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Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation.

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Presentation on theme: "Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation."— Presentation transcript:

1 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 1 MUSCLES Modelling of Unsteady Combustion in Low Emission Systems G4RD-CT R&T Project within the 5 th Framework Program of the European Union

2 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy Time Dependent Numerical Prediction of the Reactive Flow Field Within and Downstream an Avio LPP System

3 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL GRIDS : Nozzle-Duct C05D Premixer Nozzle-Duct Premixer Grid type:Structured-Multiblock N° of total Blocks175 Azim. angle:360.0° N° of total cells:225000

4 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL GRID : Nozzle-Duct C05D Premixer & Experimental Test Rig Numerical Test Rig Grid type:Structured-Multiblock N° of total Blocks:203 Geometry:Fully 3D° N° of total cells: Boundary Conditions Mass Flow : kg/s Static Temperature Inlet: 760 K Static Pressure Outlet : Pa Experimental Test Rig Zmax = mm - Xmax = 53.8 mm - Ymax = 53.8 mm

5 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASES : Nozzle-Duct C05D Premixer Numerical Boundary Conditions - Case N° 1 - Turbulence Model: TSDIA Combustion Scheme: Standard Radiation Scheme: Off - Case N° 2- Turbulence Model: TSDIA Combustion Scheme: Standard Radiation Scheme: On - Case N° 3 - Turbulence Model: TSDIA Combustion Scheme: Detailed Radiation Scheme: Off - Case N° 4 - Turbulence Model: TSDIA Combustion Scheme: Detailed Radiation Scheme: Off Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Total Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 380 K Droplets Diameters: 40  Cone Angle: 50° Droplets Velocity : 50 m/s

6 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMBUSTION MODELS STANDARD Model : 12 Species - 12 Reactions Species : CH 12 H 23 - O 2 - N 2 - OH - H 2 - O - H 2 O - CO -CO 2 - N - H - NO DC* Model : 41 Species Reactions Species : C 12 H 23 - CH 4 - O 2 - N 2 - OH - H 2 - O - H 2 O - CO -CO 2 - N - H - NO - CH 3 OCH 3 - HO 2 - H 2 O 2 - C 2 H - C 2 H 2 - C(S) - CH 2 O - HCO - CH 3 O - CH 3 OH - CH 2 OH - CH 3 - CH 2 - HCOOH - C 2 H 3 - C 2 H 4 - C 2 H 5 - C 2 H 6 - C 3 H 3 - C 4 H 2 - N 2 O - CH - CH 2 (S) - C 3 H 2 - C 3 H 6 - CH 3 CO - CH 3 HCO - CH 2 CO DC* DC*: Detailed Chemistry

7 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 1. 2C12H23+ 12O2= 24CO+ 23H2 2. O2+ 2N2= 2N+ 2NO 3. 2O2+ N2= 2O+ 2NO 4. N2+2OH=CO2+H 5.CO+ OH= CO2+ H 6. O2+ H= O+ OH 7. H2+ OH= H2O+ H 8. H2+ O= H+ OH 9. H2= 2H 10. O2 =2O 11. N2=2N 12. O2 + H2= 2OH 13. O2+2H2O=4OH STANDARD REACTIONS MECHANISM

8 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 0. CH12H23 + O2 = C12H HO2 1. CH4 + O2 = CH3 + HO2 2. CH4 + H = CH3 + H2 3. CH4 + OH = CH3 + H2O 4. CH4 + O = CH3 + OH 5. CH4 + HO2 = CH3 + H2O2 6. CH3 + HO2 = CH3O + OH 7. CH3 + O2 = CH3O + O 8. CH3 + O2 = CH2O + OH 9. CH3 + CH2O = CH4 + HCO 10. CH3 + HCO = CH4 + CO 11. CH3 + O = CH2O + H 12. CH3 + OH = CH2 + H2O 13. CH3 + OH = CH2O + H2 14. CH3 + H = CH4 15. CH3 + CH3 = C2H6 16. CH3 + CH3O = CH4 + CH2O 17. CH3 + CH2OH = CH4 + CH2O 18. CH3 + C2H5 = CH4 + C2H4 19. CH3 + C2H4 = CH4 + C2H3 20. CH3 + C2H3 = CH4 + C2H2 21. CH3 + C2H2 = CH4 + C2H 22. CH3 + CH3 = C2H4 + H2 23. CH3 + M = CH2 + H + M 24. CH3 + HCO = CH2 + CH2O 25. CH2 + H2 = CH3 + H 26. CH2 + CH3 = C2H4 + H 27. CH2 + OH = CH + H2O 28. CH2 + OH = CH2O + H 29. CH2 + CH2 = C2H2 + H2 30. CH2 + HCCO = C2H3 + CO 31. CH2 + O = CO + H + H 32. CH2 + O = HCO + H 33. CH2 + O2 = CO2 + H + H 34. CH2 + O2 = CH2O + O 35. CH2 + O2 = CO2 + H2 36. CH2 + O2 = HCO + OH 37. CH2(S) + CH3 = C2H4 + H 38. CH2(S) + H2 = CH3 + H 39. CH2(S) + CH4 = CH3 + CH3 40. CH2(S) + C2H6 = CH3 + C2H5 41. CH2(S) + C2H2 = C3H3 + H 42. CH2(S) + N2 = CH2 + N2 DETAILED REACTIONS MECHANISM - 1

