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Hybrid finite-volume/transported PDF...
~
Raman, Venkatramanan.
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Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows.
Record Type:
Electronic resources : Monograph/item
Title/Author:
Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows./
Author:
Raman, Venkatramanan.
Description:
192 p.
Notes:
Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4497.
Contained By:
Dissertation Abstracts International64-09B.
Subject:
Engineering, Chemical. -
Online resource:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3105101
ISBN:
0496526686
Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows.
Raman, Venkatramanan.
Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows.
- 192 p.
Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4497.
Thesis (Ph.D.)--Iowa State University, 2003.
A novel computational scheme is formulated for simulating turbulent reactive flows in complex geometries with detailed chemical kinetics. A Probability Density Function (PDF) based method that handles the scalar transport equation is coupled with an existing Finite Volume (FV) Reynolds-Averaged Navier-Stokes (RANS) flow solver. The PDF formulation leads to closed chemical source terms and facilitates the use of detailed chemical mechanisms without approximations. The particle-based PDF scheme is modified to handle complex geometries and grid structures. Grid-independent particle evolution schemes that scale linearly with the problem size are implemented in the Monte-Carlo PDF solver. A novel algorithm, in situ adaptive tabulation (ISAT) is employed to ensure tractability of complex chemistry involving a multitude of species. Several non-reacting test cases are performed to ascertain the efficiency and accuracy of the method. Simulation results from a turbulent jet-diffusion flame case are compared against experimental data. The effect of micromixing model, turbulence model and reaction scheme on flame predictions are discussed extensively. Finally, the method is used to analyze the Dow Chlorination Reactor. Detailed kinetics involving 37 species and 158 reactions as well as a reduced form with 16 species and 21 reactions are used. The effect of inlet configuration on reactor behavior and product distribution is analyzed. Plant-scale reactors exhibit quenching phenomena that cannot be reproduced by conventional simulation methods. The FV-PDF method predicts quenching accurately and provides insight into the dynamics of the reactor near extinction. The accuracy of the fractional time-stepping technique in discussed in the context of apparent multiple-steady states observed in a non-premixed feed configuration of the chlorination reactor.
ISBN: 0496526686Subjects--Topical Terms:
1018531
Engineering, Chemical.
Hybrid finite-volume/transported PDF method for the simulation of turbulent reactive flows.
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Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4497.
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Major Professor: Rodney O. Fox.
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Thesis (Ph.D.)--Iowa State University, 2003.
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A novel computational scheme is formulated for simulating turbulent reactive flows in complex geometries with detailed chemical kinetics. A Probability Density Function (PDF) based method that handles the scalar transport equation is coupled with an existing Finite Volume (FV) Reynolds-Averaged Navier-Stokes (RANS) flow solver. The PDF formulation leads to closed chemical source terms and facilitates the use of detailed chemical mechanisms without approximations. The particle-based PDF scheme is modified to handle complex geometries and grid structures. Grid-independent particle evolution schemes that scale linearly with the problem size are implemented in the Monte-Carlo PDF solver. A novel algorithm, in situ adaptive tabulation (ISAT) is employed to ensure tractability of complex chemistry involving a multitude of species. Several non-reacting test cases are performed to ascertain the efficiency and accuracy of the method. Simulation results from a turbulent jet-diffusion flame case are compared against experimental data. The effect of micromixing model, turbulence model and reaction scheme on flame predictions are discussed extensively. Finally, the method is used to analyze the Dow Chlorination Reactor. Detailed kinetics involving 37 species and 158 reactions as well as a reduced form with 16 species and 21 reactions are used. The effect of inlet configuration on reactor behavior and product distribution is analyzed. Plant-scale reactors exhibit quenching phenomena that cannot be reproduced by conventional simulation methods. The FV-PDF method predicts quenching accurately and provides insight into the dynamics of the reactor near extinction. The accuracy of the fractional time-stepping technique in discussed in the context of apparent multiple-steady states observed in a non-premixed feed configuration of the chlorination reactor.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3105101
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