Numerical and experimental investigations of the pollutant distribution in sewers

2002 ◽  
Vol 45 (7) ◽  
pp. 83-93 ◽  
Author(s):  
P. Jaumouillié ◽  
F. Larrarte ◽  
V. Milisic
Keyword(s):  
Experimental Program ◽  
Experimental Investigations ◽  
Hydrodynamic Conditions ◽  
Precise Knowledge ◽  
Laboratoire Central ◽  
Suspended Matter Concentration ◽  
Pollutant Distribution ◽  
Measurement Location ◽  
Matter Concentration ◽  
Sewer Networks

Controlling flow and pollutant discharges through sewer networks is required for a number of reasons. In order to accomplish such control, precise knowledge of the hydrodynamic conditions of each candidate measurement location proves critical. The Laboratoire Central dos Ponts et Chaussés has thus become involved in an experimental program on velocity and suspended matter concentration fields. This paper first presents the measurement methods and experimental results obtained before providing and discussing some of the numerical results.

scholarly journals Inversion of suspended matter concentration in Lake Chaohu based on Partial Leastsquares Regression

2011 ◽  
Vol 23 (3) ◽  
pp. 357-365 ◽  
Author(s):  
LIU Zhonghua ◽  
◽  
LI Yunmei ◽  
LV Heng ◽  
XU Yifan ◽  
...  
Keyword(s):  
Suspended Matter ◽  
Lake Chaohu ◽  
Suspended Matter Concentration ◽  
Matter Concentration

Experimental Investigations on Spot Welded Built-Up Cold-Formed Steel Beams

2018 ◽  
Vol 1146 ◽  
pp. 142-151
Author(s):  
Viorel Ungureanu ◽  
Ioan Both ◽  
Mircea Burca ◽  
Ştefan Benzar ◽  
Thai Hoang Nguyen ◽  
...  
Keyword(s):  
Spot Welding ◽  
Steel Sheet ◽  
Experimental Program ◽  
Experimental Investigations ◽  
Steel Beams ◽  
Technological Solution ◽  
Research Project ◽  
Steel Sheets ◽  
Cold Formed Steel ◽  
Thin Walled

Within the WELLFORMED research project, ongoing at the CEMSIG Research Center of the Politehnica University of Timisoara, a new technological solution was proposed for built-up beams made of corrugated steel sheets for the web and thin-walled cold-formed steel profiles for the flanges, connected by spot welding. The research project integrates an extensive experimental program on such beams, using full scale specimens, to demonstrate the feasibility of the proposed solutions and to assess their performance, followed by numerical simulations to characterize and optimize the connecting details. The present paper presents the results of a large experimental program, on small specimens subjected to shear, consisting of two or three layers of steel sheet connected by spot welding.

Investigation of Performance of Fins Geometry on a Vertical Cylinder

2019 ◽  
Author(s):  
Nagendra P. Yadav ◽  
Ayush Srivastava
Keyword(s):  
Convection Heat Transfer ◽  
Vertical Cylinder ◽  
Power Input ◽  
Experimental Investigations ◽  
Base Temperature ◽  
Natural Convection Heat Transfer ◽  
Convection Heat ◽  
Power Inputs ◽  
Measurement Location ◽  
Better Than

Abstract This paper focuses the prediction of the performance of fins having different geometry on a vertical cylinder in natural convection heat transfer. The extensive experimental investigations are performed for different geometrical profile of fins. The hollow cylindrical base having the same fins on their periphery with variable numbers 6 to 18. The temperature measurement was done at different location on the base of cylindrical surface as well as on the surface of the fins. The temperature behaviors for various fins are discussed with power. The measurement was done after justification of the steady state. The temperature is decreases with measurement location from base to tip of fin. As per the variation of base temperature and thermal resistance, semiconvex profile of fin is better than other geometry of fin. The Nusselt number is higher at low power input and less number of fins. The variation in temperature for different power inputs and geometry of fin and the numbers of fin help us to design fins which can be used up in advanced semiconductors in the newest technology because the cooling of those devices is a major challenge to the industries and researchers.

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