9 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 43. CH2(S) + AR = CH2 + AR 44. CH2(S) + CO2 = CH2 + CO2 45. CH2(S) + CO2 = CH2O + CO 46. CH2(S) + H2O = CH2 + H2O 47. CH2(S) + O2 = CO + OH + H 48. CH2(S) + O2 = CO + H2O 49. CH2(S) + H = CH + H2 50. CH2(S) + O = CO + H2 51. CH2OH + H = CH3 + OH 52. CH3O + H = CH3 + OH 53. CH3O + M = CH2O + H + M 54. CH2OH + M = CH2O + H + M 55. CH3O + H = CH2O + H2 56. CH2OH + H = CH2O + H2 57. CH3O + OH = CH2O + H2O 58. CH2OH + OH = CH2O + H2O 59. CH3O + O = CH2O + OH 60. CH2OH + O = CH2O + OH 61. CH3O + O2 = CH2O + HO2 62. CH2OH + O2 = CH2O + HO2 63. CH + H2 = H + CH2 64. CH + O2 = HCO + O 65. CH + O = CO + H 66. CH + OH = HCO + H 67. CH + CO2 = HCO + CO 68. CH + H2O = CH2O + H 69. CH + CH2O = CH2CO + H 70. CH + C2H2 = C3H2 + H 71. CH + CH2 = C2H2 + H 72. CH + CH3 = C2H3 + H 73. CH + CH4 = C2H4 + H 74. CH2O + OH = HCO + H2O 75. CH2O + H = HCO + H2 76. CH2O + M = HCO + H + M 77. CH2O + O = HCO + OH 78. CH2O + O2 = HCO + HO2 79. CH2O + HO2 = HCO + H2O2 80. CH2O + HO2 = HCOOH + OH 81. HCOOH + H = H + CO2 + H2 82. HCOOH + O = H + CO2 + OH 83. HCOOH + OH = H + CO2 + H2O 84. HCOOH + HO2 = H2O2 + CO2 + H 85. HCOOH + CH3 = CH4 + CO2 + H 86. HCOOH + CH3OCH2 = CH3OCH3 + CO2 + H DETAILED REACTIONS MECHANISM - 2

10 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 109. C2H4 + CH3O2 = CH3HCO + CH3O 110. C2H3 + OH = CH3HCO 111. C2H4 + H = C2H C2H5 + H = CH3 + CH C2H5 + O2 = C2H4 + HO C2H2 + O = CH2 + CO 115. C2H + H2 = C2H2 + H 116. C2H3 = C2H2 + H 117. C2H3 + H = C2H2 + H C2H3 + O = CH2CO + H 119. C2H3 + O2 = CH2O + HCO 120. C2H3 + O2 = C2H2 + HO C2H3 + OH = C2H2 + H2O 122. C2H3 + CH2 = C2H2 + CH C2H3 + C2H = C2H2 + C2H C2H3 + CH = CH2 + C2H C2H2 + OH = C2H + H2O 126. C2H2 + OH = CH2CO + H 127. C2H2 + OH = CH3 + CO 128. C2H2 + O = C2H + OH 129. CH2CO + O = CO2 + CH CH2CO + O = HCO + HCO 87. HCO + OH = H2O + CO 88. HCO + H2O = H + CO + H2O 89. HCO + M = H + CO + M 90. HCO + H = CO + H2 91. HCO + O = CO + OH 92. HCO + O = CO2 + H 93. HCO + O2 = HO2 + CO 94. HCO + HCO = CH2O + CO 95. HCO + HCO = H2 + CO + CO 96. CO + O + M = CO2 + M 97. CO + OH = CO2 + H 98. CO + O2 = CO2 + O 99. CO + HO2 = CO2 + OH 100. C2H6 + CH3 = C2H5 + CH C2H6 + H = C2H5 + H C2H6 + O = C2H5 + OH 103. C2H6 + OH = C2H5 + H2O 104. C2H4 + H = C2H3 + H C2H4 + O = CH3 + HCO 106. C2H4 + OH = C2H3 + H2O 107. C2H4 + HO2 = CH3HCO + OH 108. C2H4 + CH3O = CH3HCO + CH3 DETAILED REACTIONS MECHANISM - 3

