Soil Research Collingwood. : CSIRO Publishing, 2004. Vol. 42, no. 1(2004), p. 9-16 8 pages Refereed 0004-9573 , aCQUIRe [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This paper presents results using the Burgers equation in spherical coordinates for the investigation of soil water dynamics around porous cup samplers under field conditions. The analysis reveals that the yield (V) of the porous suction-cup sampler is a power function of inflow duration (T) and source moisture strength (A). It also shows that the shock front velocity and moving boundary of the front are both power functions of A and time. The analysis further demonstrates that the asymptotic shock front velocity derived from a similarity solution is the same for different versions of Burgers equation, indicating the validity of different versions of Burgers equation for the flow patterns. The observation using time domain reflectometry shows that a moisture shock was induced around the sampler following application of a vacuum, which justifies the application of Burgers equation. The values of A were derived using field data to determine the location and the front velocity of the shock.

บรรณานุกรม :
Su, Ninghu. , Watt, Jim P. C. , Vincent, Keith W. , Close, Murray E. , Mao, Renzhao. . (2547). Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Su, Ninghu. , Watt, Jim P. C. , Vincent, Keith W. , Close, Murray E. , Mao, Renzhao. . 2547. "Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Su, Ninghu. , Watt, Jim P. C. , Vincent, Keith W. , Close, Murray E. , Mao, Renzhao. . "Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2547. Print.
Su, Ninghu. , Watt, Jim P. C. , Vincent, Keith W. , Close, Murray E. , Mao, Renzhao. . Analysis of turbulent flow patterns of soil water under field conditions using Burgers equation and porous suction-cup samplers. กรุงเทพมหานคร : Central Queensland University, Australia; 2547.