View Now - Ansys

More documents

Recommendations

Info

Ps Ps 0 Validation 2 - Results h09 1500 2000 2500 3000 3500 4000 4500 5000 h13 t, sec Fluent with adaption Fluent without adaption test 0 1500 2000 2500 3000 3500 4000 4500 5000 t, sec Fluent with adaption Fluent without adaption test 14 Ps Ps 0 h10 1500 2000 2500 3000 3500 4000 4500 5000 h14 t, sec Fluent with adaption Fluent without adaption test 0 1500 2000 2500 3000 3500 4000 4500 5000 t, sec h14 - Fluent with adaption h14 - Fluent without adaption h14 - test Numerical and experimental time histories of pressure at four hull locations. Also shown numerical results computed on the original mesh without adaption
Advanced BWIP Development max p • Utilizes to determine shock location. • Identifies shock center based on above. • Marks cells a prescribed distance from shock center. • Mark cells based on mass fraction of propellant. • Combines registers. V min • Creates a buffer zone in front of shock based on dot product of vector defined by two cell centroids and a velocity vector • Grid adaption frequency controlled based on time for shock to pass to edge of buffer zone. • U.S. Patent Application # 60/944,612 Filed on 6/18/07 15
Page 1 and 2: 2008 International ANSYS Conference
Page 3 and 4: Blast Waves • A blast wave is the
Page 5 and 6: Simulation Approach • CFD finite-
Page 7 and 8: Validation 1 - Small Caliber Gun Re
Page 9 and 10: BWIP Development Rationale • Stan
Page 11 and 12: Validation 2 - Mesh and Solution-ba
Page 13: Validation 2 - Results Mesh Static
Page 17 and 18: Validation 3 - Side-on Pressure 17
Page 19 and 20: Validation 3 - Maximum Overpressure
Page 21 and 22: Validation 3 - Animation 2 21
Page 23 and 24: Validation 4 - Fixed Mesh vs BWIP F
Page 25 and 26: Overpressure (psi) 15 10 Validation
Page 27: Conclusions • High-quality 3-D bl

View Now - Ansys

Create successful ePaper yourself

Delete template?

Save as template?