11 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 131. CH2CO + H = CH3 + CO 132. CH2CO + M = CH2 + CO + M 133. C2H + O2 = CO + CO + H 134. C2H + O = CH + CO 135. C3H3 + O2 = CH2CO + HCO 136. C3H3 + O = CH2O + C2H 137. C2H2 + O2 = HCCO + OH 138. C2H2 + M = C2H + H + M 139. C2H4 + M = C2H2 + H2 + M 140. H2 + O2 = OH + OH 141. H2 + OH = H2O + H 142. O + OH = O2 + H 143. O + H2 = OH + H 144. H + O2 + M = HO2 + M 145. H + O2 + AR = HO2 + AR 146. OH + HO2 = H2O + O H + HO2 = OH + OH 148. O + HO2 = O2 + OH 149. H2 + HO2 = H2O + OH 150. OH + OH = O + H2O 151. H + H + M1 = H2 + M H + H + H2 = H2 + H H + H + H2O = H2 + H2O 154. H + H + CO2 = H2 + CO H + OH + M = H2O + M 156. H + O + M = OH + M 157. O + O + M = O2 + M 158. H + HO2 = H2 + O HO2 + HO2 = H2O2 + O H2O2 + M = OH + OH + M 161. H2O2 + H = HO2 + H H2O2 + OH = H2O + HO H + HO2 = O + H2O 164. O + OH + M = HO2 + M 165. H2O2 + H = H2O + OH 166. H2O2 + O = H2O + O H2O2 + O = OH + HO CH3CO + H = CH2CO + H CH3CO + O = CH3 + CO CH3CO + CH3 = C2H6 + CO 171. CH3CO = CH3 + CO 172. C2H6 + O2 = C2H5 + HO C2H4 + O2 = C2H3 + HO C2H5 + HO2 = C2H4 + H2O CH3OH = CH2OH + H 176. CH3OH = CH3O + H 177. CH3OH = CH3 + OH 178. CH3OH + O2 = CH2OH + HO2 DETAILED REACTIONS MECHANISM - 4

12 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 179. CH3OH + H = CH2OH + H CH3OH + H = CH3O + H CH3OH + O = OH + CH2OH 182. CH3OH + O = OH + CH3O 183. CH3OH + OH = CH2OH + H2O 184. CH3OH + OH = CH3O + H2O 185. CH3OH + HO2 = CH2OH + H2O CH3OH + CH3 = CH2OH + CH CH3OH + CH3 = CH3O + CH CH3OH + CH3O = CH3OH + CH2OH 189. CH3O + CH3O = CH3OH + CH2O 190. CH2OH + CH2OH = CH3OH + CH2O 191. CH2OH + HCO = CH3OH + CO 192. CH3HCO = CH3 + HCO 193. CH3HCO = CH3CO + H 194. CH3HCO + O2 = CH3CO + HO CH3HCO + H = CH3CO + H CH3HCO + OH = CH3CO + H2O 197. CH3HCO + O = CH3CO + OH 198. CH3HCO + CH3 = CH3CO + CH CH3HCO + HO2 = CH3CO + H2O CH3OCH3 = CH3+CH3O 201. C3H3 + OH = C3H2 + H2O 202. C2H6 + CH = H + C3H C3H6 + O = CH3CO + CH C3H6 + O = C2H5 + HCO 205. CH3 + C2H3 = C3H C2H6 + O2 = C2H5 + HO C2H4 + O2 = C2H3 + HO C2H5 + HO2 = C2H4 + H2O C3H6 + O = CH2O + C2H C3H6 + OH = CH3 + CH3HCO 211. C3H6 + OH = C2H5 + CH2O 312. C3H3 + C3H3 = C6H5 + H 213. C(S) + O2 = O + CO 214. C(S) + CH3 = H + C2H C(S) + OH = CO + H 216. C(S) + NO = CO + N 217. N + CO2 = NO + CO 218. N2 + O = NO + N 219. N + O2 = NO + O 220. NO + M = N + O + M 221. NO + NO = N2 + O N2O + M = N2 + O + M 223. N2O + O = N2 + O N2O + O = NO + NO 225. N2O + N = N2 + NO DETAILED REACTIONS MECHANISM - 5

13 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer - Case N° 1 - Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 380 K Droplets Diameters: 80  Cone Angle: 50° Droplets Velocity : 50 m/s Solver Setup Combustion Model: Standard Turbulence Model: TSDIA Radiation Model: OFF

14 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of CO2 [Mass Fraction] Contours of H2O [Mass Fraction] Contours of OH [Mass Fraction]Contours of NO [Mass Fraction]

