Experimental and CFD Investigation of Nozzle Angle in Jet Mixer
| Autor: | Rafiei, Hamid, Janamiri, Reza, Sedaghat, Mohammad Hossein, Hatampour, Amir |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| DOI: | 10.5281/zenodo.1081429 |
| Popis: | In this work, the results of mixing study by a jet mixer in a tank have been investigated in the laboratory scale. The tank dimensions are H/D=1 and the jet entrance have been considered in the center of upper surface of tank. RNG-k-ε model is used as the turbulent model for the prediction of the pattern of turbulent flow inside the tank. For this purpose, a tank with volume of 110 liter is simulated and it has been divided into 410,000 tetrahedral control cells for performing the calculations. The grids at the vicinity of the nozzle and suction pare are finer to get more accurate results. The experimental results showed that in a vertical jet, the lowest mixing time takes place at 35 degree. In addition, mixing time decreased by increasing the Reynolds number. Furthermore, the CFD simulation predicted the items as well a flow patterns precisely that validates the experiments. {"references":["Brooker, L., \"Mixing with the jet set\", Chemical Engineering Science, Vol. 30, No. 16, 1993.","Jayanti, S., \"Hydrodynamics of jet mixing in vessels\", Chemical Engineering Science, Vol. 56, pp. 193–210, 2001.","Patwardhan, A.W., \"CFD modeling of jet mixed tanks\", Chemical Engineering Science, Vol. 57, pp. 1307–1318, 2002","Rahimi, Parvareh, A., \"CFD study on\nmixing by coupled jet-impeller mixers in a large crude oil storage tank\", Computers and Chemical Engineering, Vol. 31, pp. 737–744, 2006."]} |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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