15 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Fuel Gas Mass Source [Kg/s] Contours of Static Temperature [°K] Contours of Turb. Kin. Energy [m 2 /s 2 ]Contours of Velocity Magnitude [m/s]

16 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer - Case N° 2 - Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 380 K Droplets Diameters: 80  Cone Angle: 50° Droplets Velocity : 50 m/s Solver Setup Combustion Model: Standard Turbulence Model: TSDIA Radiation Model: ON Wall Temperature : 600 K Emissivity: 0.8

17 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of CO2 [Mass Fraction] Contours of H2O [Mass Fraction] Contours of OH [Mass Fraction]Contours of NO [Mass Fraction]

18 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Fuel Gas Mass Source [Kg/s] Contours of Static Temperature [°K] Contours of Turb. Kin. Energy [m 2 /s 2 ]Contours of Velocity Magnitude [m/s]

19 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer - Case N° 3 - Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 380 K Droplets Diameters: 80  Cone Angle: 50° Droplets Velocity : 50 m/s Solver Setup Combustion Model: Detailed Mechanism Turbulence Model: TSDIA Radiation Model: OFF

20 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of CO2 [Mass Fraction] Contours of H2O [Mass Fraction] Contours of OH [Mass Fraction]Contours of NO [Mass Fraction]

21 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Fuel Gas Mass Source [Kg/s] Contours of Static Temperature [°K] Contours of Turb. Kin. Energy [m 2 /s 2 ]Contours of Velocity Magnitude [m/s]

22 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer - Case N° 4 - Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 380 K Droplets Diameters: 80  Cone Angle: 50° Droplets Velocity : 50 m/s Solver Setup Combustion Model: Detailed Mechanism Turbulence Model: TSDIA Radiation Model: ON Wall Temperature : 600 K Emissivity: 0.8

23 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of CO2 [Mass Fraction] Contours of H2O [Mass Fraction] Contours of OH [Mass Fraction]Contours of NO [Mass Fraction]

24 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Fuel Gas Mass Source [Kg/s] Contours of Static Temperature [°K] Contours of Turb. Kin. Energy [m 2 /s 2 ]Contours of Velocity Magnitude [m/s]

25 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Particle Traces Coloured by Static Temperature [K] Case 1 : STD Mechanism - Radiation OFFCase 2 : STD Mechanism - Radiation ON Case 1 : DC Mechanism - Radiation OFFCase 2 : DC Mechanism - Radiation ON

26 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Static Temperature [K] Case 1 : STD Mechanism - Radiation OFF Case 1 : DC Mechanism - Radiation OFFCase 2 : DC Mechanism - Radiation ON Case 2 : STD Mechanism - Radiation ON

27 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy 27 Iterations Transient Performance Method : Function TPM Modified Functional Design Values Functional Design Values

28 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer - Case N° 5 - Boundary Conditions AIR Total Pressure Inlet: Pa Total Temperature Inlet: 760 K Air Mass Flow Inlet: Kg/s Boundary Conditions FUEL Fuel: Kerosene Liquid [C12H23] Fuel Mass Flow Inlet: Kg/s Total Temperature Inlet: 298 K [Old value 380 K] Droplets Diameters: 80  Cone Angle: 40°[Old Value 50°] Droplets Velocity : 65 m/s [Old Value 50 m/s] Solver Setup Combustion Model: Detailed Mechanism Turbulence Model: TSDIA Radiation Model: ON Wall Temperature : 600 K Emissivity: 0.8

29 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Fuel Mass Source [Kg/s]Contours of Static Temperature [°K] Contours of Turb. Kin. Energy [m 2 /s 2 ]Contours of Velocity Magnitude [m/s]

30 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of HCO [Mass Fraction] Contours of HCOOH [Mass Fraction] Contours of HO2 [Mass Fraction] Contours of N2O [Mass Fraction]

31 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of CO [Mass Fraction]Contours of CO2 [Mass Fraction] Contours of H2O [Mass Fraction] Contours of H2O2 [Mass Fraction]

32 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of C2H [Mass Fraction] Contours of CH [Mass Fraction] Contours of CH2 [Mass Fraction] Contours of CH2S [Mass Fraction]

33 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of OH [Mass Fraction] Contours of NO [Mass Fraction] Particle Traces Coloured by Static Temperature [°K]

34 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of NO [Mass Fraction]

35 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of OH [Mass Fraction]

36 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Static Temperature [°K]

37 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy COMPUTATIONAL CASE : Nozzle-Duct C05D Premixer Contours of Velocity Magnitude [m/s]

38 Mid Term Meeting, Sept. 21st-22nd, 2004, Karlsruhe Presentation by: F.Pittaluga - UNIGE-DIMSET Dept. of Fluid Machinery, Energy Systems and Transportation - University of Genoa, Italy FROM COMPUTATIONAL CASES TO EMISSION DATA SETS \


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